阅读说明：本技术 一种具有超高稳定性的机芯 (Movement with ultrahigh stability ) 是由 郭彦肖 孙林林 胡昊 季芳 毕杰 张大来 王胜学 张勇 石勇 于 2020-12-25 设计创作，主要内容包括：本发明公开一种具有超高稳定性的机芯,包括机芯底座(1),其特征在于：在机芯底座(1)内固定设置有光驱,所述机芯底座(1)内还设置有联动杠杆机构和压盘驱动机构,所述联动杠杆机构包括对称分布的第一杠杆(4)和第二杠杆(5),所述第一杠杆(4)和第二杠杆(5)均通过带有扭簧(6)的转轴转动连接在机芯底座(1)上,所述第一杠杆(4)和第二杠杆(5)的工作端处连接有导向驱动块(7),且所述的导向驱动块(7)呈圆台状,所述第一杠杆(4)和第二杠杆(5)上均设置有连接部(8),两个连接部(8)之间通过连接轴(9)相互铰接,在第一杠杆(4)远离工作端的一端处还设置有锁止部(10)。(The invention discloses a movement with ultrahigh stability, which comprises a movement base (1) and is characterized in that: the CD-ROM drive is arranged in the inner fixing of the machine core base (1), a linkage lever mechanism and a pressure plate driving mechanism are further arranged in the machine core base (1), the linkage lever mechanism comprises a first lever (4) and a second lever (5) which are symmetrically distributed, the first lever (4) and the second lever (5) are connected to the machine core base (1) in a rotating mode through rotating shafts with torsion springs (6), a guide driving block (7) is connected to the working end of the first lever (4) and the working end of the second lever (5), the guide driving block (7) is in a round table shape, connecting portions (8) are arranged on the first lever (4) and the second lever (5), the two connecting portions (8) are hinged to each other through connecting shafts (9), and a locking portion (10) is further arranged at one end of the first lever (4) far away from the working end.)

1. The utility model provides a core with ultra-high stability, includes core base (1), its characterized in that: the CD driver is fixedly arranged in the machine core base (1), meanwhile, the machine core base (1) is also connected with a supporting panel (11), a linkage lever mechanism and a pressure plate driving mechanism are arranged on the supporting panel (11),

the linkage lever mechanism comprises a first lever (4) and a second lever (5) which are symmetrically distributed, the first lever (4) and the second lever (5) are connected to a machine core base (1) in a rotating mode through rotating shafts with torsion springs (6), the working ends of the first lever (4) and the second lever (5) are connected with guide driving blocks (7), the guide driving blocks (7) are in a circular table shape, connecting portions (8) are arranged on the first lever (4) and the second lever (5), the two connecting portions (8) are hinged with each other through connecting shafts (9), a locking portion (10) is further arranged at one end, far away from the working ends, of the first lever (4),

the machine core base (1) is connected with a supporting panel (11), the supporting panel (11) is symmetrically provided with two arc-shaped long guide grooves (12), the first lever (4) and the second lever (5) are respectively provided with a first guide block (13), the two first guide blocks (13) are respectively connected in the two arc-shaped long guide grooves (12) in a sliding manner, the supporting panel (11) is further symmetrically provided with two arc-shaped short guide grooves (14), the first lever (4) and the second lever (5) are respectively provided with a second guide block (15), the two second guide blocks (15) are respectively connected in the two arc-shaped short guide grooves (14) in a sliding manner, the supporting panel (11) is further provided with a straight guide groove (16), and the end part of the connecting shaft (9) is connected in the straight guide groove (16) in a sliding manner,

the pressure plate driving mechanism comprises a driving motor (17) arranged on a machine core base (1), the output end of the driving motor (17) is connected with a positioning linkage gear (18) through a first gear transmission pair, the positioning linkage gear (18) is meshed with a positioning linkage rack (19) which is connected on a supporting panel (11) in a sliding way, a positioning plate (20) is arranged on the positioning linkage rack (19), the positioning plate (20) is matched with the locking part (10),

meanwhile, the output end of the driving motor (17) is connected with a double rack (21) which is connected to the machine core base (1) in a sliding manner through a second gear transmission pair, the double rack (21) is respectively connected with a first space cam (22) and a second space cam (23) which are supported on the machine core base (1) in a rotating manner through a third gear transmission pair and a fourth gear transmission pair which are symmetrically arranged, a rack on one side of the double rack (21) is meshed with an output gear in the second gear transmission pair, a rack on the other side is meshed with input gears in the third gear transmission pair and the fourth gear transmission pair, cam grooves (24) are formed in the first space cam (22) and the second space cam (23), the pressure plate driving mechanism further comprises a pressure plate frame (25), guide pins at two ends of the pressure plate frame (25) are respectively connected to the cam grooves (24) on the first space cam (22) and the second space cam (23) in a sliding manner, the head and the tail of the cam groove (24) are straight parts, and a spiral part is arranged between the two straight parts,

two ends of the double rack (21) are respectively provided with a first travel switch (26) connected to the machine core base (1), and the supporting panel (11) is provided with a second travel switch (27) matched with the movement limit position of the second lever (5).

Technical Field

The invention relates to the field of optical storage, in particular to a movement with ultrahigh stability.

Background

With the development of optical storage technology, the capacity of a single optical disc for an optical disc library reaches up to 500GB, the capacity is continuously increased, and under the condition that the read-write time of the single optical disc is not changed, the rotation speed of a spindle motor is a very necessary condition. For example, a 500GB disc requires that the rotating speed of a spindle motor for driving the disc to rotate is more than 7000 RPM; the current core used by the optical disc library is the core structure for the ordinary BD disc, the capacity of the BD disc is 100GB at most, and the normal working rotating speed of the spindle motor requires 3000-4000 RPM. However, the rotating speed still cannot meet the use requirement of the large-capacity optical disk library core, and in order to meet the use requirement of a 500GB disk, the working rotating speed needs to be increased by more than 2 times, or the reading and writing speed and the transmission speed are sacrificed; meanwhile, with the continuous development of the ultra-high capacity of the optical disc library, the optical disc of 1TB and above is required to be tried quickly, so that the requirement on the rotating speed of the optical disc is only stricter.

As shown in fig. 1, a conventional movement is formed by mounting a spindle motor on an optical drive unit 1-1, connecting the optical drive unit 1-1 and a movement base 1-2 through an intermediate base 1-3, mounting a tray 1-4 on the movement base 1-2, and mounting a platen carrier 1-5 on the movement base 1-2, and mounting a movement platen 1-6 on the platen carrier 1-5.

A disc to be read and written is placed on the tray 1-4 and transported above the optical drive 1-1, but before the disc is fed onto the spindle motor of the optical drive Units1-1, the optical drive Units1-1 need to move to lower the highest end of the motor below the plane of the tray 1-4, otherwise disc and motor interference will occur, and after the disc is fed above the spindle motor, the platen 1-6 moves downward to fix the disc on the spindle motor. In the traditional movement structure, the optical drive 1-1 is connected with the movement base 1-2 through various complex and movable mechanisms (the middle base 1-3), so when a motor works, the optical drive Units1-1, the middle base 1-3 and the movement base 1-2 generate resonance with larger amplitude, generate noise and influence the whole service life of the movement; meanwhile, the 1-3 seats in the middle bottom are integrally in a U-shaped structure, deformation is easy to occur in the forming process, the precision is difficult to guarantee, and the cost is high.

There is therefore a need for a method or apparatus that addresses the above-mentioned problems.

Disclosure of Invention

The invention provides a movement which can avoid resonance between the CD-ROM Units and the movement base so as to improve the read-write stability.

The technical solution of the invention is as follows: the utility model provides a core with ultra-high stability, includes core base 1, its characterized in that: the optical drive is fixedly arranged in the core base 1, meanwhile, the core base 1 is also connected with a supporting panel 11, a linkage lever mechanism and a pressure plate driving mechanism are arranged on the supporting panel 11,

the linkage lever mechanism comprises a first lever 4 and a second lever 5 which are symmetrically distributed, the first lever 4 and the second lever 5 are rotatably connected on the machine core base 1 through a rotating shaft with a torsional spring 6, the working ends of the first lever 4 and the second lever 5 are connected with a guide driving block 7, the guide driving block 7 is in a round table shape, the first lever 4 and the second lever 5 are both provided with connecting parts 8, the two connecting parts 8 are mutually hinged through a connecting shaft 9, one end of the first lever 4 far away from the working end is also provided with a locking part 10,

the movement base 1 is connected with a support panel 11, the support panel 11 is symmetrically provided with two arc-shaped long guide grooves 12, the first lever 4 and the second lever 5 are respectively provided with a first guide block 13, the two first guide blocks 13 are respectively connected in the two arc-shaped long guide grooves 12 in a sliding manner, the support panel 11 is further symmetrically provided with two arc-shaped short guide grooves 14, the first lever 4 and the second lever 5 are respectively provided with a second guide block 15, the two second guide blocks 15 are respectively connected in the two arc-shaped short guide grooves 14 in a sliding manner, the support panel 11 is further provided with a straight guide groove 16, the end part of the connecting shaft 9 is connected in the straight guide groove 16 in a sliding manner,

the pressure plate driving mechanism comprises a driving motor 17 arranged on the movement base 1, the output end of the driving motor 17 is connected with a positioning linkage gear 18 through a first gear transmission pair, the positioning linkage gear 18 is meshed with a positioning linkage rack 19 connected on the supporting panel 11 in a sliding way, a positioning plate 20 is arranged on the positioning linkage rack 19, the positioning plate 20 is matched with the locking part 10,

meanwhile, the output end of the driving motor 17 is connected with a double rack 21 slidably connected to the movement base 1 through a second gear transmission pair, the double rack 21 is connected with a first space cam 22 and a second space cam 23 rotatably supported on the movement base 1 through a third gear transmission pair and a fourth gear transmission pair which are symmetrically arranged, a rack on one side of the double rack 21 is engaged with an output tooth in the second gear transmission pair, a rack on the other side is engaged with an input tooth in the third gear transmission pair and an input tooth in the fourth gear transmission pair, the first space cam 22 and the second space cam 23 are provided with cam grooves 24, the platen driving mechanism further comprises a platen frame 25, guide pins at two ends of the platen frame 25 are slidably connected to the cam grooves 24 on the first space cam 22 and the second space cam 23 respectively, the head and the tail of the cam grooves 24 are straight parts, between these two straight portions is a spiral portion,

two ends of the double rack 21 are respectively provided with a first travel switch 26 connected to the movement base 1, and the support panel 11 is provided with a second travel switch 27 matched with the movement limit position of the second lever 5.

Compared with the prior art, the invention has the following advantages:

the core with the structure form and the ultrahigh stability has the advantages of simple structure, ingenious design and reasonable layout, and can be used for solving the problem that the optical drive and the core base (and a connecting mechanism between the optical drive and the core base) are easy to resonate in the use process of the core with the traditional structure, so that the limitation on the optical drive rotation number is generated, and the traditional structure form is creatively overturned. The optical disk drive is designed in a mode of fixedly connecting the optical disk drive and a machine core base, and simultaneously, a linkage lever mechanism and a pressure plate driving mechanism which are matched with each other are designed for the fixed optical disk drive, wherein the linkage lever mechanism can ensure the precision of the motion of an optical disk in the process of entering and exiting the machine core, and the pressure plate driving mechanism can drive the optical disk to move downwards to connect the optical disk with a motor shaft in the optical disk drive so as to carry out the read-write operation of the optical disk. Because it is with optical drive fixed connection on the core base, can furthest's improvement optical drive during operation stability, consequently can realize higher read-write speed, provide basis and space for optical drive's development. Meanwhile, the optical drive does not need to move in the movement, so the design space in the movement is released. The machine core with ultrahigh stability has the advantages of simple manufacturing process and low manufacturing cost, so that the machine core has various advantages, is particularly suitable for popularization and application in the field, and has very wide market prospect.

Drawings

Fig. 1 is a schematic structural diagram of a conventional movement in two operating states.

Fig. 2 is an overall structural schematic view (front face) of the embodiment of the present invention.

Fig. 3 is an overall structural schematic view (back surface) of the embodiment of the present invention.

Fig. 4 is a schematic structural view of a platen driving mechanism portion in the embodiment of the present invention.

FIG. 5 is a top view (without a support panel) of a portion of a ganged lever mechanism in an embodiment of the present invention.

FIG. 6 is a top view of a portion of a ganged lever mechanism (with a support panel) in an embodiment of the present invention.

FIG. 7 is a front view of a portion of a ganged lever mechanism in an embodiment of the present invention.

Fig. 8 is a schematic view of the operating states of the first space cam and the second space cam in the embodiment of the present invention, and an expanded view of the axes of the cam grooves formed in the two space cams.

FIG. 9 is a schematic diagram of the movement of the first lever locked by the positioning plate according to the embodiment of the present invention.

Detailed Description

The following description will explain embodiments of the present invention with reference to the accompanying drawings. As shown in fig. 1 to 9: the utility model provides a core with ultra-high stability, includes core base 1, its characterized in that: the optical drive is fixedly arranged in the core base 1, meanwhile, the core base 1 is also connected with a supporting panel 11, a linkage lever mechanism and a pressure plate driving mechanism are arranged on the supporting panel 11,

the linkage lever mechanism comprises a first lever 4 and a second lever 5 which are symmetrically distributed, the first lever 4 and the second lever 5 are rotatably connected on the machine core base 1 through a rotating shaft with a torsional spring 6, the working ends of the first lever 4 and the second lever 5 are connected with a guide driving block 7, the guide driving block 7 is in a round table shape, the first lever 4 and the second lever 5 are both provided with connecting parts 8, the two connecting parts 8 are mutually hinged through a connecting shaft 9, one end of the first lever 4 far away from the working end is also provided with a locking part 10,

the movement base 1 is connected with a support panel 11, the support panel 11 is symmetrically provided with two arc-shaped long guide grooves 12, the first lever 4 and the second lever 5 are respectively provided with a first guide block 13, the two first guide blocks 13 are respectively connected in the two arc-shaped long guide grooves 12 in a sliding manner, the support panel 11 is further symmetrically provided with two arc-shaped short guide grooves 14, the first lever 4 and the second lever 5 are respectively provided with a second guide block 15, the two second guide blocks 15 are respectively connected in the two arc-shaped short guide grooves 14 in a sliding manner, the support panel 11 is further provided with a straight guide groove 16, the end part of the connecting shaft 9 is connected in the straight guide groove 16 in a sliding manner,

the pressure plate driving mechanism comprises a driving motor 17 arranged on the movement base 1, the output end of the driving motor 17 is connected with a positioning linkage gear 18 through a first gear transmission pair, the positioning linkage gear 18 is meshed with a positioning linkage rack 19 connected on the supporting panel 11 in a sliding way, a positioning plate 20 is arranged on the positioning linkage rack 19, the positioning plate 20 is matched with the locking part 10,

meanwhile, the output end of the driving motor 17 is connected with a double rack 21 slidably connected to the movement base 1 through a second gear transmission pair, the double rack 21 is connected with a first space cam 22 and a second space cam 23 rotatably supported on the movement base 1 through a third gear transmission pair and a fourth gear transmission pair which are symmetrically arranged, a rack on one side of the double rack 21 is engaged with an output tooth in the second gear transmission pair, a rack on the other side is engaged with an input tooth in the third gear transmission pair and an input tooth in the fourth gear transmission pair, the first space cam 22 and the second space cam 23 are provided with cam grooves 24, the platen driving mechanism further comprises a platen frame 25, guide pins at two ends of the platen frame 25 are slidably connected to the cam grooves 24 on the first space cam 22 and the second space cam 23 respectively, the head and the tail of the cam grooves 24 are straight parts, between these two straight portions is a spiral portion,

two ends of the double rack 21 are respectively provided with a first travel switch 26 connected to the movement base 1, and the support panel 11 is provided with a second travel switch 27 matched with the movement limit position of the second lever 5.

The working process of the movement with ultrahigh stability provided by the embodiment of the invention is as follows: when the optical disk drive is required to read/write an optical disk, a worker or an optical disk pickup mechanism sends the optical disk into the core in the structural form, the optical disk enters the core through an inlet formed in the core and then contacts with a linkage lever mechanism, in particular to a guide driving block 7 at the end part of a first lever 4 and a second lever 5, because the first lever 4 and the second lever 5 are symmetrically arranged and the circle center of the optical disk is positioned on a symmetrical shaft between the first lever 4 and the second lever 5, when the optical disk moves towards the direction inside the core, the reaction force exerted by the two guide driving blocks 7 on the optical disk is equal, and the stability and the accuracy of the optical disk in the moving process can be ensured; in the process that the optical disc enters the movement, the first lever 4 and the second lever 5 respectively swing in opposite directions, the first guide block 13 on the first lever slides in the arc-shaped long guide groove 12, the second guide block 15 on the second lever slides in the arc-shaped short guide groove 14, and the connecting shaft 9 slides in the straight guide groove 16, so that the structure can ensure the stability of the first lever 4 and the second lever 5 in the motion process;

when the linkage lever mechanism acts, the pressure plate driving mechanism also works, the driving motor 17 drives the positioning linkage gear 18 and the double racks 21 to act through the first gear transmission pair and the second gear transmission pair, wherein the positioning linkage gear 18 drives the positioning linkage rack 19 to slide on the supporting panel 11, when the optical disc completely enters the movement, the first lever 14 swings to the limit position, the positioning plate 20 on the positioning linkage rack 19 can drive the locking part 10 to move for a short distance at the moment, so that the two guide driving blocks 7 are separated from the edge of the optical disc, and then the positioning plate 20 can clamp the locking part 10, so that the first lever 4 is locked; since the first lever 4 and the second lever 5 are in linkage relation, when the first lever 4 is locked, the second lever 5 is also locked; when the second lever 5 is in a locked state, the second lever 5 triggers the second travel switch 27, and the control system of the movement judges that the linkage lever mechanism is separated from the optical disk and can perform the action of pressing down the optical disk;

when the double rack 21 moves, the input teeth in the third gear transmission pair and the fourth gear transmission pair are driven to rotate simultaneously, so that the first space cam 22 and the second space cam 23 are driven to rotate synchronously (the rotation directions of the two space cams are opposite), and when the two space cams rotate, the guide pin slides in the cam groove 24, and finally, the longitudinal movement of the press disc frame 25 is realized; the expansion line of the cam groove 24 is as shown in fig. 8, the head and the tail are straight parts, when the guide pin slides in the straight part, the height of the pressure plate rack 25 will not change, at this time, waiting for the optical disc to enter the inside of the machine core, when the optical disc moves to the position below the pressure plate arranged at the center of the pressure plate rack 25, the movement rhythm of the optical disc and the pressure plate rack 25 is matched, the pressure plate rack 25 drives the pressure plate to move downwards, the optical disc is pressed downwards until the inner hole of the optical disc is sleeved on the rotating shaft of the optical drive, and then the read-write operation can be carried out;

after the read-write operation is finished, the driving motor 17 rotates reversely, on one hand, the platen frame 25 is driven to drive the platen to move upwards, on the other hand, the positioning linkage rack 19 is driven to move reversely, when the positioning plate 20 leaves the locking part 10, under the action of the torsion spring, the first lever 4 and the second lever 5 can simultaneously and reversely swing, so that the two guide driving blocks 7 at the end parts of the first lever 4 and the second lever 5 can contact with the edge of the optical disk and push the optical disk to move, because the guide driving block 7 is in a circular table shape as a whole, the optical disk moves upwards while moving towards the outside of the movement under the extrusion action of the two guide driving blocks 7, when the first lever 4 and the second lever 5 return to the initial state, the optical disc is ejected by the movement, and at this time, the staff or the optical disc pickup mechanism can take the optical disc off the movement, so that a complete optical disc read-write operation is completed.