CN221056480U - Automobile crankshaft rotation speed sensor and cam position sensor test equipment - Google Patents
Automobile crankshaft rotation speed sensor and cam position sensor test equipment Download PDFInfo
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- CN221056480U CN221056480U CN202323180194.1U CN202323180194U CN221056480U CN 221056480 U CN221056480 U CN 221056480U CN 202323180194 U CN202323180194 U CN 202323180194U CN 221056480 U CN221056480 U CN 221056480U
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- 238000012360 testing method Methods 0.000 title claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000001105 regulatory effect Effects 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 13
- 230000033228 biological regulation Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 description 14
- 230000035945 sensitivity Effects 0.000 description 5
- 238000001514 detection method Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005355 Hall effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
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Abstract
The utility model relates to the technical field of test equipment and discloses test equipment for an automobile crankshaft rotating speed sensor and a cam position sensor, which comprises a cabinet, a motor speed regulating box, an oscilloscope and a test fixture, wherein the motor speed regulating box, the oscilloscope and the test fixture are sequentially arranged above the cabinet from left to right, a power supply is arranged in the cabinet, the test fixture comprises a mounting plate, a rotating mechanism and a clamping mechanism which are arranged on the mounting plate, the mounting plate is arranged on the upper surface of the cabinet, the clamping mechanism is arranged on the front side of the rotating mechanism, the rotating mechanism comprises a driving motor and a mounting head for placing a test wheel, the mounting head is connected to the output end of the driving motor, the motor speed regulating box is electrically connected with the driving motor, the clamping mechanism comprises an adjusting assembly, an adjusting seat and a clamping block, the adjusting seat is arranged at the output end of the adjusting assembly, and the clamping block is fixedly connected to the adjusting seat.
Description
Technical Field
The utility model relates to the technical field of test equipment, in particular to test equipment for a rotating speed sensor and a cam position sensor of an automobile crankshaft.
Background
With the development of the automobile industry in China, the application of the automobile sensor is more and more widespread, and more components are electronically controlled due to the wide use of the automobile sensor. Camshaft position sensors, etc. are very critical sensors in automobile engine control systems, which determine the operating state and performance of the engine and maintain the safety of automobile braking.
The camshaft position sensor and the crankshaft position sensor are one type of signal generator that utilizes the hall effect. The crankshaft position sensor (CKP) is a magnetic induction sensor, the test wheel on the crankshaft has 58 slots, each spaced 6 °, the last slot being wider for generating a synchronization pulse, and as the crankshaft rotates, the slots in the variable reluctance rotor will change the sensor's magnetic field, generating an induced voltage pulse for identifying the direction of rotation of the crankshaft. The camshaft position sensor, also called "synchronization signal sensor", is a sensing device for acquiring a camshaft position signal.
After the production of the camshaft position sensor and the crankshaft position sensor is completed, performance detection is required, and in view of the performance detection, researchers in the field design automobile crankshaft rotation speed sensors and cam position sensor test equipment.
Disclosure of utility model
The technical problem to be solved by the utility model is to overcome the defects of the prior art, and provide the testing equipment for the automobile crankshaft speed sensor and the cam position sensor, which are convenient to use and strong in universality, so that the sensitivity of the automobile crankshaft speed sensor and the cam position sensor can be conveniently tested.
The technical scheme of the utility model is as follows: the utility model provides an automobile crankshaft rotation speed sensor and cam position sensor test equipment, is in including rack, from left to right setting gradually motor speed adjusting box, oscilloscope and the test fixture of rack top, be provided with the power in the rack, the test fixture includes the mounting panel, sets up slewing mechanism and clamping mechanism on the mounting panel, the mounting panel sets up the upper surface of rack, clamping mechanism sets up slewing mechanism's front side, slewing mechanism includes driving motor and the installation head that is used for placing the test wheel, the installation head is connected on the driving motor output, motor speed adjusting box with driving motor electric connection, clamping mechanism includes adjusting part, sets up adjusting part output's adjustment seat and the clamping piece that is used for clamping sensor, clamping piece fixed connection is in on the adjustment seat.
According to the scheme, the mounting head is used for mounting the test wheel, the clamping block is used for clamping the sensor, the motor speed regulating box is used for regulating the rotating speed of the driving motor, the variable frequency motor is used for simulating the rotating speed of the automobile engine under different working conditions, the oscillograph is used for detecting the sensitivity of the sensor through the output oscillograph, the test fixture is used for clamping the test gear and the sensor, the rotating mechanism is used for driving the gear on the mounting head to rotate, the power supply provides power for the rotating mechanism, after the clamping mechanism clamps the sensor, the driving motor drives the test wheel to rotate, and the oscillograph detected by the sensor is output by the oscillograph, so that the sensitivity of the sensor is judged, and observation is facilitated.
The driving motor is electrically connected with the power supply, the driving motor is connected to the bottom of the mounting plate through a connecting block, and the output end of the driving motor is connected with the mounting head through a connecting sleeve. It follows that the connection kit is used for transmitting the output shaft rotation of the driving motor to the test wheel, so that the test wheel is driven to rotate.
The clamping block is provided with a vertical adjusting hole, an adjusting screw hole is formed in the clamping block above the vertical adjusting hole, and an adjusting screw is arranged in the adjusting screw hole. Therefore, the adjusting seat is used for limiting and fixing the camshaft position sensor, the adjusting component is used for adjusting the distance between the camshaft position sensor and the mounting head, the gears with different sizes on the mounting head are placed, and the universality of clamping is high.
The adjusting assembly comprises a fixed block and a ball screw, wherein the fixed block and the ball screw are fixed on the end face of the cabinet, the end part of the ball screw penetrates through the fixed block and is connected with a rotating handle, an installation block is arranged on the ball screw in a sliding mode, the adjusting seat is fixed on the installation block, guide rods are arranged on the two sides of the ball screw in parallel, one end of each guide rod is connected to the adjusting seat, the other end of each guide rod penetrates through an installation hole on the corresponding fixed block, and a fastener is connected between the rotating handle and the ball screw. Therefore, the rotating handle is electrified through rotation of the ball screw, the mounting block is used for converting the rotation of the ball screw into linear motion, and the mounting block is used for electrifying the adjusting block to realize linear displacement on the upper surface of the cabinet.
The rotary mechanism is provided with a protection shell, the upper end face of the protection shell is provided with a protection cover body, one side of the protection cover body is hinged with the protection shell, and the other end of the protection cover body is connected with a plug seat on the protection shell through a plug end. It follows that the protective housing and the protective cover are used for safety protection during testing.
The cabinet upper end face is provided with control button, control button sets up the front side of motor speed adjusting box, the cabinet is in the below of the side of power all is provided with places the chamber. It follows from this that control button is used for realizing driving motor's rotational speed regulation through the motor speed regulating box, place the chamber and be used for placing different types of test wheel.
The sensors on the clamping block can be a crankshaft rotating speed sensor and a cam position sensor, and the sensors are electrically connected with the oscilloscope. Therefore, when the driving motor drives the test wheel to rotate, the sensor transmits signals to the oscilloscope to display, and the sensitivity of the sensor is measured by comparing a oscillogram on the oscilloscope with a standard chart.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
fig. 3 is a schematic structural view of the clamping mechanism of the present utility model.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
As shown in fig. 1 to 3, the utility model relates to an automobile crankshaft rotation speed sensor and cam position sensor testing device, which comprises a cabinet 1, a motor speed regulating box 2, an oscilloscope 3 and a testing fixture, wherein the motor speed regulating box 2, the oscilloscope 3 and the testing fixture are sequentially arranged above the cabinet 1 from left to right, a power supply 4 is arranged in the cabinet 1, a control key 8 is arranged on the front side of the motor speed regulating box 2, at least two layers of the cabinet 1 are arranged, spare parts such as a test wheel and the like can be placed at an idle position on the cabinet 1, the testing fixture comprises a mounting plate 5, a rotating mechanism 6 and a clamping mechanism 7 which are arranged on the mounting plate 5, the mounting plate 5 is arranged on the upper surface of the cabinet 1, the clamping mechanism 7 is arranged on the front side of the rotating mechanism 6, the rotating mechanism 6 comprises a driving motor 61 and a mounting head 62 for placing the test wheel, the mounting head 62 is connected to the output end of the driving motor 61, the motor speed regulating box 2 is electrically connected with the driving motor 61, the clamping mechanism 7 comprises an adjusting component 71, an adjusting block 72 arranged at the output end of the adjusting component 71 and a clamping block 72 which is used for being connected with a sensor 73 and a sensor 73 (the sensor 73 and a clamping block 73 is electrically connected with the sensor 73 and the sensor 73).
In this embodiment, the clamping block 73 is provided with a crankshaft rotation speed sensor, the crankshaft rotation speed sensor is disposed close to the test wheel, the reference number of the sensor is 100, the reference number of the test wheel is 200, the driving motor 61 is a variable frequency motor, the motor speed adjusting box 2 is used for realizing rotation adjustment, the sensor 100 is close to the mounting head 62 for clamping, and is used for testing accuracy of a result, and the driving motor 61 is electrically connected with the power supply 4.
The driving motor 61 is electrically connected with the power supply 4, the driving motor 61 is connected to the bottom of the mounting plate 5 through a connecting block 63, and an output end of the driving motor 61 is connected with the mounting head 62 through a connecting sleeve 64. In this embodiment, the driving motor 61 transmits power to the test wheel to drive the test wheel to rotate.
The clamping block 73 is provided with a vertical adjusting hole 74, the clamping block 73 is provided with an adjusting screw hole above the vertical adjusting hole 74, and an adjusting screw 75 is arranged in the adjusting screw hole. In this embodiment, the adjusting screw 75 is inserted into the vertical adjusting hole 74 at the end face of the clamping block 73, the sensor is placed in the vertical adjusting hole 75, and the adjustment of different heights of the sensor is achieved by adjusting different heights of the adjusting screw 75, so that gear parts with different heights are suitable.
The adjusting component 71 comprises a fixed block 711 and a ball screw 712, wherein the fixed block 711 and the ball screw 712 are fixed on the end face of the cabinet 1, the end part of the ball screw 712 penetrates through the fixed block 711 to be connected with a rotating handle 713, an installation block 714 is arranged on the ball screw 712 in a sliding mode, the adjusting seat 72 is fixed on the installation block 714, guide rods 715 are arranged on two sides of the ball screw 712 in parallel, one end of each guide rod is connected to the adjusting seat 72, the other end of each guide rod penetrates through an installation hole 7111 on the fixed block 711 to be arranged, and a fastening piece 716 is connected between the rotating handle 713 and the ball screw 712. In this embodiment, the rotating handle 713 includes an annular hand wheel and a handle rod disposed on the annular hand wheel, scale marks uniformly distributed at intervals are annularly disposed on an outer circumference of the annular hand wheel, and the rotating handle drives the ball screw 712 to rotate when rotating, so as to drive the mounting block 714 on the ball screw 712 to perform linear motion, thereby adjusting a distance between the adjusting seat 72 and the rotating mechanism 6, and facilitating testing of different test wheels.
The rotating mechanism 6 is provided with a protective shell 65, the upper end surface of the protective shell 65 is provided with a protective cover 66, one side of the protective cover 66 is hinged with the protective shell 65, and the other end of the protective cover 66 is connected with a socket 651 on the protective shell 65 through a socket end 661. In the present embodiment, the front side of the protective case 65 is provided with an opening toward the clamping block 73.
The cabinet 1 is provided with a control key 8 at the front side of the motor speed regulating box 2, and the cabinet 1 is provided with at least two layers. In this embodiment, the control keys 8 include a power key on/off key and an emergency stop key.
The working flow of the utility model is as follows: the test wheel 200 is placed on the mounting head, the sensor 100 is placed in the vertical adjusting hole 74 on the clamping block 73, limiting fixation of the sensor 100 is achieved through the adjusting screw 75, the rotating handle 713 is rotated, the ball screw 712 rotates to drive the mounting block 714 to linearly move, the distance between the sensor 100 and the rotating mechanism 6 is adjusted, the distance between the sensor 100 and the test wheel 200 on the mounting head 62 is appropriate, the protective cover body 66 on the protective housing 65 is put down, the inserting end 661 is pressed, the inserting end 661 is fixed with the inserting seat 651, fixation of the protective cover body 66 on the protective housing 65 is achieved, the oscillograph 3 displays a oscillograph, the oscillograph detected by the sensor 100 is output through the display screen on the oscillograph 3 to be compared with a test standard, and accordingly the sensitivity of the sensor 100 is judged. The motor speed regulating box 2 is used for regulating the rotation speed of the driving motor 61, so that the regulation of different rotation speeds of the test wheel is realized. The test wheel 200 on the mounting head 62 is driven by the driving motor 61 to rotate, the signal teeth 210 on the test wheel 200 sequentially pass through the sensor 100, pulse signals output by the magnetic field change of the signal teeth are sent to the oscilloscope 3 for waveform display, and when the motor speed regulating box 2 regulates speed, the higher the rotating speed of the test wheel 200 is, the higher the frequency of the output pulse signals is, and the shorter the period of waveforms displayed on the display screen of the oscilloscope 2 is. Conversely, the slower the rotational speed of the test wheel 200, the lower the frequency of the output pulse signal and the longer the period of the waveform displayed on the display screen of the oscilloscope 3.
The magnitude of the hall voltage is in direct proportion to the strength of a magnetic field perpendicular to the hall element, and the stronger the magnetic field is, the higher the hall voltage is; the weaker the magnetic field, the lower the hall voltage. In the signal detection device provided by the embodiment of the application, the signal teeth on the test wheel are the main reasons for the change of the magnetic field intensity. As the air gap between the sensor and the signal teeth on the test wheel changes, the reluctance of the magnetic circuit changes. When the signal teeth are close to the sensor, magnetic force lines are concentrated and pass through the Hall element, the magnetic field is enhanced, larger Hall voltage can be generated, and the signal teeth are amplified, shaped and processed and then output to be high level or low level set for the sensor body; conversely, when the signal teeth are far away from the sensor body, the magnetic field is weakened, the low level or the high level set for the sensor body is output, so that a square wave signal output is formed, and the square wave signal has a corresponding relation with an air gap between the signal teeth and the sensor. The embodiment of the application realizes the detection of the functions of the crankshaft rotation speed sensor and the camshaft position sensor based on the corresponding relation.
Finally, it should be emphasized that the above description is not intended to limit the utility model, but rather that various changes and modifications can be made by those skilled in the art without departing from the spirit and principles of the utility model, and any modifications, equivalents, improvements, etc. are intended to be included within the scope of the present utility model.
Claims (7)
1. Automobile crankshaft rotation speed sensor and cam position sensor test equipment, its characterized in that: including rack (1), from left to right set gradually motor speed regulation case (2), oscilloscope (3) and test fixture in rack (1) top, be provided with power (4) in rack (1), test fixture includes mounting panel (5), sets up slewing mechanism (6) and clamping mechanism (7) on mounting panel (5), mounting panel (5) set up the upper surface of rack (1), clamping mechanism (7) set up the front side of slewing mechanism (6), slewing mechanism (6) include driving motor (61) and be used for placing test wheel's installation head (62), installation head (62) are connected on driving motor (61) output, motor speed regulation case (2) with driving motor (61) electric connection, clamping mechanism (7) are in adjusting seat (72) and clamping piece (73) that are used for clamping sensor of adjusting component (71) output, clamping piece (73) fixed connection is in on adjusting seat (72).
2. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the driving motor (61) is electrically connected with the power supply (4), the driving motor (61) is connected to the bottom of the mounting plate (5) through a connecting block (63), and the output end of the driving motor (61) is connected with the mounting head (62) through a connecting sleeve (64).
3. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the clamping block (73) is provided with a vertical adjusting hole (74), an adjusting screw hole is formed in the clamping block (73) above the vertical adjusting hole (74), and an adjusting screw (75) is arranged in the adjusting screw hole.
4. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the adjusting component (71) comprises a fixed block (711) and a ball screw (712) which are fixed on the end face of the cabinet (1), the end part of the ball screw (712) penetrates through the fixed block (711) to be connected with a rotating handle (713), an installation block (714) is arranged on the ball screw (712) in a sliding mode, the adjusting seat (72) is fixed on the installation block (714), guide rods (715) are arranged on two sides of the ball screw (712) in parallel, one end of each guide rod is connected to the adjusting seat (72), the other end of each guide rod penetrates through an installation hole (7111) in the corresponding fixed block (711), and a fastener (716) is connected between the rotating handle (713) and the ball screw (712).
5. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the rotary mechanism (6) is provided with a protection shell (65), the upper end face of the protection shell (65) is provided with a protection cover body (66), one side of the protection cover body (66) is hinged with the protection shell (65), and the other end of the protection cover body is connected with a plug seat (651) on the protection shell (65) through a plug end (661).
6. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the cabinet (1) is provided with a control key (8) at the front side of the motor speed regulating box (2), and the cabinet (1) is at least provided with two layers.
7. The automobile crankshaft speed sensor and cam position sensor test apparatus of claim 1, wherein: the sensors on the clamping block (73) can be a crankshaft rotating speed sensor and a cam position sensor, and the sensors are electrically connected with the oscilloscope (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323180194.1U CN221056480U (en) | 2023-11-24 | 2023-11-24 | Automobile crankshaft rotation speed sensor and cam position sensor test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323180194.1U CN221056480U (en) | 2023-11-24 | 2023-11-24 | Automobile crankshaft rotation speed sensor and cam position sensor test equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221056480U true CN221056480U (en) | 2024-05-31 |
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ID=91200579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323180194.1U Active CN221056480U (en) | 2023-11-24 | 2023-11-24 | Automobile crankshaft rotation speed sensor and cam position sensor test equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221056480U (en) |
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2023
- 2023-11-24 CN CN202323180194.1U patent/CN221056480U/en active Active
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