CN219142096U

CN219142096U - Tire pressure sensor testing device

Info

Publication number: CN219142096U
Application number: CN202221539170.3U
Authority: CN
Inventors: 许帅庆; 付浩田; 曹宇震; 徐征帅; 李高峥; 杨铭; 李小伟
Original assignee: Shandong Jiaotong University
Current assignee: Shandong Jiaotong University
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2023-06-06
Anticipated expiration: 2032-06-20

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

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

The pressure sensor used on the tire is required to be tested in the environment of specific rotation speed, specific temperature and specific pressure after production. The utility model patent with the application number of CN202022531850.8 discloses a tire pressure sensor testing device, which comprises a box body, a testing chamber, a sensor connecting piece, a testing motor, a heating rod, a temperature sensor, a pressure gauge and an air pump, wherein the sensor connecting piece for fixing a detected sensor is fixed on an output shaft of the testing motor, the sensor connecting piece is positioned in the testing chamber, the heating rod, the temperature sensor and the pressure gauge are arranged on the box body, the air pump is communicated with the testing chamber, and the testing motor, the heating rod, the temperature sensor, the pressure gauge and the air pump are respectively and electrically connected with a control machine. The application provides specific temperature for the tire pressure sensor through the heating rod and the temperature sensor, provides specific rotating speed for the tire pressure sensor through the test motor, and provides specific pressure for the tire pressure sensor through the manometer and the air pump.

However, the test device cannot simulate the real working condition of the tire pressure sensor when the automobile is running, and the test result is not accurate enough.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a tire pressure sensor testing device which can simulate the real working condition of a tire pressure sensor when an automobile is running, and the testing result is more accurate so as to solve the problems in the prior art.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the tire pressure sensor testing device comprises a frame, wherein a detection box is vertically and slidably arranged on the frame, a mounting plate is fixedly arranged at the bottom of the detection box, two vertically extending shock absorption cylinders 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, and the axis of the roller extends front and back; the automatic detection device is characterized in that an installation box positioned below the detection box is fixedly installed on the frame, a plurality of support shafts extending front and back are installed in the installation box in a side-by-side rotating mode, a plurality of support shafts are connected with an annular support belt in a transmission mode, the support belt is supported at the bottom of the roller, a through hole for the roller to enter is formed in the top of the installation box, a plurality of arc-shaped protrusions are arranged on the outer surface of the support belt, and a driving motor for driving one of the support shafts to rotate is fixedly installed on the installation box.

As an optimal technical scheme, the rack comprises a bottom plate, a top plate positioned above the bottom plate and two vertical plates respectively fixedly arranged between the left end and the right end of the bottom plate and the left end of the top plate; the installation box is fixedly installed on the bottom plate; two vertically extending slide bars are fixedly arranged between the bottom plate and the top plate in a left-right opposite mode, the slide bars are located on the inner sides of the two vertical plates, sliding blocks are fixedly arranged on the left side and the right side of the detection box respectively, and the sliding blocks are arranged on the corresponding slide bars in a vertically sliding mode.

As an optimized technical scheme, an openable airtight door is arranged on the front side of the detection box, a main shaft extending forwards and backwards is rotatably arranged on the inner side of the rear side wall of the detection box, a sensor mounting frame is detachably arranged on the main shaft, and a detection motor for driving the main shaft to rotate is fixedly arranged on the rear side of the detection box; the mounting frame comprises a center sleeve and an annular connecting plate coaxially arranged with the center sleeve, spokes are fixedly connected between the center sleeve and the connecting plate, annular mounting plates are coaxially and fixedly arranged on the front side and the rear side of the connecting plate respectively, and a plurality of screw holes are uniformly arranged on the mounting plates at intervals around the axis.

As the preferable technical scheme, the front end of main shaft is coaxial to be equipped with connecting portion, the diameter of connecting portion is less than the diameter of main shaft, the center cover is in on the connecting portion, fixed mounting has the connecting key in the center cover, be equipped with on the connecting portion with connecting key assorted keyway, the front end of connecting portion is equipped with the external screw thread, the front end of connecting portion has the limit ring that is used for with the center cover compresses tightly soon.

As a further improvement, the detection box is internally and fixedly provided with a balancing weight.

Due to the adoption of the technical scheme, the tire pressure sensor testing device comprises a frame, wherein a detection box is vertically and slidably arranged on the frame, a mounting plate is fixedly arranged at the bottom of the detection box, two vertically extending shock absorption cylinders 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, and the axis of the roller extends front and back; the frame is fixedly provided with an installation box positioned below the detection box, a plurality of support shafts extending forwards and backwards are arranged in the installation box in parallel in a left-right rotation way, the outer sides of the support shafts are in transmission connection with an annular support belt, the support belt is supported at the bottom of the roller, the top of the mounting box is provided with a through hole for the roller to enter, the outer surface of the supporting belt is provided with a plurality of arc-shaped bulges, and the mounting box is fixedly provided with a driving motor for driving one supporting shaft to rotate;

the utility model provides a bump on through the supporting belt drives the detection case vibrations from top to bottom to simulate the car and travel the in-process and jolt because of the road surface is uneven causes, the shock-absorbing cylinder can slow down the vibrations that a part was transmitted for the detection case, thereby simulate the real operating mode of tire pressure sensor in having elastic tire, this application is when testing in addition, and the rotational speed of a plurality of tire pressure sensors is unanimous, and is more accurate to the test result of tire pressure sensor.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of the present utility model;

FIG. 2 is a schematic view of the structure of a mounting box according to an embodiment of the present utility model;

FIG. 3 is a schematic left-hand view of a roller in accordance with an embodiment of the utility model;

FIG. 4 is a schematic view of the structure of a detection box according to an embodiment of the present utility model;

fig. 5 is a schematic left-hand view of a test cassette according to an embodiment of the utility model.

In the figure: 1-a frame; 2-a detection box; 3-mounting plates; 4-a shock absorption cylinder; 5-rolling wheels; 6-installing a box; 7-a support shaft; 8-supporting belts; 9-bulge; 10-driving a motor; 11-a bottom plate; 12-top plate; 13-a vertical plate; 14-sliding bar; 15-a slider; 16-a closed door; 17-a main shaft; 18-mounting frame; 19-detecting a motor; 20-a center sleeve; 21-connecting plates; 22-spokes; 23-mounting plates; 24-screw holes; 25-connecting part; 26-linkage; 27-keyway; 28-limiting rings; 29-balancing weight; 30-an outer cylinder; 31-a piston rod; 32-shaft sleeve; 33-mounting shaft.

Detailed Description

As shown in fig. 1 to 5, a tire pressure sensor testing device comprises a frame 1, wherein a detection box 2 is vertically and slidably arranged on the frame 1, a mounting plate 3 is fixedly arranged at the bottom of the detection box 2, two vertically extending shock-absorbing cylinders 4 are oppositely and fixedly arranged at the front and back of the bottom of the mounting plate 3, a roller 5 is rotatably arranged between the lower ends of the two shock-absorbing cylinders 4, and the axis of the roller 5 extends front and back; as shown in fig. 3, the damper cylinder 4 comprises an outer cylinder 30 and a piston rod 31 extending out of the lower end of the outer cylinder 30, the upper end of the outer cylinder 30 is fixed on the mounting plate 3, a shaft sleeve 32 is fixedly arranged at the lower end of the piston rod 31, mounting shafts 33 are coaxially and fixedly arranged at the front side and the rear side of the roller 5 respectively, and the mounting shafts 33 are rotatably arranged in the corresponding shaft sleeves 32.

The frame 1 is last fixed mounting has the mounting box 6 that is located the below of detecting case 2, as shown in fig. 2, the back-and-forth extension's back shaft 7 is installed in the side by side rotation about in the mounting box 6, the outside transmission of a plurality of back shafts 7 is connected with an annular supporting belt 8, supporting belt 8 supports in the bottom of gyro wheel 5, the top of mounting box 6 is equipped with the opening that supplies gyro wheel 5 to get into, the surface of supporting belt 8 is equipped with a plurality of curved protruding 9, protruding 9 extends along the width direction of supporting belt 8, a plurality of protruding 9 are at the inhomogeneous interval distribution of the surface of supporting belt 8, fixed mounting has the driving motor 10 that is used for driving one of them back shaft 7 pivoted on the mounting box 6.

When testing the tire pressure sensor, drive one of them back shaft 7 through driving motor 10 and rotate, back shaft 7 drives the back belt 8 and rotates, and back belt 8 drives gyro wheel 5 and roll, and when back belt 8 drove one of them protruding 9 and move to with gyro wheel 5 contact, protruding 9 passes through gyro wheel 5 and shock-absorbing cylinder 4 and drives the vibrations about the detection case 2 to simulate the car and travel the in-process and bump because of the road surface is uneven. The piston rod 31 of the damper cylinder 4 can be elastically stretched and contracted, and can slow down the vibration transmitted to the detection box 2 by a part, thereby simulating the actual working condition of the tire pressure sensor in the elastic tire.

The frame 1 comprises a bottom plate 11, a top plate 12 positioned above the bottom plate 11, and two vertical plates 13 respectively fixedly installed between the bottom plate 11 and the left and right ends of the top plate 12; the mounting box 6 is fixedly mounted on the bottom plate 11; two vertically extending slide bars 14 are fixedly arranged between the bottom plate 11 and the top plate 12 in a left-right opposite mode, the slide bars 14 are located on the inner sides of the two vertical plates 13, sliding blocks 15 are fixedly arranged on the left side and the right side of the detection box 2 respectively, the sliding blocks 15 are arranged on the corresponding slide bars 14 in a vertically sliding mode, and the slide bars 14 are used for supporting the detection box 2 and improving the stability of the vertical sliding of the detection box 2.

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

As shown in fig. 4 and 5, a spindle 17 extending forwards and backwards is rotatably mounted on the inner side of the rear side wall of the detection box 2, a sensor mounting frame 18 is detachably mounted on the spindle 17, and a detection motor 19 for driving the spindle 17 to rotate is fixedly mounted on the rear side of the detection box 2; the mounting frame 18 comprises a center sleeve 20 and an annular connecting plate 21 coaxially arranged with the center sleeve 20, spokes 22 are fixedly connected between the center sleeve 20 and the connecting plate 21, annular mounting plates 23 are coaxially and fixedly arranged on the front side and the rear side of the connecting plate 21 respectively, and a plurality of screw holes 24 are uniformly arranged on the mounting plates 23 at intervals around the axis. Screw 24 is used for installing tire pressure sensor, compares with among the prior art with screw 24 setting on spoke 22, and this application sets up screw 24 on annular mounting panel 23, and when testing, a plurality of tire pressure sensor pivoted radius is unanimous, and the rotational speed is also unanimous to avoid the test result inaccuracy that a plurality of tire pressure sensor's rotational speed is inconsistent to lead to.

The front end of the main shaft 17 is coaxially provided with a connecting part 25, the diameter of the connecting part 25 is smaller than that of the main shaft 17, a central sleeve 20 is sleeved on the connecting part 25, a connecting key 26 is fixedly arranged in the central sleeve 20, and the connecting part 25 is provided with a key slot 27 matched with the connecting key 26 and used for preventing the central sleeve 20 from rotating with the connecting part 25; the front end of connecting portion 25 is equipped with the external screw thread, and the front end of connecting portion 25 has the spacing ring 28 that is used for compressing tightly center cover 20 soon, can pull down mounting bracket 18 from detecting box 2 after spacing ring 28 down to install the mounting panel 23 on both sides around with the tire pressure sensor.

A counterweight 29 is fixedly arranged in the detection box 2 and is used for enabling the roller 5 to be in stable contact with the supporting belt 8 through gravity.

The foregoing has shown and described the basic principles, main features and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tire pressure sensor testing arrangement which characterized in that: the device comprises a frame, wherein a detection box is arranged on the frame in a vertically sliding manner, a mounting plate is fixedly arranged at the bottom of the detection box, two damping cylinders which extend vertically are oppositely and fixedly arranged at the front and back of the bottom of the mounting plate, rollers are rotatably arranged between the lower ends of the two damping cylinders, and the axes of the rollers extend front and back; the automatic detection device is characterized in that an installation box positioned below the detection box is fixedly installed on the frame, a plurality of support shafts extending front and back are installed in the installation box in a side-by-side rotating mode, a plurality of support shafts are connected with an annular support belt in a transmission mode, the support belt is supported at the bottom of the roller, a through hole for the roller to enter is formed in the top of the installation box, a plurality of arc-shaped protrusions are arranged on the outer surface of the support belt, and a driving motor for driving one of the support shafts to rotate is fixedly installed on the installation box.

2. A tire pressure sensor testing device as in claim 1, wherein: the rack comprises a bottom plate, a top plate positioned above the bottom plate, and two vertical plates respectively fixedly arranged between the bottom plate and the left and right ends of the top plate; the installation box is fixedly installed on the bottom plate; two vertically extending slide bars are fixedly arranged between the bottom plate and the top plate in a left-right opposite mode, the slide bars are located on the inner sides of the two vertical plates, sliding blocks are fixedly arranged on the left side and the right side of the detection box respectively, and the sliding blocks are arranged on the corresponding slide bars in a vertically sliding mode.

3. A tire pressure sensor testing device as in claim 1, wherein: the front side of the detection box is provided with an openable airtight door, the inner side of the rear side wall of the detection box is rotatably provided with a main shaft extending forwards and backwards, the main shaft is detachably provided with a sensor mounting rack, and the rear side of the detection box is fixedly provided with a detection motor for driving the main shaft to rotate; the mounting frame comprises a center sleeve and an annular connecting plate coaxially arranged with the center sleeve, spokes are fixedly connected between the center sleeve and the connecting plate, annular mounting plates are coaxially and fixedly arranged on the front side and the rear side of the connecting plate respectively, and a plurality of screw holes are uniformly arranged on the mounting plates at intervals around the axis.

4. A tire pressure sensor testing device according to claim 3, wherein: the front end of the main shaft is coaxially provided with a connecting part, the diameter of the connecting part is smaller than that of the main shaft, the central sleeve is sleeved on the connecting part, a connecting key is fixedly installed in the central sleeve, a key slot matched with the connecting key is formed in the connecting part, the front end of the connecting part is provided with an external thread, and a limiting ring used for tightly pressing the central sleeve is screwed at the front end of the connecting part.

5. A tire pressure sensor testing device as in claim 1, wherein: and a balancing weight is fixedly arranged in the detection box.