CN215263801U - High-speed centrifugal test device for quartz crystal oscillator - Google Patents
High-speed centrifugal test device for quartz crystal oscillator Download PDFInfo
- Publication number
- CN215263801U CN215263801U CN202122891433.9U CN202122891433U CN215263801U CN 215263801 U CN215263801 U CN 215263801U CN 202122891433 U CN202122891433 U CN 202122891433U CN 215263801 U CN215263801 U CN 215263801U
- Authority
- CN
- China
- Prior art keywords
- belt
- speed
- belt pulley
- pulley
- crystal oscillator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The utility model relates to a quartz crystal oscillator high-speed centrifugal test device, which drives a screw rod to rotate through a servo motor so as to lead a driven triangular belt pulley to move on a linear guide rail, thereby changing the distance between the driven triangular belt pulley and a driving triangular belt pulley, and changing the position of the width of a belt by utilizing the effective width of the inclined plane distance between the driving triangular belt pulley and the driven triangular belt pulley, so that the rotating radius of the belt driven by the triangular belt pulley is increased and decreased, thereby changing the rotating speed of a high-speed rotating shaft; the tension of the belt is kept unchanged by automatically adjusting the relaxation of the belt caused by the change of the distance between the driving V-belt pulley and the driven V-belt pulley through a tension adjusting device; the belt pulley of the traditional external mode is replaced by an annular belt groove on a high-speed rotating shaft.
Description
Technical Field
The utility model relates to a quartzy crystal oscillator test technical field especially relates to a quartzy crystal oscillator high speed centrifugation testing arrangement.
Background
The development of new energy vehicles opens up a new field of vehicle electronics, and requirements for vehicle electronics related products need to meet various vehicle specifications, such as vehicle networks, safety systems, vehicle multimedia, vehicle power supplies and the like. The quartz crystal oscillator covers most of automotive electronic products, and the centrifugal test condition of the quartz crystal oscillator must reach equal acceleration of 30000g according to automotive specification requirements such as MIL-STD-883Method2001 constant acceleration test standard. In order to meet the requirement, centrifugal test equipment needs to have the characteristics of high stability, high mechanical strength, high transmission efficiency and the like, and no equipment related to accelerated test of quartz crystal oscillators is available in the market at present.
Disclosure of Invention
The technical problem to be solved by the utility model is to provide a quartz crystal oscillator high-speed centrifugal test device, which is used for quartz crystal oscillator acceleration test equipment, a test flywheel adopts a design of a conical stepped structure, can simultaneously carry out equal acceleration tests under different conditions, and can simultaneously adjust the rotating speed of a high-speed rotating shaft; the mass of the belt and the test flywheel is utilized to weaken the vibration generated in the rotation process and improve the stability of the test flywheel; the device can reach the standard of the vehicle gauge, the transmission mechanism has the characteristics of high stability and high efficiency, and the device has positive promotion effect on design verification and mass production and detection processes of the quartz crystal oscillator in vehicle electronics.
The utility model provides a technical scheme that its technical problem adopted is: provides a high-speed centrifugal test device for a quartz crystal oscillator, which comprises a test flywheel, a servo motor, a high-speed motor and two support plates, wherein the two support plates are arranged oppositely up and down, a high-speed rotating shaft is rotatably arranged between the two support plates, the upper end of the high-speed rotating shaft passes through the supporting plate and is provided with a testing flywheel, the output shaft of the high-speed motor is provided with a driving V-belt pulley, the output shaft of the servo motor is connected with a screw rod, two sides of the screw are respectively provided with a linear guide rail, two linear guide rails are provided with a supporting seat in a sliding way, one end of the supporting seat is connected with the screw in a screwing way, the other end of the supporting seat is rotatably provided with a driven V-belt pulley, the driven V-belt pulley and the driving V-belt pulley are symmetrically arranged, the driven V-belt pulley and the driving V-belt pulley are in transmission connection with the high-speed rotating shaft through a belt, and a tension adjusting device is arranged in the middle of the belt.
As a supplement to the technical scheme of the utility model, high-speed bearing is installed to high-speed pivot and backup pad between.
As right technical scheme a supplement, high-speed pivot middle part seted up round annular race, this annular race's cross sectional shape is isosceles trapezoid.
As right technical scheme a supplement, servo motor's output shaft and screw rod between through the adapter sleeve connection.
As right technical scheme a supplement, test flywheel lower extreme middle part seted up the jack, high-speed pivot upper end insert the jack and lock through the fastener.
As right technical scheme a supplement, the test flywheel be the cascaded structure of toper, this test flywheel includes the disc of a plurality of diameter grow gradually from the top down, a plurality of disc is concentric and arranges, every disc upper end edge all surrounds the circumference and has arranged a plurality of test groove.
As right technical scheme a supplement, a plurality of disc adopts integrated into one piece, guarantees the structural stability between each disc.
As right technical scheme a supplement, tension adjusting device include tension pulley, belt guide bracket and belt guide pulley, belt guide bracket install at the belt middle part, install the belt guide pulley on this belt guide bracket, the rotation axis of belt guide pulley one side on rotate and be connected with the tension pulley extension board, the tension pulley is installed to this tension pulley extension board one end, tension pulley extension board middle part and belt guide bracket lower part between install the spring.
Has the advantages that: the utility model relates to a high-speed centrifugal test device of quartz crystal oscillator has following several advantages:
1. the servo motor drives the screw rod to rotate so that the driven V-belt pulley moves on the linear guide rail, so that the distance between the driven V-belt pulley and the driving V-belt pulley is changed, the position of the width of the belt is changed by utilizing the effective width of the inclined plane distance between the driving V-belt pulley and the driven V-belt pulley, the rotating radius of the belt driven by the V-belt pulley is increased or decreased, and the rotating speed of the high-speed rotating shaft is changed;
2. the tension of the belt is kept unchanged by automatically adjusting the relaxation of the belt caused by the change of the distance between the driving V-belt pulley and the driven V-belt pulley through a tension adjusting device;
3. the belt pulley of the traditional additional mode is replaced by the annular belt groove on the high-speed rotating shaft (namely, the belt pulley is sleeved outside the high-speed rotating shaft and then positioned by using the fastener, and the high-speed rotating shaft is driven by the belt pulley), when the high-speed rotating shaft rotates at a high speed in the traditional mode, certain shaking can exist between the high-speed rotating shaft and the belt pulley to influence the structural stability, and the problem cannot exist when the annular belt groove is formed;
4. the test flywheel is the cascaded structure of toper, and the test flywheel is great itself, utilizes the test flywheel dead weight can weaken the vibration of centrifugation rotation in-process, and the test flywheel divide into 3 layers ladder designs, and the radius of rotation of the test groove on different ladder layers is different, according to centrifugal force's computational formula, and centrifugal force is directly proportional with the radius, so can carry out the test of different acceleration conditions simultaneously under the same rotational speed.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a cross-sectional view of a test flywheel according to the present invention;
FIG. 3 is a top view of a test flywheel according to the present invention;
fig. 4 is a schematic structural diagram of a high-speed bearing according to the present invention;
fig. 5 is a schematic structural diagram of the tension adjusting device according to the present invention.
The figure is as follows: 1. fastener, 2, test flywheel, 3, support plate, 4, high-speed bearing, 5, high-speed rotating shaft, 6, belt, 7, servo motor, 8, screw rod, 9, driven V-belt pulley, 10, driving V-belt pulley, 11, high-speed motor, 12, linear guide rail, 13, supporting seat, 14, switching shaft sleeve, 15, tension adjusting device, 16, disc, 17, test slot, 18, annular belt groove, 19, jack, 20, belt guide wheel, 21, tension wheel, 22, tension wheel support plate, 23, belt guide wheel support, 24 and spring.
Detailed Description
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.
The embodiment of the utility model relates to a quartz crystal oscillator high-speed centrifugal test device, as shown in figure 1, comprising a test flywheel 2, a high-speed rotating shaft 5, a servo motor 7, a high-speed motor 11 and two supporting plates 3, wherein the two supporting plates 3 are arranged up and down oppositely, the high-speed rotating shaft 5 is fixed between the two supporting plates 3 through a high-speed bearing 4, the test flywheel 2 is fixed on the high-speed rotating shaft 5 through a fastener 1, an output shaft of the high-speed motor 11 is provided with a driving triangle belt pulley 10, an output shaft of the servo motor 7 is connected with a screw rod 8 through a switching shaft sleeve 14, two sides of the screw rod 8 are respectively provided with a linear guide rail 12, two linear guide rails 12 are provided with a supporting seat 13 in a sliding way, one end of the supporting seat 13 is connected with the screw rod 8 in a screwing way, the other end of the supporting seat 13 is rotatably provided with a driven triangle belt pulley 9, driven V-belt pulley 9 and initiative V-belt pulley 10 symmetrical arrangement, driven V-belt pulley 9 and initiative V-belt pulley 10 pass through belt 6 and be connected with the transmission of high- speed pivot 5, 6 mid-mounting of belt have tension adjusting device 15.
The servo motor 7 drives the screw rod 8 to rotate so that the driven V-belt pulley 9 moves on the linear guide rail 12, the distance between the driven V-belt pulley 9 and the driving V-belt pulley 10 is changed, the position of the width of the belt 6 is changed by utilizing the effective width of the inclined plane distance between the driving V-belt pulley 10 and the driven V-belt pulley 9, the rotating radius of the belt 6 driven by the V-belt pulley is increased or decreased, and the rotating speed of the high-speed rotating shaft 5 is changed; the relaxation of the belt 6 due to the change in the interval between the driving v-pulley 10 and the driven v-pulley 9 is automatically adjusted by the tension adjusting means 15 so that the tension of the belt 6 is kept constant.
As shown in fig. 4, a circle of annular belt groove 18 is processed in the middle of the high-speed rotating shaft 5, the cross section of the annular belt groove 18 is isosceles trapezoid, the belt pulley in the traditional external mode is replaced by the annular belt groove 18 (namely, the belt pulley is sleeved outside the high-speed rotating shaft 5 traditionally, and then the fastening piece is used for positioning, the high-speed rotating shaft 5 performs transmission through the belt pulley), when the high-speed rotating shaft 5 rotates at a high speed, certain shaking can exist between the high-speed rotating shaft 5 and the belt pulley in the traditional mode, the structural stability is affected, and the problem cannot exist when the annular belt groove 18 is formed.
The upper end of the high-speed rotating shaft 5 is inserted into the jack 19 in the middle of the lower end of the testing flywheel 2 and locked by the fastener 1, so that the high-speed rotating shaft 5 and the testing flywheel 2 are installed and fixed, and the fastener 1 is a screw.
The testing flywheel 2 is of a conical stepped structure, the testing flywheel 2 is large in mass, vibration in the centrifugal rotation process can be weakened by the aid of self weight of the testing flywheel 2, referring to fig. 2 and fig. 3, the testing flywheel 2 is divided into 3 layers of stepped designs, the rotation radiuses of the testing grooves 17 on different stepped layers are different, and according to a calculation formula of centrifugal force, the centrifugal force is in direct proportion to the radiuses, so that tests under different acceleration conditions can be carried out at the same time at the same rotating speed.
The calculation formula of the centrifugal force is F = a × m; (F: centrifugal force; a: centripetal acceleration; m: object mass), a = ω2 * r=v2/r=(2πr * rpm/60) 2/r=1.09 *10-4 *r * rpm2(ii) a (omega: angular velocity; v: velocity; r: radius; rpm: rotational speed, number of revolutions per minute).
As shown in fig. 5, the tension adjusting device 15 includes a tension pulley 21, a tension pulley support plate 22, a belt pulley holder 23 and a belt pulley 20, the belt pulley 20 is mounted in the middle of the belt 6 through the belt pulley holder 23, the belt 6 is wound between the tension pulley 21 and the belt pulley 20, the tension pulley support plate 22 can rotate around a rotating shaft on one side of the belt pulley 20, so that the position of the tension pulley 21 is changed, a spring 24 is mounted between the middle of the tension pulley support plate 22 and the lower portion of the belt pulley holder 23, and the spring 24 ensures that the tension pulley 21 applies pressure to the belt 6.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and if not stated otherwise, the terms have no special meaning, and therefore, the scope of the present invention should not be construed as being limited.
The above detailed description is provided for a high-speed centrifugal test device for a quartz crystal oscillator, and the principle and the implementation of the present application are explained by applying specific examples, and the above description of the embodiments is only used to help understanding the method and the core idea of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (8)
1. The utility model provides a quartz crystal oscillator high speed centrifugation testing arrangement which characterized in that: comprises a testing flywheel (2), a servo motor (7), a high-speed motor (11) and two supporting plates (3), wherein the two supporting plates (3) are oppositely arranged from top to bottom, a high-speed rotating shaft (5) is installed between the two supporting plates (3) in a rotating manner, the upper end of the high-speed rotating shaft (5) penetrates through the supporting plates (3) and is provided with the testing flywheel (2), an output shaft of the high-speed motor (11) is provided with a driving triangular belt pulley (10), an output shaft of the servo motor (7) is connected with a screw rod (8), two sides of the screw rod (8) are respectively provided with a linear guide rail (12), two linear guide rails (12) are provided with a supporting seat (13) in a sliding manner, one end of the supporting seat (13) is connected with the screw rod (8) in a rotating manner, the other end of the supporting seat (13) is provided with a driven triangular belt pulley (9) in a rotating manner, and the driven triangular belt pulley (9) and the driving triangular belt pulley (10) are symmetrically arranged, driven V-belt pulley (9) and initiative V-belt pulley (10) pass through belt (6) and be connected with high-speed pivot (5) transmission, belt (6) mid-mounting have tension adjusting device (15).
2. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: and a high-speed bearing (4) is arranged between the high-speed rotating shaft (5) and the supporting plate (3).
3. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: a circle of annular belt groove (18) is formed in the middle of the high-speed rotating shaft (5), and the section of the annular belt groove (18) is isosceles trapezoid.
4. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: the output shaft of the servo motor (7) is connected with the screw rod (8) through a switching shaft sleeve (14).
5. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: the middle part of the lower end of the testing flywheel (2) is provided with an insertion hole (19), and the upper end of the high-speed rotating shaft (5) is inserted into the insertion hole (19) and locked through a fastening piece (1).
6. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: the testing flywheel (2) is of a conical stepped structure, the testing flywheel (2) comprises a plurality of disks (16) with diameters gradually increasing from top to bottom, the disks (16) are concentrically arranged, and the edge of the upper end of each disk (16) surrounds the circumference and is provided with a plurality of testing grooves (17).
7. The quartz crystal oscillator high-speed centrifugal test device according to claim 6, characterized in that: the plurality of discs (16) are integrally formed.
8. The quartz crystal oscillator high-speed centrifugal test device according to claim 1, characterized in that: tension adjusting device (15) include tension pulley (21), belt guide wheel support (23) and belt guide pulley (20), belt guide wheel support (23) install at belt (6) middle part, install belt guide pulley (20) on this belt guide wheel support (23), the rotation axis of belt guide pulley (20) one side on rotate and be connected with tension pulley extension board (22), tension pulley (21) are installed to this tension pulley extension board (22) one end, tension pulley extension board (22) middle part and belt guide wheel support (23) lower part between install spring (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122891433.9U CN215263801U (en) | 2021-11-24 | 2021-11-24 | High-speed centrifugal test device for quartz crystal oscillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122891433.9U CN215263801U (en) | 2021-11-24 | 2021-11-24 | High-speed centrifugal test device for quartz crystal oscillator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215263801U true CN215263801U (en) | 2021-12-21 |
Family
ID=79498093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122891433.9U Active CN215263801U (en) | 2021-11-24 | 2021-11-24 | High-speed centrifugal test device for quartz crystal oscillator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215263801U (en) |
-
2021
- 2021-11-24 CN CN202122891433.9U patent/CN215263801U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPH10180147A (en) | Ball balancer and centrifugal separator provided therewith | |
| KR20020072211A (en) | Apparatus and method for measuring uniformity and/or dynamic balance of tire | |
| CN106595433A (en) | Measurement method and apparatus for radial runout of bearing inner ring | |
| US20190011322A1 (en) | Dynamic balance testing device | |
| CN215263801U (en) | High-speed centrifugal test device for quartz crystal oscillator | |
| CN105784357A (en) | Automobile speed changer noise test stand | |
| CN101762353A (en) | CVT (Contiuously Variable transmission) axial force test device | |
| EP2985583B1 (en) | Inspection device | |
| CN213397498U (en) | Dynamic balance detection mechanism for rotor of three-phase asynchronous motor | |
| CN109540390A (en) | The method and dynamic balancing mandrel of high speed rotor removal amount of unbalance | |
| KR100309752B1 (en) | Apparatus and method for carrying out measuring method of rolling resistance and adhesion limit | |
| CN106769045A (en) | A kind of RV decelerators base bearing performance testing device | |
| CN106918756A (en) | The special running-in test device of conducting slip ring | |
| CN1461897A (en) | Cage with rotation symmetrical depression | |
| CN109916541A (en) | A kind of turntable bearing frictional torque testing machine | |
| JPS6235680Y2 (en) | ||
| CN204924527U (en) | A torque -measuring apparatus for fatigue testing machine is turned round to miniature drawing | |
| CN218724995U (en) | Transmission shaft dynamic balance detection device | |
| CN109596358A (en) | A kind of full-automatic bearing vibration velocity test device | |
| CN206945220U (en) | A kind of dynamic balance measuring instrument using spring needle | |
| CN109946063A (en) | A kind of automotive transmission high speed test platform mechanical system | |
| CN111947588A (en) | Nominal gap measuring structure for gas foil bearing | |
| CN109342052B (en) | Transmission test device based on circular grating | |
| CN109774968A (en) | A kind of shaft part and support adjustable multi-bearing rotor testing stand | |
| CN200982903Y (en) | Detection device of drum brake |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |