CN111982484B - Speed-division pressing type automobile key life detection system - Google Patents
Speed-division pressing type automobile key life detection system Download PDFInfo
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- CN111982484B CN111982484B CN202010837444.6A CN202010837444A CN111982484B CN 111982484 B CN111982484 B CN 111982484B CN 202010837444 A CN202010837444 A CN 202010837444A CN 111982484 B CN111982484 B CN 111982484B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H19/00—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion
- F16H19/02—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion
- F16H19/06—Gearings comprising essentially only toothed gears or friction members and not capable of conveying indefinitely-continuing rotary motion for interconverting rotary or oscillating motion and reciprocating motion comprising flexible members, e.g. an endless flexible member
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Abstract
The invention discloses a speed-division pressing type automobile key life detection system which can simulate a process of pressing a key by hand, divide the pressing speed into a speed before contact and a speed after contact, truly simulate a pressing scene to test the automobile key, simultaneously, the pressing distance after contact is certain, the effectiveness of each pressing can be ensured, the accuracy and the truth of the test height are kept, meanwhile, the reverse movement homing can be completed after one test, a secondary test is carried out, the effectiveness and the continuity of the key life detection test are ensured, the detection efficiency is high, the power of an automobile key life detection device is provided by a motor, the motor can keep rotating in the same countryside direction, the inertia of forward and reverse rotation can be reduced, and the test accuracy is further improved.
Description
Technical Field
The invention relates to the technical field of automobile detection, in particular to a speed-division pressing type automobile key life detection system.
Background
The automobile key enables common parts in an automobile, and in order to keep the service life of the automobile key, the automobile key needs to be detected so as to ensure that the key is in a qualified service life range.
In a system for testing the service life of a key of an automobile, a cylinder is generally used for driving a pressure head to press the key. In the cylinder key life test system, a cylinder is connected with a key pressure head through a certain structure, and the reciprocating motion of the cylinder drives the key pressure head to reciprocate, so that the pressing and the replying of the key are realized, and the test of the key is completed. However, this testing process is too mechanized, in the actual use process, when a general human hand presses an automobile key, the speed of the general human hand approaching the key is different from the speed of pressing the key, the fixed-stroke mechanized key testing result often cannot accurately reflect the real key application environment, and in the testing process, as the key is pressed and restored for many times, the elastic element for returning the key is fatigued, thereby causing the key to return inaccurately, and the mechanical fixed-stroke pressing may cause the situation of not pressing in place, thereby causing the situation of misjudgment, and affecting the key testing accuracy.
Disclosure of Invention
The invention aims to solve the problem that the fixed stroke mechanized key test result in the prior art is inaccurate, and provides a speed-division pressing type automobile key service life detection system which improves the automobile key service life detection accuracy.
In order to achieve the purpose, the invention adopts the following technical scheme:
the speed-division pressing type automobile key life detection system comprises a conveying belt, an upper driving wheel and a lower driving wheel for driving the conveying belt, a pressing block fixedly connected with the conveying belt, a first gear and a second gear for driving the upper driving wheel to rotate, and a third gear for driving the lower driving wheel to rotate.
Specifically, the fixed cover of first gear connects in first pivot, the one end of first pivot sets up first friction disc, and the second gear is fixed to be cup jointed in the second pivot, the one end of second pivot sets up the second friction disc, first pivot and second pivot swivelling joint in moving body, the moving body and the bracing piece sliding connection who is fixed in the frame, the fixed first cylinder that is used for promoting the moving body and removes that sets up of frame.
Furthermore, the upper driving wheel is fixedly sleeved on the upper driving shaft, the upper driving shaft is rotatably connected with the rack, a friction surface corresponding to the first friction plate is arranged on the end face of one end of the upper driving shaft, and a friction surface corresponding to the second friction plate is arranged on the end face of the other end of the upper driving shaft.
The first cylinder can push the moving body, the first rotating shaft and the second rotating shaft, so that the first friction plate at one end of the first rotating shaft or the second friction plate at one end of the second rotating shaft is in contact combination with the friction surface of the upper driving shaft, and the first rotating shaft drives the upper driving shaft to rotate or the second rotating shaft drives the upper driving shaft to rotate. Of course, the above states do not preclude the upward-going state of the upper drive shaft from being in contact with any of the friction plates.
Further, a first transmission assembly used for transmitting power and forming a speed difference between the first gear and the second gear is arranged between the first gear and the second gear.
Preferably, the first transmission assembly comprises a first transmission gear, a second transmission gear and a connecting shaft for connecting the first transmission gear and the second transmission gear, the first transmission gear is meshed with the first gear, and the second transmission gear is meshed with the second gear. The connecting shaft is parallel to the first rotating shaft and the second rotating shaft and is rotationally connected to the moving body, and the connecting shaft can move synchronously with the first rotating shaft and the second rotating shaft to keep the meshing between the first transmission gear and the first gear and the meshing between the second transmission gear and the second gear.
Through first transmission assembly, first gear on the first pivot can drive first transmission gear, connecting axle and second transmission gear and rotate, and second transmission gear can drive second gear and second pivot and rotate, realizes the power sharing between first gear and the second rotation gear, realizes the corotation of present conveyer belt simultaneously.
The first gear, the second rotating gear, the first transmission gear and the second transmission gear with proper tooth numbers are selected, so that the speed difference between the first gear and the second gear can be realized, and the working conditions of the moving speed of the pressing block close to the key before contacting the key and the moving speed of the pressing block after contacting the key can be met.
Preferably, one side of pressing the piece sets up the extension rod that down extends, the lower extreme of extension rod is fixed to be set up with the flexible contact piece of button contact, subtracts to press the button and strike.
The upper surface of button sets up the response piece, and when flexible contact piece contact response piece, the response piece gives feedback signal and gives first cylinder for change the operating condition of first cylinder.
Preferably, the flexible contact piece includes utricule, empty section of thick bamboo and elastic membrane, the utricule is fixed to be bonded in the lower extreme of extension rod, the inside and the empty section of thick bamboo intercommunication of utricule, the inside elastic membrane that sets up of empty section of thick bamboo is sealed with empty section of thick bamboo. The utricule is behind the contact button, and the surface receives pressure can take place deformation, and the inside liquid of utricule can extrude the elastic membrane, makes the elastic membrane take place deformation, alleviates and presses down the impact, and softness and elasticity of this structure simulation hand increase the button and press the authenticity of test.
Preferably, this car button life-span detecting system still includes and is used for realizing power transmission and direction pivoted second drive assembly between first gear and the third gear, second drive assembly includes jackshaft and the third pivot of swivelling joint frame respectively, first pivot is fixed still cup joints the initiative synchronizing wheel, the outside slip of jackshaft cup joints passive synchronizing wheel, be connected through the hold-in range between initiative synchronizing wheel and the passive synchronizing wheel, the first axle sleeve of slew bearing swivelling joint is passed through to one side of initiative synchronizing wheel, the second axle sleeve of slew bearing swivelling joint is passed through to the homonymy of passive synchronizing wheel, first axle sleeve passes through synchronizing bar fixed connection with the second axle sleeve for when first pivot slides, keep the synchronous slip of initiative synchronizing wheel and passive synchronizing wheel.
Furthermore, an intermediate gear is fixedly sleeved at one end of the intermediate shaft, a third gear is fixedly sleeved on the third rotating shaft, the intermediate gear and the third gear are bevel gears which are arranged in parallel, a reversing bevel gear for transmitting power is arranged between the intermediate gear and the third gear, the reversing bevel gear is respectively meshed with the intermediate gear and the third gear, the reversing bevel gear is rotatably connected with the rack, and the reversing bevel gear is used for transmitting power between the intermediate gear and the third gear and rotating in a direction.
Furthermore, a coaxial push rod is arranged in the third gear and is connected with the third gear in a sliding mode, a combination block is fixedly arranged at one end of the push rod, and a third friction plate is arranged on the end face of one end of the combination block; the fixed cover of lower drive wheel connects in lower drive shaft, lower drive shaft and frame swivelling joint, the one end terminal surface of lower drive shaft sets up the friction surface that corresponds with the third friction disc, the lower extreme of the other end swivelling joint connecting rod of lower drive shaft, the upper end fixed connection second cylinder's of connecting rod work end, second cylinder fixed connection frame.
The second cylinder can promote the push rod, makes the third friction disc of push rod one end combination piece combine with the friction surface contact of lower drive shaft, realizes that first pivot passes through the jackshaft and the drive of third pivot drive down the drive shaft rotates, and wherein first pivot turns to opposite with the third pivot, realizes the reversal of conveyer belt, plays the operating mode that can correspond the press block and keep away from the button.
In the automobile key life detection system, the automobile key life detection process is as follows:
a1: when the pressing block is at the initial position, the first cylinder pushes the moving body to move, so that the first friction plate at one end of the first rotating shaft is in contact combination with the friction surface of the driving shaft, the first rotating shaft drives the upper driving shaft and the upper driving wheel to rotate in the forward direction, and the pressing block on the conveying belt moves towards the direction close to the press key;
a2: when the flexible contact block of pressing the briquetting lower extreme contacts with the button, the response piece gives feedback signal and gives car button life-span detecting system's controller, the work of first cylinder of controller control, first cylinder promotes the removal body and removes, the friction surface of drive shaft is left to the first friction disc of first pivot one end, the second friction disc of second pivot one end combines with the friction surface contact of last drive shaft, the transmission of first pivot and last drive shaft is cut off, the transmission between second pivot and the last drive shaft is connected, first pivot drives the second pivot through first transmission assembly and rotates, then the second pivot drives drive shaft and last drive wheel forward rotation, press the briquetting on the conveyer belt with different speeds continue to move a section distance towards the direction that is close to the button, realize pressing the action that the briquetting pressed the button.
A3: when the stroke of pressing the button according to the briquetting is accomplished, first cylinder promotes the removal of moving part, the second friction disc of second pivot one end leaves the friction surface of last drive shaft, the transmission between second pivot and the last drive shaft is cut off, the upload state at drive shaft both ends combines this moment, simultaneously the second cylinder promotes the push rod, the third friction disc that makes push rod one end combine the piece combines with the friction surface contact of drive shaft down, the third pivot is connected with drive shaft transmission down this moment, first pivot drives drive shaft and lower drive wheel antiport through second transmission assembly's jackshaft and third pivot, press the briquetting on the conveyer belt and remove towards the direction of keeping away from the button, the realization is pressed the briquetting and is left the action of button.
And A4, when the pressing block returns to the initial position, the second air cylinder pushes the push rod to make the third friction plate of the combining block at one end of the push rod leave the friction surface of the lower driving shaft, and then the step A is repeated.
Preferably, the outer wall of the intermediate shaft is provided with a coaxial spline, and the inner ring of the driven synchronizing wheel is provided with a spline groove matched with the spline.
Preferably, the radial section of the push rod is not circular, so that the push rod and the third rotating shaft are prevented from rotating.
The invention has the beneficial effects that:
1. the automobile key life detection system can simulate the process of pressing the key by hand, the pressing speed is divided into the speed before contact and the speed after contact, the automobile key is tested by truly simulating the pressing scene, and meanwhile, the pressing distance after contact is fixed, so that the effectiveness of each pressing can be ensured, and the accuracy and the authenticity of the test height are kept;
2. the automobile key life detection system can realize different moving speeds in the process that the pressing block approaches the key, can finish the reverse moving homing after the primary test, performs the secondary test, and ensures the validity, the accuracy and the continuity of the key life detection test;
3. the power that the button was kept away from to the pressing block that car button life-span detecting system was close to the button and pressing the button is provided by a motor to the pressing block, and driving motor's direction of rotation is unchangeable, and reducible positive and negative rotatory inertia further promotes experimental degree of accuracy, increases the life of motor.
Drawings
FIG. 1 is a schematic structural diagram of a key life detection system of an automobile;
FIG. 2 is a schematic structural diagram of a drive shaft of the key life detection system of the present vehicle;
FIG. 3 is a schematic structural diagram of a reversing bevel gear of the automobile key life detection system;
FIG. 4 is a schematic structural diagram of a contact block of the key life detection system of the present vehicle;
FIG. 5 is a schematic structural diagram of a cross section of a push rod of the automobile key life detection system;
FIG. 6 is a connection diagram of the controller of the automobile key life detection system;
fig. 7 is a working process diagram of the automobile key life detection system.
In the figure: 1. a conveyor belt; 2. an upper drive wheel; 3. an upper drive shaft; 4. a first rotating shaft; 5. a first gear; 6. a first drive gear; 7. a connecting shaft; 8. a second transmission gear; 9. a second rotating shaft; 10. a second gear; 11. a drive motor; 12. a moving body; 13. a support bar; 14. a first cylinder; 15. a driving synchronizing wheel; 16. a synchronous belt; 17. a synchronous driven wheel; 18. a synchronization lever; 19. an intermediate shaft; 20. an intermediate gear; 21. a third rotating shaft; 22. a third gear; 23. a push rod; 24. a second cylinder; 25. a combining block; 26. a limiting block; 27. a pressing block; 28. an extension rod; 29. a contact block; 30. pressing a key; 31. an induction sheet; 32. a lower drive shaft; 33. a lower drive wheel; 34. a connecting rod; 35. a reversing bevel gear; 151. a first bushing; 171. a second shaft sleeve 291, a balloon; 292. an empty cartridge; 293. an elastic film.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-2, the key life detecting system for the automobile comprises a conveyor belt 1, an upper driving wheel 2 and a lower driving wheel 33 for driving the conveyor belt 1, a pressing block 27 fixedly connected with the conveyor belt 1, a first gear 5 and a second gear 10 for driving the upper driving wheel 2 to rotate, and a third gear 22 for driving the lower driving wheel 33 to rotate.
Specifically, the first gear 5 is fixedly sleeved on the first rotating shaft 4, a first friction plate is arranged at one end of the first rotating shaft 4, the second gear 10 is fixedly sleeved on the second rotating shaft 9, a second friction plate is arranged at one end of the second rotating shaft 9, the first rotating shaft 4 and the second rotating shaft 9 are rotatably connected to the moving body 12, the moving body 12 is slidably connected with a supporting rod 13 fixed to a rack, and the rack is fixedly provided with a first air cylinder 14 used for pushing the moving body 12 to move.
Further, the upper driving wheel 2 is fixedly sleeved on an upper driving shaft 3, the upper driving shaft 3 is rotatably connected with the rack, a friction surface corresponding to the first friction plate is arranged on one end face of the upper driving shaft 3, and a friction surface corresponding to the second friction plate is arranged on the other end face of the upper driving shaft 3.
The first cylinder 14 can push the moving body 12, the first rotating shaft 4 and the second rotating shaft 9, so that a first friction plate at one end of the first rotating shaft 4 or a second friction plate at one end of the second rotating shaft 9 is in contact combination with a friction surface of the upper driving shaft 3, and the first rotating shaft 4 drives the upper driving shaft 3 to rotate or the second rotating shaft 9 drives the upper driving shaft 3 to rotate. Of course, the above state does not exclude the friction surface of the upper drive shaft 3 from being in contact with any friction plate.
Further, a first transmission assembly for transmitting power and forming a speed difference between the first gear 5 and the second gear 10 is arranged between the first gear 5 and the second gear 10.
In this embodiment, the first transmission assembly includes a first transmission gear 6, a second transmission gear 8 and a connecting shaft 7 connecting the first transmission gear 6 and the second transmission gear 8, the first transmission gear 6 is engaged with the first gear 5, and the second transmission gear 8 is engaged with the second gear 10. The connecting shaft 7 is parallel to the first rotating shaft 4 and the second rotating shaft 9, the connecting shaft 7 is rotatably connected to the moving body 12, the connecting shaft 7 can synchronously move with the first rotating shaft 4 and the second rotating shaft 9, and the meshing between the first transmission gear 6 and the first gear 5 and the meshing between the second transmission gear 8 and the second gear 10 are kept.
Through first transmission assembly, first gear 5 on the first pivot 4 can drive first transmission gear 6, connecting axle 7 and second transmission gear 8 and rotate, and second transmission gear 8 can drive second gear 10 and second pivot 9 and rotate, realizes the power sharing between first gear 5 and the second gear 10 that changes, realizes the corotation of present conveyer belt 1 simultaneously.
When the first gear 5, the second rotating gear 10, the first transmission gear 6 and the second transmission gear 8 with proper tooth numbers are selected, the speed difference between the first gear 5 and the second gear 10 can be realized, and the working conditions of the moving speed of the pressing block close to the key before contacting the key and the moving speed of the pressing block after contacting the key can be met.
In this embodiment, an extension rod 28 extending downward is disposed on one side of the pressing block 27, and a flexible contact block 29 contacting with the key 30 is fixedly disposed at the lower end of the extension rod 28, so as to reduce the pressing impact on the key 30.
The upper surface of the key 30 is provided with a sensing piece 31, when the flexible contact block 29 contacts the sensing piece 31, the sensing piece 31 is a contact sensor, the sensing piece 31 gives a feedback signal to a controller of the automobile key life detection system, the controller is connected with the first air cylinder 14 and the second air cylinder 24, and the controller can control the first air cylinder 14 and the second air cylinder 24 to change the working states of the first air cylinder 14 and the second air cylinder 24.
Referring to fig. 4, in the present embodiment, the flexible contact block 29 includes a capsule 291, a hollow cylinder 292 and an elastic membrane 293, the capsule 291 is fixedly adhered to the lower end of the extension rod 28, the interior of the capsule 291 is communicated with the hollow cylinder 292, and the elastic membrane 293 is disposed inside the hollow cylinder 292 to seal the hollow cylinder 292. Utricule 291 is behind contact key 30, and the surface is stressed and can takes place deformation, and the inside liquid of utricule 291 can extrude elastic membrane 293, makes elastic membrane 293 take place deformation, alleviates and presses down the impact, and softness and elasticity of this structure simulation hand increase the authenticity that the test was pressed to the button
In this embodiment, this car button life-span detecting system still includes the second drive assembly that is used for realizing power transmission and direction pivoted between first gear 5 and the third gear 22, the second drive assembly includes jackshaft 19 and the third pivot 21 of swivelling joint frame respectively, first pivot 4 still fixed cup joints initiative synchronizing wheel 15, the outside slip of jackshaft 19 cup joints passive synchronizing wheel 17, in this embodiment, the outer wall of jackshaft 19 sets up coaxial spline, passive synchronizing wheel 17 inner circle set up with spline assorted spline groove.
Referring to fig. 2 and 3, the driving synchronizing wheel 15 and the driven synchronizing wheel 17 are connected through a synchronous belt 16, one side of the driving synchronizing wheel 15 is rotatably connected with a first shaft sleeve 151 through a slewing bearing, the same side of the driven synchronizing wheel 17 is rotatably connected with a second shaft sleeve 171 through a slewing bearing, and the first shaft sleeve 151 and the second shaft sleeve 171 are coaxial with corresponding shafts thereof but do not contact with each other. The first shaft sleeve 151 and the second shaft sleeve 171 are fixedly connected through the synchronizing rod 18, and are used for keeping the driving synchronizing wheel 15 and the driven synchronizing wheel 17 synchronously sliding when the first rotating shaft 4 slides.
Further, referring to fig. 3, one end of the intermediate shaft 19 is fixedly sleeved with an intermediate gear 20, the third rotating shaft 21 is fixedly sleeved with a third gear 22, the intermediate gear 20 and the third gear 22 are bevel gears arranged in parallel, a reversing bevel gear 35 for transmitting power is arranged between the intermediate gear 20 and the third gear 22, the reversing bevel gear 35 is respectively engaged with the intermediate gear 20 and the third gear 22, the reversing bevel gear 35 is rotatably connected with the frame, and the reversing bevel gear 35 is used for transmitting power between the intermediate gear 20 and the third gear 22 and forming directional rotation.
Further, a coaxial and sliding connection push rod 23 is arranged inside the third gear 22, referring to fig. 3 and 5, in this embodiment, a radial cross section of the push rod 23 is square, so as to prevent the push rod 23 and the third rotating shaft 21 from rotating. A combining block 25 is fixedly arranged at one end of the push rod 23, and a third friction plate is arranged on the end face of one end of the combining block 25; the lower driving wheel 33 is fixedly sleeved on the lower driving shaft 32, the lower driving shaft 32 is rotatably connected with the frame, a friction surface corresponding to a third friction plate is arranged on the end surface of one end of the lower driving shaft 32, the other end of the lower driving shaft 32 is rotatably connected with the lower end of the connecting rod 34, the upper end of the connecting rod 34 is fixedly connected with the working end of the second cylinder 24, and the second cylinder 24 is fixedly connected with the frame.
The second cylinder 24 can push the push rod 23, so that the third friction plate of the combining block 25 at one end of the push rod 23 is in contact combination with the friction surface of the lower driving shaft 32, the first rotating shaft 4 is driven by the intermediate shaft 19 and the third rotating shaft 21 to rotate the lower driving shaft 32, the first rotating shaft 4 and the third rotating shaft 21 are in opposite rotation directions, the reverse rotation of the conveyor belt 1 is realized, and the working condition that the press block is far away from the key can be met.
In this embodiment, referring to fig. 6, a position sensor and a displacement sensor are disposed on the pressing block 27 for sensing the position and the moving distance of the pressing block 27. The position sensor and the displacement sensor are both connected with the controller.
Referring to fig. 7, in the system for detecting the life of the automobile key in the embodiment, the process of detecting the life of the automobile key is as follows:
a1: when the pressing block is at the initial position, the first air cylinder 14 pushes the moving body 12 to move, so that the first friction plate at one end of the first rotating shaft 4 is in contact combination with the friction surface of the driving shaft 3, and in this state, the first rotating shaft 4 drives the upper driving shaft 3 and the upper driving wheel 2 to rotate in the forward direction, and the pressing block 27 on the conveyor belt 1 moves towards the direction close to the key 30;
a2: when the flexible contact block 29 at the lower end of the pressing block 27 contacts the key 30, the sensing piece 31 gives a feedback signal to a controller of the automobile key life detection system, the controller controls the first air cylinder 14 to work, the first air cylinder 14 pushes the moving body 12 to move, the first friction plate at one end of the first rotating shaft 4 is separated from the friction surface of the driving shaft 3, the second friction plate at one end of the second rotating shaft 9 is in contact combination with the friction surface of the upper driving shaft 3, the transmission between the first rotating shaft 4 and the upper driving shaft 3 is cut off, the transmission between the second rotating shaft 9 and the upper driving shaft 3 is connected, the first rotating shaft 4 drives the second rotating shaft 9 to rotate through the first transmission component, then the second rotating shaft 9 drives the upper driving shaft 3 and the upper driving wheel 2 to rotate forward, and the pressing block 27 on the conveyor belt 1 moves for a certain distance in the direction approaching the key 30 at different speeds, so as to realize the action of pressing the key 30 by the pressing block 27.
A3: the displacement sensor senses the completion of the stroke of the pressing block 27 for pressing the key 30, the controller controls the first air cylinder 14 to push the moving body 12 to move, the second friction plate at one end of the second rotating shaft 9 is separated from the friction surface of the upper driving shaft 3, the transmission between the second rotating shaft 9 and the upper driving shaft 3 is cut off, at the moment, the uploading states at two ends of the driving shaft 3 are combined, meanwhile, the second air cylinder 24 pushes the push rod 23, the third friction plate of the combining block 25 at one end of the push rod 23 is in contact combination with the friction surface of the lower driving shaft 32, at the moment, the third rotating shaft 21 is in transmission connection with the lower driving shaft 32, the first rotating shaft 4 drives the lower driving shaft 32 and the lower driving wheel 33 to reversely rotate through the intermediate shaft 19 and the third rotating shaft 21 of the second transmission assembly, the pressing block 27 on the conveyor belt.
A4: the displacement sensor senses that the pressing block 27 returns to the initial position, the controller controls the second air cylinder 24 to push the push rod 23, so that the third friction plate of the coupling block 25 at one end of the push rod 23 is separated from the friction surface of the lower driving shaft 32, and then step a1 is repeated.
The detection of the service life of the automobile key is completed in such a circulation manner. The automobile key life detection system in the embodiment can realize different moving speeds in the process that the pressing block approaches the key, can finish reverse moving homing after primary test, performs secondary test, and ensures the validity, accuracy, continuity and authenticity of the key life detection test; and the power that the button was close to and was kept away from to the button according to the pressure piece of car button life-span detecting system is provided by a motor, and driving motor's direction of rotation is unchangeable, reducible positive and negative rotatory inertia, promotes experimental degree of accuracy and the life of motor.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (7)
1. The system for detecting the service life of the speed-division pressing type automobile key is characterized by comprising a conveyor belt (1), an upper driving wheel (2) and a lower driving wheel (33) for driving the conveyor belt (1), a pressing block (27) fixedly connected with the conveyor belt (1), a first gear (5) and a second gear (10) for driving the upper driving wheel (2) to rotate, and a third gear (22) for driving the lower driving wheel (33) to rotate;
the first gear (5) is fixedly sleeved on the first rotating shaft (4), one end of the first rotating shaft (4) is provided with a first friction plate, the second gear (10) is fixedly sleeved on the second rotating shaft (9), one end of the second rotating shaft (9) is provided with a second friction plate, and a first transmission assembly for transmitting power and forming a speed difference between the first gear (5) and the second gear (10) is arranged between the first gear (5) and the second gear (10);
the first rotating shaft (4) and the second rotating shaft (9) are rotatably connected to a moving body (12), the moving body (12) is in sliding connection with a supporting rod (13) fixed to a rack, and a first air cylinder (14) used for pushing the moving body (12) to move is fixedly arranged on the rack;
the upper driving wheel (2) is fixedly sleeved on the upper driving shaft (3), the upper driving shaft (3) is rotatably connected with the rack, a friction surface corresponding to the first friction plate is arranged on the end face of one end of the upper driving shaft (3), and a friction surface corresponding to the second friction plate is arranged on the end face of the other end of the upper driving shaft (3).
2. The system for detecting the service life of the keys of the speed-division pressing type automobile according to claim 1, wherein the first transmission assembly comprises a first transmission gear (6), a second transmission gear (8) and a connecting shaft (7) connected with the first transmission gear (6) and the second transmission gear (8), the first transmission gear (6) is meshed with the first gear (5), the second transmission gear (8) is meshed with the second gear (10), and the connecting shaft (7) is rotatably connected with the moving body (12).
3. The system for detecting the service life of the push button type automobile button in the speed-dividing type manner as claimed in claim 1 or 2, wherein an extension rod (28) extending downwards is arranged on one side of the push button block (27), and a flexible contact block (29) in contact with the button (30) is fixedly arranged at the lower end of the extension rod (28).
4. The push button type automobile key life detection system according to claim 3, wherein the flexible contact block (29) comprises a capsule (291), a hollow cylinder (292) and an elastic membrane (293), the capsule (291) is fixedly adhered to the lower end of the extension rod (28), the interior of the capsule (291) is communicated with the hollow cylinder (292), and the elastic membrane (293) is arranged inside the hollow cylinder (292) to seal the hollow cylinder (292).
5. The system for detecting the service life of the keys of the differential pressing type automobile according to claim 1 or 2, further comprising an intermediate shaft (19) and a third rotating shaft (21) which are respectively and rotatably connected with the frame, wherein the first rotating shaft (4) is further fixedly sleeved with a driving synchronizing wheel (15), a driven synchronizing wheel (17) is slidably sleeved outside the intermediate shaft (19), the driving synchronizing wheel (15) and the driven synchronizing wheel (17) are connected through a synchronous belt (16), one side of the driving synchronizing wheel (15) is rotatably connected with a first shaft sleeve (151), the same side of the driven synchronizing wheel (17) is rotatably connected with a second shaft sleeve (171), and the first shaft sleeve (151) and the second shaft sleeve (171) are fixedly connected through a synchronous rod (18);
the fixed cover of jackshaft (19) one end connects intermediate gear (20), third pivot (21) fixed sleeve connects third gear (22), intermediate gear (20) and third gear (22) are parallel arrangement's bevel gear, set up the reverse bevel gear (35) of transmission power between intermediate gear (20) and third gear (22), third gear (22) inside sets up coaxial and sliding connection push rod (23), the fixed combination piece (25) that sets up of one end of push rod (23), the one end terminal surface of combination piece (25) sets up the third friction disc, lower drive wheel (33) fixed cover is connect in lower drive axle (32), lower drive axle (32) and frame swivelling joint, the one end terminal surface of lower drive axle (32) sets up the friction surface that corresponds with the third friction disc, the other end swivelling joint connecting rod (34) of lower drive axle (32), the connecting rod (34) is fixedly connected with the working end of the second air cylinder (24), and the second air cylinder (24) is fixedly connected with the rack.
6. The push type automobile key life detection system of the speed division according to claim 5, wherein the outer wall of the intermediate shaft (19) is provided with a coaxial spline, and the inner ring of the driven synchronizing wheel (17) is provided with a spline groove matched with the spline.
7. The system for detecting the service life of the push button keys of the differential pressing type automobile as claimed in claim 5, wherein the radial section of the push rod (23) is not circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN201828647U (en) * | 2010-07-26 | 2011-05-11 | 万向电动汽车有限公司 | Press key function test device |
| CN103207368B (en) * | 2012-01-12 | 2017-06-27 | 名硕电脑(苏州)有限公司 | Push-button service-life detection device and push-button service-life detection method |
| CN205655995U (en) * | 2016-04-19 | 2016-10-19 | 伟创力制造（珠海）有限公司 | Button life -span testing arrangement |
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