CN210803521U

CN210803521U - Speed sensor test box

Info

Publication number: CN210803521U
Application number: CN201922129568.4U
Authority: CN
Inventors: 张玲玲; 陈先智
Original assignee: Chenzhou vocational technical college
Current assignee: Chenzhou vocational technical college
Priority date: 2019-12-03
Filing date: 2019-12-03
Publication date: 2020-06-19
Anticipated expiration: 2029-12-03

Abstract

A speed sensor test box comprises an environment simulation box, a simulation assembly, a lifting part, a bearing plate, an installation part and a controller; the simulation assembly, the lifting part, the bearing plate, the mounting part and the controller are all mounted in an environment simulation box, and a signal receiving head is further arranged on the environment simulation box; the simulation assembly comprises a first driving part and a plurality of different rotating parts; when the speed sensor is used, the speed sensor is fixed on the mounting part, and the speed sensor on the mounting part is aligned with the rotating part; starting the first driving part to rotate the rotating part, and testing by the speed sensor; starting the lifting part to drive the bearing plate and the mounting part to move to different rotating parts, so that the next step of testing can be carried out, the testing data of the lifting part is transmitted to the signal receiving head, the signal receiving head is connected with a computer through a wire, and the testing result can be displayed on the computer; in the test process, the temperature and the humidity inside the environment simulation box are controlled through the controller, and different working environments can be provided for the speed sensor.

Description

Speed sensor test box

Technical Field

The utility model relates to a sensor detection area specifically is a speedtransmitter proof box.

Background

The speed sensor is a device commonly used in the automobile industry, is arranged at an automobile wheel shaft and is used for detecting the running speed of an automobile; after the speed sensor is produced, a test box is needed to simulate the running environment of the automobile, and meanwhile, the speed sensor is correspondingly tested to ensure the quality. The running environment of the automobile is various, two broad areas with dryness and heat and humidity and a northern area with cold and dryness are provided, and the climate environment is greatly different; on the other hand, when the automobile runs, vibration is easy to occur due to problems of uneven road surface and the like, and a speed sensor in the automobile often bears the vibration; therefore, before the product is shaped, a test box is needed to provide a climate environment and a mechanical environment to simulate an actual environment to detect the speed sensor, if the standard is not met, hidden dangers exist in the quality of the product, and the reliability of the product under various severe environmental conditions cannot be guaranteed; however, the test box for simulating the operation environment in the current market can only provide a single target for the speed sensor to perform analysis and detection, and the speed sensor cannot perform analysis and detection on a plurality of targets at the same time.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

For solving the above problem, the utility model provides a speedtransmitter proof box is equipped with a plurality of targets of examining to make speedtransmitter carry out the analysis and detection to the target of examining simultaneously.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme:

a speed sensor test box is used for simulating the working environment of a speed sensor and detecting the quality of the speed sensor and comprises an environment simulation box, a simulation assembly, a lifting part, a bearing plate, an installation part and a controller; an accommodating cavity with an outward opening is formed in the environment simulation box, and a sealing door is arranged at the opening; the environment simulation box is also provided with a signal receiving head;

the simulation assembly comprises a rotating part and a first driving part, the rotating part is provided with a plurality of groups and is rotatably arranged in the containing cavity, the first driving part is arranged outside the environment simulation box, and an output shaft of the first driving part is in driving connection with the rotating part so as to drive the rotating part to rotate;

the lifting part and the bearing plate are both arranged in the accommodating cavity, and the lifting part is used for driving the bearing plate to move up and down;

the mounting part comprises a guide rail, a fixed block and a second driving part, the guide rail is mounted on the bearing plate, the fixed block is slidably mounted on the guide rail, the second driving part is in driving connection with the fixed block so as to drive the fixed block to move along the length direction of the guide rail, and the mounting part is provided with a first position close to the rotating part and a second position close to the closed door;

the speed sensor is installed on the fixed block, and its detection end is used for detecting the slew velocity that the multiunit rotated the piece to be connected with the signal reception head through signal transmission line, the controller is installed on environmental simulation case box, in order to be used for the operation of control environmental simulation case, simulation subassembly, lift portion and installation department.

Preferably, the rotating parts are provided with two groups, the rotating parts are vertically and rotatably arranged in the accommodating cavity, each group at least comprises a main rotating part and an auxiliary rotating part, the main rotating part and the auxiliary rotating part are arranged on the same vertical line, and the main rotating part is in driving connection with the output shaft of the first driving part and is in driving connection with the auxiliary rotating part; the installation department sets up between two sets of rotation pieces.

Preferably, the main rotating part comprises a driving wheel and a testing wheel, the auxiliary rotating part comprises a driven wheel and a testing wheel, the driving wheel and the driven wheel are respectively installed at one end of the corresponding testing wheel, and the driving wheel is in driving connection with the output shaft of the first driving part and is in driving connection with the driven wheel through a transmission belt; the test wheel is provided with a plurality of sensing teeth, and the speed sensor can be aligned with the sensing teeth so as to detect the rotating speed of the test wheel by detecting the sensing teeth.

Preferably, the diameter of the driving wheel is larger than that of the driven wheel, so that the rotating speed of the driving wheel is smaller than that of the driven wheel.

Preferably, first drive division includes hot box and first motor, hot box installs on the environmental simulation case, first motor is installed in hot box, and its output shaft runs through the environmental simulation case to holding the intracavity to be connected with the action wheel drive.

Preferably, the lifting part comprises a third motor, a first screw rod and two groups of sliding rods, the two groups of sliding rods are vertically arranged on two sides of the inner part of the accommodating cavity respectively, and thread blocks and sliding blocks corresponding to the first screw rod and the sliding rods are arranged on two sides of the bearing plate; the sliding block is connected with the sliding rod in a sliding mode, the thread block is connected with the first screw in a threaded mode, and the third motor is used for driving the first screw to rotate.

Preferably, the second driving part comprises a second motor and a second screw rod, the second motor is installed at one end, close to the rotating part, of the guide rail, one end of the second screw rod is in driving connection with an output shaft of the second motor, and a rod body of the second screw rod penetrates through the fixed block and is in threaded connection with the fixed block.

Preferably, the vibration motor is further included, and the vibration motor is installed beside the second motor.

Preferably, it is equipped with the isolation chamber to hold chamber bottom, the controller includes control panel and display screen, the control panel is installed at the isolation intracavity, and with first motor, second motor, third motor and vibrating motor electric connection, the display screen is installed outside the environmental simulation case, and with control panel electric connection.

Preferably, the environment simulation box is a temperature and humidity alternating box, and the bottom of the box body is provided with a temperature and humidity controller and a temperature and humidity sensor for adjusting the temperature and humidity inside the accommodating cavity; the temperature and humidity sensor is electrically connected with the controller.

(III) advantageous effects

The utility model provides a speed sensor test box, before the test, install speed sensor on the fixed block, and move the fixed block to first position through second drive division, then be connected the signal transmission line of speed sensor tail end and signal reception head, and be connected signal reception head and computer through the wire, close the sealing door at last; furthermore, a user inputs a set program into the controller, and the controller controls the first driving part to drive the plurality of groups of rotating parts to rotate according to the program; the lifting part is controlled to start to drive the bearing plate and the mounting part to move to the corresponding rotating part, so that the detection end of the speed sensor is aligned with the rotating part, the test work can be carried out, the test data of the speed sensor is transmitted to the signal receiving head, and finally the test data is displayed on the computer; in the testing process, a user controls the temperature and the humidity inside the environment simulation box through the controller to provide different working environments for the speed sensor. The speed sensor test box is simple to operate, after the speed sensor test box is installed in place in one step, the rest detection processes are operated by the controller instead of the controller, and the automation degree is high; and multiple groups of tests can be simultaneously carried out, so that the test time is saved, and more accurate test results can be obtained after the multiple groups of test data are compared.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description, do not constitute a limitation of the invention, in which:

fig. 1 shows an overall mechanism diagram of the present invention;

fig. 2 shows a schematic diagram of the overall mechanism of the present invention;

fig. 3 shows a schematic diagram of the overall mechanism of the present invention;

fig. 4 shows a schematic view of a part of the mechanism of the present invention;

figure 5 shows a cross-sectional view of a simulation assembly of the present invention;

fig. 6 shows a schematic structural diagram of the installation part of the present invention.

In the figure: the device comprises a G speed sensor, a1 environment simulation box, a 10 accommodating cavity, a 10A isolation cavity, a 11 closed door, a 12 signal receiving head, a 2 simulation component, a 20 rotating piece, a 20A main rotating piece, a 20A1 driving wheel, a 20AB testing wheel, a 20B auxiliary rotating piece, a 20B1 driven wheel, a 21 first driving part, a 210 heat insulation box, a 211 first motor, a 212 heat radiation fan, a 3 lifting part, a 31 first screw rod, a 32 sliding rod, a 33 third motor, a 4 bearing plate, a 41 thread block, a 42 sliding block, a 5 mounting part, a 50 guide rail, a 51 fixing block, a 52 second driving part, a 521 second motor, a 522 second screw rod, a 6 controller, a 61 control plate, a 62 display screen and a 7 vibration motor.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 6, a speed sensor test box for simulating a working environment of a speed sensor G and detecting quality of the speed sensor G includes an environment simulation box 1, a simulation assembly 2, a lifting part 3, a bearing plate 4, an installation part 5 and a controller 6; an accommodating cavity 10 with an outward opening is arranged in the environment simulation box 1, and a sealing door 11 is arranged at the opening; the environment simulation box 1 is also provided with a signal receiving head 12;

the simulation assembly 2 comprises a rotating part 20 and a first driving part 21, wherein the rotating part 20 is provided with a plurality of groups and is rotatably arranged in the accommodating cavity 10, the first driving part 21 is arranged outside the environment simulation box 1, and an output shaft of the first driving part 21 is in driving connection with the rotating part 20 so as to drive the rotating part 20 to rotate;

the lifting part 3 and the bearing plate 4 are both arranged in the accommodating cavity 10, and the lifting part 3 is used for driving the bearing plate 4 to move up and down;

the mounting part 5 comprises a guide rail 50, a fixed block 51 and a second driving part 52, the guide rail 50 is mounted on the bearing plate 4, the fixed block 51 is slidably mounted on the guide rail 50, the second driving part 52 is in driving connection with the fixed block 51 to drive the fixed block 51 to move along the length direction of the guide rail 50, and the mounting part 5 is provided with a first position close to the rotating part 20 and a second position close to the closing door 11;

speed sensor G installs on fixed block 51, and its detection end is used for detecting the slew velocity that the multiunit rotated piece 20 to be connected with signal receiver 12 through signal transmission line, controller 6 installs on environmental simulation case 1 box, with the operation that is used for controlling environmental simulation case 1, simulation subassembly 2, lift portion 3 and installation department 5.

Specifically, before testing the speed sensor G, a user drives the second driving portion 52 to start through the controller 6, and then drives the fixed block 51 to move to the second position, installs the speed sensor G on the fixed block 51, drives the fixed block 51 to move to the first position through the controller 6, then connects the signal transmission line at the tail end of the speed sensor G with the signal receiving head 12, connects the signal receiving head 12 with a computer through a wire, and finally closes the closing door 11;

further, a user inputs a set program into the controller 6, the controller 6 controls the first driving part 21 to start, and the first driving part 21 simultaneously drives the plurality of groups of rotating parts 20 to rotate; then the controller 6 controls the lifting part 3 to start, so as to drive the bearing plate 4 and the mounting part 5 to move to the corresponding rotating part 20, so that the detection end of the speed sensor G is aligned with the rotating part 20, and then the test work can be carried out, and the test data is transmitted to the signal receiving head 12 and finally displayed on the computer; in the test process, a user controls the temperature and the humidity inside the environment simulation box 1 through the controller 6 to provide different working environments for the speed sensor G; on the other hand, the two sides of the environmental simulation box 1 are provided with glass plates, and the sealing door 11 is made of glass, so that the condition in the box can be observed conveniently in the test process.

In conclusion, the speed sensor test box is simple to operate, after the speed sensor test box is installed in place in one step, the rest detection processes are replaced by the controller 6, and the automation degree is high; and multiple groups of tests can be simultaneously carried out, so that the test time is saved, and more accurate test results can be obtained after the multiple groups of test data are compared.

Referring to fig. 3 to 5, two sets of the rotating members 20 are provided, and are vertically and rotatably installed in the accommodating cavity 10, each set at least includes a main rotating member 20A and an auxiliary rotating member 20B, and the main rotating member 20A and the auxiliary rotating member 20B are arranged on the same vertical line, and the main rotating member 20A is in driving connection with the output shaft of the first driving portion 21 and is in driving connection with the auxiliary rotating member 20B; the mounting portion 5 is disposed between the two sets of rotating members 20.

Specifically, two speed sensors G can be simultaneously mounted on the fixed block 51 of the mounting portion 5, and are respectively used for detecting the rotating members 20 on the left and right sides, in this embodiment, the initial position of the bearing plate 4 is located at the bottom of the accommodating cavity 10, and the bearing plate moves upward under the action of the lifting portion 3 to move the fixed block 51 between the two main rotating members 20A, and the speed sensors G on the fixed block 51 are aligned with the two main rotating members 20A for testing; after the main rotating part 20A is tested, the test platform further moves to a position between the two auxiliary rotating parts 20B so as to test the auxiliary rotating parts 20B; the test data of the main rotating part 20A and the auxiliary rotating part 20B are compared, so that the test accuracy can be further ensured.

Further, the main rotating part 20A comprises a driving wheel 20A1 and a testing wheel 20AB, the auxiliary rotating part 20B comprises a driven wheel 20B1 and the testing wheel 20AB, the driving wheel 20A1 and the driven wheel 20B1 are respectively installed at one end of the corresponding testing wheel 20AB, and the driving wheel 20A1 is in driving connection with the output shaft of the first driving part 21 and is in driving connection with the driven wheel 20B1 through a transmission belt; the test wheel 20AB is provided with a plurality of sensing teeth, and the speed sensor G can be aligned with the sensing teeth to detect the rotational speed of the test wheel 20AB by detecting the sensing teeth; the diameter of the primary pulley 20a1 is greater than the diameter of the secondary pulley 20B1 so that the rotational speed of the primary pulley 20a1 is less than the rotational speed of the secondary pulley 20B 1.

In summary, since the rotation speed of the driving wheel 20a1 is less than that of the driven wheel 20B1, the rotation speeds of the corresponding testing wheels 20AB are not consistent, and the data values tested by the speed sensor G should be inconsistent; since the theoretical rotational speed of the driving wheel 20a1 is the same as the rotational speed of the output shaft of the first driving part 21, and the theoretical rotational speed of the driven wheel 20B1 is calculated from the diameter of the driven wheel 20B1, the theoretical data is compared with the data measured by the speed sensor G during the test, so that the test result is more accurate.

Referring to fig. 4 to 5, the first driving part 21 includes a heat insulation box 210 and a first motor 211, the heat insulation box 210 is mounted on the environmental simulation box 1, the first motor 211 is mounted in the heat insulation box 210, and an output shaft thereof penetrates through the environmental simulation box 1 into the accommodating chamber 10 and is drivingly connected to the driving wheel 20a 1.

Specifically, when the accommodating cavity 10 is in a high-temperature environment, the performance of the first motor 211 may be affected by high temperature, so that the heat insulation box 210 is designed, the heat radiation fan 212 is installed inside the heat insulation box 210, the temperature inside the box body can be maintained, and the influence on the test result due to unstable operation of the first motor 211 is avoided.

Referring to fig. 1 to 3, the lifting unit 3 includes a third motor 33, a first screw 31 and a slide bar 32, the slide bar 32 is provided with two sets, and vertically provided at two sides inside the accommodating cavity 10, and two sides of the bearing plate 4 are provided with a thread block 41 and a slide block 42 corresponding to the first screw 31 and the slide bar 32; the sliding block 42 is connected with the sliding rod 32 in a sliding mode, and the thread block 41 is connected with the first screw 31 in a threaded mode; during the test, the third motor 33 drives the first screw 31 to rotate, so as to drive the bearing plate 4 to move along the length direction of the sliding rod 32.

Referring to fig. 4 to 6, the second driving part 52 includes a second motor 521 and a second screw 522, the second motor 521 is installed at one end of the guide rail 50 close to the rotating member 20, one end of the second screw 522 is drivingly connected to an output shaft of the second motor 521, and a rod body thereof penetrates through the fixed block 51 and is threadedly connected to the fixed block 51; when the fixing device is used, the second motor 521 drives the second screw 522 to rotate, so that the fixing block 51 can be driven to move along the length direction of the guide rail 50.

Referring to fig. 4-6, the vibration motor 7 is further included, and the vibration motor 7 is installed beside the second motor 521; considering that the automobile can vibrate in the driving process and the speed sensor G in the automobile can vibrate therewith, the design of the vibration motor 7 can simulate the use state of the speed sensor G when vibrating; in the test process, the vibration motor 7 is started to vibrate the fixed block 51.

Referring to fig. 1 to 3, an isolation chamber 10A is disposed at the bottom of the accommodating chamber 10, the controller 6 includes a control board 61 and a display screen 62, the control board 61 is installed in the isolation chamber 10A and electrically connected to the first motor 211, the second motor 521, the third motor 33 and the vibration motor 7, and the display screen 62 is installed outside the environmental simulation box 1 and electrically connected to the control board 61; the environment simulation box 1 is a temperature and humidity alternating box, and a temperature and humidity controller and a temperature and humidity sensor for adjusting the temperature and humidity in the accommodating cavity 10 are arranged in the box body; the temperature and humidity sensor is electrically connected with the controller 6,

in particular, the isolation chamber 10A can prevent the control board 61 from being damaged; a user can control the first motor 211, the second motor 521, the third motor 33 and the vibration motor 7 to operate through the display screen 62, or control a temperature and humidity controller in the temperature and humidity alternating box to adjust the temperature and humidity in the accommodating cavity 10, so as to simulate the environment of the automobile in daily use; the temperature and humidity data will also be displayed on the display screen 62.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present application unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

In the description of the present application, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are used for convenience of description and simplicity of description only, and in the case of not making a reverse description, these directional terms do not indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of protection of the present application is not to be construed as being limited.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A speed sensor test box is used for simulating the working environment of a speed sensor (G) and detecting the quality of the speed sensor (G), and is characterized by comprising an environment simulation box (1), a simulation assembly (2), a lifting part (3), a bearing plate (4), an installation part (5) and a controller (6); an accommodating cavity (10) with an outward opening is formed in the environment simulation box (1), and a closed door (11) is arranged at the opening; the environment simulation box (1) is also provided with a signal receiving head (12);

the simulation assembly (2) comprises a rotating part (20) and a first driving part (21), wherein the rotating part (20) is provided with a plurality of groups and is rotatably arranged in the accommodating cavity (10), the first driving part (21) is arranged outside the environment simulation box (1), and an output shaft of the first driving part (21) is in driving connection with the rotating part (20) so as to drive the rotating part (20) to rotate;

the lifting part (3) and the bearing plate (4) are both arranged in the accommodating cavity (10), and the lifting part (3) is used for driving the bearing plate (4) to move up and down;

the mounting part (5) comprises a guide rail (50), a fixing block (51) and a second driving part (52), the guide rail (50) is mounted on the bearing plate (4), the fixing block (51) is slidably mounted on the guide rail (50), and the second driving part (52) is in driving connection with the fixing block (51) so as to drive the fixing block (51) to move along the length direction of the guide rail (50) and is provided with a first position close to the rotating part (20) and a second position close to the closed door (11);

speed sensor (G) is installed on fixed block (51), and its detection end is used for detecting the slew velocity that the multiunit rotated piece (20) to be connected with signal reception head (12) through signal transmission line, controller (6) are installed on environmental simulation case (1) box, in order to be used for controlling the operation of environmental simulation case (1), simulation subassembly (2), lift portion (3) and installation department (5).

2. A speed sensor test chamber according to claim 1, wherein the rotating member (20) is provided in two sets, each set is vertically and rotatably installed in the accommodating chamber (10), each set comprises at least one main rotating member (20A) and one auxiliary rotating member (20B), the main rotating member (20A) and the auxiliary rotating member (20B) are arranged on the same vertical line, and the main rotating member (20A) is in driving connection with the output shaft of the first driving portion (21) and is in driving connection with the auxiliary rotating member (20B); the mounting portion (5) is disposed between the two sets of rotating members (20).

3. A speed sensor test box according to claim 2, wherein the main rotor (20A) comprises a driving wheel (20A1) and a testing wheel (20AB), the auxiliary rotor (20B) comprises a driven wheel (20B1) and a testing wheel (20AB), the driving wheel (20A1) and the driven wheel (20B1) are respectively installed at one end of the corresponding testing wheel (20AB), and the driving wheel (20A1) is in driving connection with the output shaft of the first driving part (21) and is in driving connection with the driven wheel (20B1) through a transmission belt; the test wheel (20AB) is provided with a plurality of sensing teeth, and the speed sensor (G) can be aligned with the sensing teeth so as to detect the rotating speed of the test wheel (20AB) by detecting the sensing teeth.

4. A speed sensor test chamber according to claim 3, wherein the diameter of the driving wheel (20a1) is larger than the diameter of the driven wheel (20B1) so that the rotational speed of the driving wheel (20a1) is smaller than the rotational speed of the driven wheel (20B 1).

5. A speed sensor test chamber according to claim 3, wherein the first driving part (21) comprises a heat insulation box (210) and a first motor (211), the heat insulation box (210) is mounted on the environment simulation box (1), the first motor (211) is mounted in the heat insulation box (210), and an output shaft of the first motor penetrates through the environment simulation box (1) to the accommodating cavity (10) and is in driving connection with the driving wheel (20a 1).

6. The speed sensor test box according to claim 1, wherein the lifting part (3) comprises a third motor (33), a first screw (31) and a slide rod (32), two groups of the slide rods (32) are vertically arranged on two sides of the inner part of the accommodating cavity (10), and a thread block (41) and a slide block (42) corresponding to the first screw (31) and the slide rod (32) are arranged on two sides of the bearing plate (4); the sliding block (42) is connected with the sliding rod (32) in a sliding mode, the thread block (41) is connected with the first screw rod (31) in a threaded mode, and the third motor (33) is used for driving the first screw rod (31) to rotate.

7. A speed sensor test box according to claim 1, wherein the second driving part (52) comprises a second motor (521) and a second screw (522), the second motor (521) is installed at one end of the guide rail (50) close to the rotating part (20), one end of the second screw (522) is in driving connection with an output shaft of the second motor (521), and a rod body of the second screw penetrates through the fixed block (51) and is in threaded connection with the fixed block (51).

8. A speed sensor test box according to claim 7, characterized by further comprising a vibration motor (7), wherein the vibration motor (7) is installed at the side of the second motor (521).

9. A speed sensor test box according to any one of claims 5-8, characterized in that an isolation chamber (10A) is arranged at the bottom of the accommodating chamber (10), the controller (6) comprises a control board (61) and a display screen (62), the control board (61) is installed in the isolation chamber (10A) and is electrically connected with the first motor (211), the second motor (521), the third motor (33) and the vibration motor (7), and the display screen (62) is installed outside the environment simulation box (1) and is electrically connected with the control board (61).

10. The speed sensor test box according to claim 9, wherein the environment simulation box (1) is a temperature and humidity alternating box, and a temperature and humidity controller and a temperature and humidity sensor for adjusting the temperature and humidity inside the accommodating cavity (10) are arranged inside the box body; the temperature and humidity sensor is electrically connected with the controller (6).