CN216050670U - Detection apparatus for profile of tooth electromagnetic spring working characteristic - Google Patents
Detection apparatus for profile of tooth electromagnetic spring working characteristic Download PDFInfo
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- CN216050670U CN216050670U CN202122704215.XU CN202122704215U CN216050670U CN 216050670 U CN216050670 U CN 216050670U CN 202122704215 U CN202122704215 U CN 202122704215U CN 216050670 U CN216050670 U CN 216050670U
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Abstract
The utility model discloses a detection device for the working characteristics of a tooth-shaped electromagnetic spring, which comprises an electromagnetic spring stator and an electromagnetic spring rotor which are coaxially arranged, and an electromagnetic coil which is positioned between the electromagnetic spring stator and the electromagnetic spring rotor and sleeved on the electromagnetic spring rotor, and also comprises: the device can control the rotor and the stator of the electromagnetic spring to generate uniform relative displacement in the detection process, and has the advantages of controllable speed, stable structure and small integral volume.
Description
Technical Field
The utility model relates to the field of detection devices, in particular to a detection device for the working characteristics of a toothed electromagnetic spring.
Background
The spring is used as a common mechanical part, has rich forms and wide application, wherein the electromagnetic spring is a novel spring with adjustable rigidity. Common electromagnetic springs can be divided into tooth-shaped electromagnetic springs and magnetic pole-opposite electromagnetic springs according to different structural forms. The application aims at the tooth-shaped structural type electromagnetic spring, which is hereinafter referred to as a tooth-shaped electromagnetic spring. The tooth-shaped electromagnetic spring is simple in structure and comprises a stator, a rotor and an electromagnetic coil, and a circle of gap is reserved between the inner diameter of the stator and the outer diameter of the rotor. The magnetic field generator has the following working principle that after the excitation coil is electrified, a magnetic field is formed in a closed magnetic circuit formed by the stator gear ring, the stator yoke, the air gap, the rotor gear ring and the rotor yoke. When the mover is axially displaced relative to the stator, the air-gap magnetic circuit is displaced due to the tooth-form mismatch, and an electromagnetic force attempting to restore the mover's teeth to the original position, i.e., attempting to cancel the relative displacement, is generated in the axial direction, and exhibits a sinusoidal-like characteristic during the continuous axial movement of the mover. The user can change the rigidity of the tooth-shaped electromagnetic spring by changing the size of the direct current led into the electromagnetic coil, thereby achieving the purpose of adjustable rigidity. The spring with adjustable stiffness is a novel spring with adjustable stiffness, and has been widely applied to important engineering devices such as vibration absorbers.
In order to better perform performance inspection on the electromagnetic spring in the production, processing and application links, a performance detection device suitable for the electromagnetic spring is correspondingly needed, and the performance detection of the electromagnetic spring mainly focuses on the relationship between the displacement and the electromagnetic force, namely the change rule of the rigidity.
The spring performance detection device is not lacked in the prior art, but on the one hand, a part of spring performance detection devices are directed at the performance detection of the traditional spiral spring, for example, the utility model discloses a small-size adjustable spring elastic rigidity detection device, the device can be used for detecting the rigidity of the common spiral spring by using a weight with certain mass and combining scale marks on the device, and the spring performance detection device can obviously not be used for the rigidity detection of the tooth-shaped electromagnetic spring. On the other hand, although the performance of various springs including electromagnetic springs can be detected by customizing the special chuck in the conventional large universal material testing machine or spring testing machine on the market, the purchase cost of the universal material testing machine or spring testing machine and the customization and installation cost of the special chuck are not negligible, and the purchase of the testing machine is not a good choice for users who only need to perform spring experiments in a short period and a small amount and do not have long-term use requirements. For example, the utility model with the publication number CN214066452U discloses a series of spring rate testing machines, which is a typical large-scale spring testing device, and the size and cost problems are not negligible.
Therefore, it is necessary to design a device for detecting the operating characteristics of the toothed electromagnetic spring, which can detect the relationship between the electromagnetic force and the relative axial displacement of the stator mover, and can output and store the detected displacement and force data, in the operating characteristic curve of the toothed electromagnetic spring.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model aims to solve the defects of the prior art and provides a detection device for the working characteristics of a tooth-shaped electromagnetic spring, which can control the uniform relative displacement between a rotor and a stator of the electromagnetic spring in the detection process, and has the advantages of controllable speed, stable structure and small overall volume.
The technical scheme is as follows: in order to achieve the above object, the present invention provides a device for detecting the operating characteristics of a tooth-shaped electromagnetic spring, which comprises an electromagnetic spring stator and an electromagnetic spring rotor coaxially mounted, and an electromagnetic coil located between the electromagnetic spring stator and the electromagnetic spring rotor and sleeved on the electromagnetic spring rotor, and further comprises: the electromagnetic spring testing device comprises a supporting mechanism for supporting an electromagnetic spring stator and an electromagnetic spring rotor, a detection platform positioned below the supporting mechanism, a driving mechanism, a transmission mechanism and a detection mechanism which are arranged on the detection platform, and a terminal control end connected with the driving mechanism and the detection mechanism;
the driving mechanism drives the transmission mechanism to operate so as to control the electromagnetic spring stator mounted on the supporting mechanism to move axially, and the detection mechanism sends the displacement of the electromagnetic spring stator and the axial force applied to the electromagnetic spring rotor to the final control end.
As a further preferred aspect of the present invention, the support mechanism includes: the electromagnetic spring rotor detection device comprises two clamping blocks with stepped shafts, a central screw rod penetrating through the clamping blocks and a locking nut sleeved on the central screw rod, wherein steps on the two clamping blocks are respectively clamped at two end parts of the electromagnetic spring rotor;
the clamping blocks are in clearance fit with the rod body of the central screw rod, and the electromagnetic spring rotor is clamped by the two clamping blocks together from top to bottom;
one end of the central screw rod is provided with a flange, the other end of the central screw rod is provided with threads, the central screw rod and the electromagnetic spring rotor are coaxially arranged, so that the electromagnetic spring rotor is in a static state relative to the detection platform in the detection process, and the central screw rod flange belongs to one part of the central screw rod and is used for pressing the upper clamping block.
As a further preferred aspect of the present invention, the drive mechanism includes: the motor fixing screw fixes the motor on the motor base, the motor base fixing screw fastens the motor base on the detection platform, and the small bevel gear fixedly arranged at the output end of the motor is matched with the transmission mechanism to work;
as a further preferred aspect of the present invention, the transmission mechanism includes: the rotary motion of the large bevel gear is converted into the vertical motion of the threaded sleeve through the thread transmission between the large bevel gear and the small bevel gear;
the upper thrust bearing and the lower thrust bearing are respectively pressed on the upper surface and the lower surface of the large bevel gear to axially fix the large bevel gear, the guide base is provided with a guide post and a guide ring, the guide post is positioned on the inner side of the guide ring, and the guide ring on the guide base is abutted against the large bevel gear to radially fix the large bevel gear;
the threaded sleeve is sleeved on the guide posts, the two guide posts are arranged at an interval of 180 degrees and used for preventing the threaded sleeve from rotating circumferentially, threads arranged on the outer surface of the threaded sleeve are matched and connected with internal threads arranged on the large bevel gear, and the large bevel gear rotates to drive the threaded sleeve to move axially;
the clamping screw penetrates through the threaded sleeve and then abuts against the outer surface of the electromagnetic spring stator to clamp the threaded sleeve and the electromagnetic spring stator together, and the protective cover radially clamped on the outer surface of the threaded sleeve is fixed on the detection platform through the peripheral fixing screws.
In a further preferred embodiment of the present invention, the protective cover is a 270 ° to 300 ° rotary body for protecting members such as a large bevel gear and a large and small thrust bearing.
As a further preferred aspect of the present invention, the upper end of the threaded sleeve is radially provided with two threaded through holes spaced 180 ° apart for screwing in the clamping screw.
As a further preferred aspect of the present invention, the detection mechanism includes: the force sensor is fixed on the detection platform through a force sensor fixing screw, and the displacement sensor is fixed on the displacement sensor bracket;
the force sensor is used for detecting the axial force applied to the electromagnetic spring rotor supported by the central screw rod;
the electromagnetic spring stator is driven to move axially through the threaded sleeve, and the axial displacement of the electromagnetic spring stator is detected by a displacement sensor which is abutted against the electromagnetic spring stator.
As a further preferable feature of the present invention, after the displacement sensor vertically passes through the head of the "Z-shaped" displacement sensor bracket, the displacement sensor is fixed by a displacement sensor fixing screw passing through the head of the displacement sensor bracket and fastened with a displacement sensor fixing nut, and the tail of the displacement sensor bracket is fixed on the detection platform by a bracket fixing screw.
As a further preferred feature of the present invention, the material of the clamping block, the central screw and the threaded sleeve is aluminum, so as to ensure that the measuring device will not interfere with the magnetic field inside the electromagnetic spring during the measuring process, and the electromagnetic spring depends on the electromagnetic field between the stator and the mover, so that the main components in the device are made of aluminum or aluminum alloy.
As a further preferred embodiment of the present invention, the terminal control end includes an acquisition module, a converter and a computer end, and a force sensor harness port on the force sensor transmits the acquired axial force signal received by the electromagnetic spring rotor to the computer end via the acquisition module; the displacement sensor is used for connecting the collected axial displacement signal of the electromagnetic spring stator to a computer end through a USB-to-485 converter.
The displacement sensor is an SDVB20-15 model displacement sensor produced by Shenzhen Shangxin science and technology development Limited company, is pen-shaped, and a measuring head of the displacement sensor has a rebound resetting function and a measuring range of 15 mm. The signal port of the displacement sensor can be connected with a computer end through a USB-to-485 converter, the computer end is provided with LVDT sensor upper computer software matched with the displacement sensor, and the software can display upward displacement data of the electromagnetic spring stator measured by the displacement sensor in real time. The displacement sensor is clamped by a clamp, a measuring head is abutted against the upper surface of the electromagnetic spring stator and is vertical to the upper surface, and an operator can store curves and data points of displacement and time.
The force sensor adopts a tension-compression bidirectional force sensor produced by Kistler company and has the function of tension-compression bidirectional force measurement. The force sensor is fixed on the detection platform through a circle of 8 peripheral force sensor fixing screws, a threaded through hole is formed in the middle of the force sensor, and the force sensor is in threaded connection with one end of the central screw rod, so that after a rotor fixedly connected with the central screw rod is subjected to axial tension or pressure generated by an electromagnetic field, the stress can be transmitted to the force sensor through the central screw rod. The wire harness port of the force sensor belongs to a part of the force sensor, and the force sensor is arranged in the whole device and is inconvenient to wire, so that a cable of the sensor is led out after penetrating through a reserved long groove on a detection platform and is connected to an acquisition Module, the acquisition Module is processed and converted and then transmitted to computer-end software to perform visual display on a measured force value, wherein the model of the pressure sensor is Kistler 4576A20, the model of the acquisition Module is KiDAQ Module 5517A, and the model of the computer-end visual software is Kistudio Lab R4.1. The pressure sensor transmits the pressure to the acquisition module and then transmits the pressure to the computer-side visualization software, so that a force fluctuation curve graph is displayed in real time, and an operator can store a force-time curve and data points.
The electromagnetic spring stator is a rotating body, internal teeth corresponding to the electromagnetic spring rotor are arranged in the electromagnetic spring stator, the inner diameter of the electromagnetic spring stator is slightly larger than the outer diameter of the electromagnetic spring rotor, and the electromagnetic spring stator and the electromagnetic spring rotor are coaxially matched. The wire outlet hole is formed in the middle of one side of the electromagnetic spring stator, two wire ends of the electromagnetic coil power-on end of the electromagnetic coil conveniently penetrate through the through hole in the middle of the stator to be connected with the adjustable power supply, and the electromagnetic coil power-on end is a flexible wire harness, so that the axial movement of the stator cannot be influenced. When the electromagnetic spring rotor and the stator are in an initial state, the upper surface of the electromagnetic spring rotor is flush with the upper surface of the stator, and after the coil is electrified, a magnetic field is formed in a closed magnetic circuit formed by the stator gear ring, the stator yoke, the air gap, the rotor gear ring and the rotor yoke. When the mover is axially displaced relative to the stator, the air-gap magnetic circuit is displaced due to the tooth-form mismatch, and an electromagnetic force attempting to restore the mover's teeth to the original position, i.e., attempting to cancel the relative displacement, is generated in the axial direction, and exhibits a sinusoidal-like characteristic during the continuous axial movement of the mover. The operator can change the electromagnetic rigidity by changing the direct current led into the electromagnetic coil, thereby achieving the purpose of adjustable rigidity.
The electromagnetic spring rotor is a rotating body, external teeth corresponding to the electromagnetic spring stator are arranged on the outer portion of the electromagnetic spring rotor, the inner diameter of the electromagnetic spring stator is slightly larger than the outer diameter of the electromagnetic spring rotor, and the electromagnetic spring stator and the electromagnetic spring rotor are in coaxial fit. When the electromagnetic spring rotor and the stator are in an initial state, the upper surface of the electromagnetic spring rotor is flush with the upper surface of the stator, and after the coil is electrified, a magnetic field is formed in a closed magnetic circuit formed by the stator gear ring, the stator yoke, the air gap, the rotor gear ring and the rotor yoke. When the mover is axially displaced relative to the stator, the air-gap magnetic circuit is displaced due to the tooth-form mismatch, and an electromagnetic force attempting to restore the mover's teeth to the original position, i.e., attempting to cancel the relative displacement, is generated in the axial direction, and exhibits a sinusoidal-like characteristic during the continuous axial movement of the mover. The operator can change the electromagnetic rigidity by changing the direct current led into the electromagnetic coil, thereby achieving the purpose of adjustable rigidity.
Principle of operation
The device is placed on a desktop, the force sensor is connected to a computer end through the acquisition module, and the displacement sensor is connected to the computer end through the USB-to-485 converter. After the electromagnetic spring stator is clamped, the wire outlet port of the electromagnetic coil is connected with an adjustable power supply, the power of the device is derived from a motor, the motor is controlled by a motor driver, and the rotating speed of the motor can be adjusted manually. The adjustable power supply and the motor are both electrified.
In an initial state, the electromagnetic spring stator is flush with the upper surface of the electromagnetic spring rotor, a measuring head of the displacement sensor is just abutted against the upper surface of the electromagnetic spring stator, and the readings of the force sensor and the displacement sensor are 0. When the detection is started, the adjustable power supply supplies a certain proper current to the electromagnetic coil, the output shaft of the motor rotates, the electromagnetic spring stator rises at a constant speed through gear pair transmission consisting of the small bevel gear and the large bevel gear and thread pair transmission consisting of the thread sleeve and the internal thread of the large bevel gear, the displacement sensor detects rising displacement of the electromagnetic spring stator, the force sensor detects axial force applied to the electromagnetic spring rotor in the process, and at the moment, the computer end can check a force curve along with time and a displacement curve along with time in real time. After the detection is finished, the motor rotates reversely, so that the electromagnetic spring stator descends and resets, and the measuring head of the displacement sensor always abuts against the upper surface of the electromagnetic spring stator in the whole process.
The tooth-shaped electromagnetic spring is fixed by the electromagnetic spring stator in the normal working process, the electromagnetic spring rotor axially moves relative to the electromagnetic spring stator to exert the spring characteristic, the electromagnetic spring rotor is fixed in the detection device, the electromagnetic spring stator axially moves relative to the electromagnetic spring rotor, so that the working characteristic of the electromagnetic spring is detected, in practice, the relative movement relation between the electromagnetic spring stator and the electromagnetic spring rotor is not changed, and the detected working characteristic of the electromagnetic spring is consistent with the working characteristic in the normal working process.
An operator can store the time-varying data of the force and the time-varying data of the displacement from the computer end for analysis and processing, and the variation relation between the electromagnetic spring force follow-up and the relative displacement between the stators can be obtained through data integration, so that the working characteristic or the characteristic curve of the electromagnetic spring is finally obtained.
Has the advantages that: compared with the prior art, the detection device for the working characteristics of the tooth-shaped electromagnetic spring has the following advantages that:
(1) the device drives an electromagnetic spring stator to move in the vertical direction by fixing an electromagnetic spring rotor and by means of gear pair transmission and thread pair transmission, so that axial relative displacement is generated between the electromagnetic spring stator and the electromagnetic spring rotor, and electromagnetic force and displacement data of the spring device are output in real time through a force sensor and a displacement sensor;
(2) the device can control the rotor and the stator of the electromagnetic spring to generate uniform relative displacement in the detection process, the speed is controllable, the structure is stable, the whole size of the device is small, and the space and the cost are saved for a large-scale spring testing machine and a universal material testing machine.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a full sectional view of the present invention;
FIG. 3 is a front view of the present invention;
FIG. 4 is an isometric view of the present invention from another perspective;
FIG. 5 is a schematic view of the internal structure of the present invention;
FIG. 6 is an enlarged view of portion A of FIG. 5;
FIG. 7 is a schematic diagram of a force sensor according to the present invention;
FIG. 8 is a schematic view of the protective cover of the present invention;
FIG. 9 is a schematic view of the structure of the guide base of the present invention;
FIG. 10 is a schematic view of the structure of the clamping block of the present invention;
FIG. 11 is a schematic view of the construction of the threaded sleeve of the present invention;
FIG. 12 is a top view of the detection platform of the present invention;
FIG. 13 is an isometric view of the present invention during testing;
fig. 14 is a characteristic curve diagram of the electromagnetic spring having a tooth shape obtained by integrating the detection results in one cycle.
Detailed Description
The utility model is further elucidated with reference to the figures and examples.
As shown in fig. 1 to 12, the present invention provides a device for detecting the operating characteristics of a tooth-shaped electromagnetic spring, which comprises: the device comprises a detection platform 1, a motor 2, a motor fixing screw 3, a motor base 4, a motor base fixing screw 5, a small bevel gear 6, a protective cover 7, an upper thrust bearing 8, a large bevel gear 9, a lower thrust bearing 10, a guide base 11, a peripheral fixing screw 12, a clamping block 13, a central screw 14, a locking nut 15, a force sensor 16, a force sensor fixing screw 17, a threaded sleeve 18, a clamping screw 19, a displacement sensor 20, a displacement sensor fixing screw 21, a displacement sensor fixing nut 22, a displacement sensor support 23 and a support fixing screw 24.
Examples
The method comprises the following steps: assembling and debugging
Firstly, the detection platform 1 is placed on a table top, eight through holes of the force sensor 16 are aligned to the inner ring thread through hole 101 on the detection platform 1, the azimuth angle of the force sensor 16 is adjusted, then eight force sensor fixing screws 17 are screwed in sequence, the force sensor 16 is fixedly connected to the detection platform 1, then a part of a wire harness port 161 of the force sensor is hidden and arranged in a wire harness cable preformed groove 103 of the detection platform 1, and a part of the wire harness port 161 of the force sensor is left outside for signal transmission. Then the guide base 11 is placed, the through holes on the periphery of the guide base 11 are aligned with the four outer ring thread through holes 102 on the detection platform 1, then a lower thrust bearing 10 is coaxially placed on the guide base 11, then a threaded sleeve 18 is in threaded fit with the large bevel gear 9, the two axial blind holes of the threaded sleeve 18 are then inserted in alignment with the guide posts 111 of the guide base 11, then the threaded sleeve 18 and the large bevel gear 9 are integrally and coaxially arranged above the lower thrust bearing 10 to ensure that the lower surface of the large bevel gear 9 is contacted with the upper surface of the lower thrust bearing 10, then, an upper thrust bearing 8 is coaxially placed on the large bevel gear 9, and then the protective cover 7 is coaxially placed above the upper thrust bearing 8, so that three through holes of the protective cover 7 are aligned with three of the four outer ring threaded through holes 102 on the detection platform 1, and the gap of the protective cover 7 faces the arrangement position of the motor 2. And then, the four peripheral fixing screws 12 sequentially penetrate through the peripheral through holes of the protective cover 7 and the guide base 11 and are fixed on the detection platform 1. Then, a clamping block 13, an electromagnetic spring rotor 200 (including an electromagnetic coil 300 wound in a rotor groove), an electromagnetic spring stator 100 and another clamping block 13 are sequentially arranged on the central screw 14 in a penetrating manner, then a locking nut 15 is screwed in from the threaded end part of the central screw 14, when the electromagnetic coil is installed, the electrifying end 301 of the electromagnetic coil 300 penetrates out of a side hole of the electromagnetic spring stator 100 for being connected with an adjustable power supply, and then the locking nut 15 is locked. Then an operator holds the electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring rotor 200 and the electromagnetic coil 300), the central screw 14, the two clamping blocks 13 and the locking nut 15 by hand, aligns the end thread of the central screw 14 with the thread through hole of the force sensor 16, rotates the part held by hand clockwise, and adjusts the screwing depth of the thread. Then, the operator screws the clamping screws 19 into the two radial threaded through holes of the threaded sleeve 18, and the electromagnetic spring stator 100 is clamped by the two clamping screws 19 together, so that the electromagnetic spring stator 100 is flush with the upper surface of the electromagnetic spring mover 200. To this end, the main body portion of the entire device is installed.
Secondly, in reserving threaded through-hole 105 with motor base 4 through four motor base set screw 5 fixed connection motor base on detection platform 1, then fix motor 2 on motor base 4 through motor set screw 3, then fix bevel pinion 6 epaxial at motor 2 through the key-type connection for bevel pinion 6 meshes with big bevel pinion 9 smoothly.
Next, the displacement sensor bracket 23 is fixed in the displacement sensor bracket reserved threaded through hole 104 on the detection platform 1 through the bracket fixing screw 24, and then the displacement sensor 20 is clamped by the displacement sensor fixing screw 21 and the displacement sensor fixing nut 22, so that the measuring head of the displacement sensor 20 abuts against the upper surface of the electromagnetic spring stator 100, and a wire harness port of the displacement sensor 20 is reserved for signal transmission.
And finally, connecting the displacement sensor 20 with a USB-to-485 converter, then connecting the displacement sensor to a computer end, debugging a monitoring interface of the displacement sensor on the LVDT sensor upper computer software, connecting a force sensor wire harness port 161 to a signal acquisition Module KiDAQ Module 5517A, processing and converting the force sensor wire harness port by the acquisition Module, then connecting the force sensor wire harness port to the computer end software KiStudio Lab 4.1, debugging the monitoring interface of the force sensor wire harness port on the software, and ensuring that the signal acquisition and the signal presentation of the two sensors are smooth. Then the solenoid power-on end 301 is connected to the adjustable power supply, and the motor 2 is connected to the motor driver and the power supply. At this time, the whole detection device is assembled and debugged, and detection can be started.
Step two: detecting an electromagnetic spring
After the detection operation is started, the operator uses the adjustable power supply to supply a certain current to the electromagnetic coil 300, and the current can be supplied by the operator according to the performance range of the electromagnetic spring to automatically select the required detection performance. An operator starts the motor 2 to rotate at a constant speed, drives the threaded sleeve 18 to move upwards at a constant speed through bevel gear transmission and thread pair transmission between bevel gear internal threads and external threads of the threaded sleeve 18, then drives the electromagnetic spring stator 100 to move upwards at a constant speed, and enables the electromagnetic spring stator 100 and the electromagnetic spring rotor 200 to generate relative displacement in the axial direction, as shown in fig. 13, so that the displacement sensor 20 records the change of the rising displacement of the electromagnetic spring stator 100 in the vertical direction along with time, and the operator can observe the change of a displacement curve in real time from LVDT sensor upper computer software at a computer end. Meanwhile, the force sensor 16 records the change of the axial force received by the electromagnetic spring mover 200 along with the time, and an operator can observe the change of the spring force curve in real time from the KiStudio Lab R4.1 software on the computer end.
After the data acquisition of power and displacement is accomplished, the test procedure finishes, and driving motor 2 reverses and makes electromagnetic spring stator 100 descend to the upper surface and keep level with electromagnetic spring active cell 200 upper surface, and displacement sensor 20 is owing to built-in little spring can automatic re-setting detection device reconversion. If no further detection is needed, the adjustable power supply is powered off, the motor 2 is powered off, and the computer end is closed.
After the test is finished, curve data of force changing along with time and curve data of displacement changing along with time can be downloaded from a computer end, then the curve data are led into scientific drawing and data analysis software-Origin developed by Origin lab company, after the weight influence of the electromagnetic spring rotor 200, the electromagnetic coil 300, the two clamping blocks 13, the central screw 14 and the locking nut 15 is removed from the curve data of force changing along with time, the data of force changing along with time and the data of displacement changing along with time are integrated into the relation data of electromagnetic force along with the relative displacement of the rotor stator for scientific research analysis, as shown in fig. 14, a characteristic curve graph of the tooth-shaped electromagnetic spring obtained after the detection results are integrated is obtained, specifically, a working characteristic curve graph of the electromagnetic spring in one period, wherein a vertical coordinate F is the axial acting force between the stator rotors, namely the acting force of the electromagnetic spring, and the abscissa X is the axial relative displacement of the stator of the rotor.
Step three: replacement of electromagnetic spring for detection
If a new electromagnetic spring with different axial dimensions, slightly smaller radial dimensions or different wire diameters of the electromagnetic coil 300 needs to be detected, an operator cuts off an adjustable power supply for electrifying the electromagnetic coil 300, unscrews two clamping screws 19 which clamp the electromagnetic spring stator 100 outside the threaded sleeve 18, and integrally rotates the electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring rotor 200 and the electromagnetic coil 300), two clamping blocks 13, a central screw 14 and a locking nut 15 anticlockwise until the thread at the end part of the central screw 14 is separated from the threaded hole of the force sensor 16, then takes out the electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring rotor 200 and the electromagnetic coil 300), the two clamping blocks 13, the central screw 14 and the locking nut 15 from the device, unscrews the locking nut 15 at the end part of the central screw 14, takes off the clamping block 13 below, and then takes out the electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring 300 and the electromagnetic coil 300), The electromagnetic spring rotor 200 and the electromagnetic coil 300) are taken down, after a new electromagnetic spring is replaced, the lower clamping block 13 is installed back, then the locking nut 15 at the end part of the central screw 14 is screwed and locked, then the thread at the end part of the central screw 14 is aligned with the thread hole of the force sensor 16, the new electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring rotor 200 and the electromagnetic coil 300), the two clamping blocks 13, the central screw 14 and the locking nut 15 are rotated clockwise integrally until the central screw 14 is screwed into the thread hole in the force sensor 16 to a proper depth, then the central screw 14 is screwed into the thread sleeve 18 again to clamp the two clamping screws 19 of the electromagnetic spring stator 100, at the moment, the new electromagnetic spring is replaced and the whole detection device is reset, and the subsequent detection method is the same as the second step.
If the device is not needed, the electromagnetic spring (comprising the electromagnetic spring stator 100, the electromagnetic spring rotor 200 and the electromagnetic coil 300) is directly taken down, the adjustable power supply is powered off, the motor 2 is powered off, and the computer end is closed.
The above embodiments are merely illustrative of the technical concepts and features of the present invention, and the purpose of the embodiments is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (10)
1. The utility model provides a detection apparatus for profile of tooth electromagnetic spring working characteristic, it includes, coaxial arrangement's electromagnetic spring stator (100) and electromagnetic spring active cell (200) to and be located electromagnetic spring stator (100) and electromagnetic spring active cell (200) centre department and establish solenoid (300) on electromagnetic spring active cell (200), its characterized in that: it still includes: the electromagnetic spring testing device comprises a supporting mechanism for supporting an electromagnetic spring stator (100) and an electromagnetic spring rotor (200), a detection platform (1) positioned below the supporting mechanism, a driving mechanism, a transmission mechanism and a detection mechanism which are arranged on the detection platform (1), and a terminal control end connected with the driving mechanism and the detection mechanism;
the driving mechanism drives the transmission mechanism to operate so as to control the electromagnetic spring stator (100) installed on the supporting mechanism to move axially, and the detection mechanism sends the displacement of the electromagnetic spring stator (100) and the axial force applied to the electromagnetic spring rotor (200) to the terminal control end.
2. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 1, wherein: the supporting mechanism includes: two clamp splice (13) that have the step shaft, wear to establish central screw rod (14) on clamp splice (13) and establish lock nut (15) on central screw rod (14) with the cover, the step on two clamp splice (13) is blocked respectively at two tip of electromagnetic spring active cell (200), central screw rod flange (141) that central screw rod (14) one end was equipped with support on clamp splice (13), the other end of central screw rod (14) passes two clamp splice (13) after-fixing in proper order on detection mechanism, lock nut (15) offset with clamp splice (13).
3. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 1, wherein: the drive mechanism includes: motor (2), motor set screw (3), motor base (4), motor base set screw (5) and bevel pinion (6), motor set screw (3) fix motor (2) on motor base (4), motor base set screw (5) fasten motor base (4) on detecting platform (1), the output of motor (2) sets firmly bevel pinion (6) and drive mechanism cooperation work.
4. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 1, wherein: the transmission mechanism comprises: the device comprises a protective cover (7), an upper thrust bearing (8), a large bevel gear (9), a lower thrust bearing (10), a guide base (11), peripheral fixing screws (12), a threaded sleeve (18) and clamping screws (19);
the upper thrust bearing (8) and the lower thrust bearing (10) are respectively pressed on the upper surface and the lower surface of the large bevel gear (9) to axially fix the large bevel gear (9), the guide base (11) is provided with a guide column (111) and a guide ring (112), the guide column (111) is positioned on the inner side of the guide ring (112), and the guide ring (112) on the guide base (11) is abutted against the large bevel gear (9) to radially fix the large bevel gear (9);
the threaded sleeve (18) is sleeved on the guide post (111), threads arranged on the outer surface of the threaded sleeve (18) are matched and connected with internal threads arranged on the large bevel gear (9), and the large bevel gear (9) rotates to drive the threaded sleeve (18) to axially move;
the clamping screw (19) penetrates through the threaded sleeve (18) and abuts against the outer surface of the electromagnetic spring stator (100) so as to clamp the threaded sleeve (18) and the electromagnetic spring stator (100) together, and the protective cover (7) radially clamped on the outer surface of the threaded sleeve (18) is fixed on the detection platform (1) through the peripheral fixing screws (12).
5. The device for detecting the operating characteristics of a toothed electromagnetic spring according to claim 4, wherein: the protective cover (7) is a rotating body with an angle of 270-300 degrees.
6. The device for detecting the operating characteristics of a toothed electromagnetic spring according to claim 4, wherein: the upper end of the threaded sleeve (18) is radially provided with two threaded through holes with 180-degree intervals for screwing in the clamping screw (19).
7. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 1, wherein: the detection mechanism comprises: a force sensor (16) fixed on the detection platform (1) through a force sensor fixing screw (17) and a displacement sensor (20) fixed on a displacement sensor bracket (23);
the force sensor (16) is provided with a central screw (14) in a penetrating way, and the force sensor (16) is used for detecting the axial force applied to the electromagnetic spring rotor (200) supported by the central screw (14);
the electromagnetic spring stator (100) is driven to move axially through the threaded sleeve (18), and the axial displacement of the electromagnetic spring stator (100) is detected by a displacement sensor (20) which is abutted against the electromagnetic spring stator (100).
8. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 2, wherein: the clamping blocks (13), the central screw rod (14) and the threaded sleeve (18) are made of aluminum.
9. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 7, wherein: after the displacement sensor (20) vertically penetrates through the head of the Z-shaped displacement sensor support (23), a displacement sensor fixing screw (21) penetrates through the head of the displacement sensor support (23) and is fastened with a displacement sensor fixing nut (22) to limit the position of the displacement sensor (20), and the tail of the displacement sensor support (23) is fixed on the detection platform (1) through a support fixing screw (24).
10. The apparatus for detecting the operating characteristics of a toothed electromagnetic spring according to claim 1, wherein: the terminal control end comprises an acquisition module, a converter and a computer end, and a force sensor wiring harness port (161) on the force sensor (16) transmits acquired signals to the computer end through the acquisition module; the displacement sensor (20) connects the collected signal to the computer end through the USB-to-485 converter.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122704215.XU CN216050670U (en) | 2021-11-08 | 2021-11-08 | Detection apparatus for profile of tooth electromagnetic spring working characteristic |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202122704215.XU CN216050670U (en) | 2021-11-08 | 2021-11-08 | Detection apparatus for profile of tooth electromagnetic spring working characteristic |
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| CN216050670U true CN216050670U (en) | 2022-03-15 |
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