CN112185427B - Bradyseism record player - Google Patents
Bradyseism record player Download PDFInfo
- Publication number
- CN112185427B CN112185427B CN202011080197.6A CN202011080197A CN112185427B CN 112185427 B CN112185427 B CN 112185427B CN 202011080197 A CN202011080197 A CN 202011080197A CN 112185427 B CN112185427 B CN 112185427B
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- Prior art keywords
- shaft
- tone arm
- turntable
- present
- rotating
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- 230000005540 biological transmission Effects 0.000 claims abstract description 27
- 230000007246 mechanism Effects 0.000 claims description 85
- 239000003921 oil Substances 0.000 claims description 20
- 241001422033 Thestylus Species 0.000 claims description 10
- 239000010687 lubricating oil Substances 0.000 claims description 7
- 238000007789 sealing Methods 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 claims description 4
- 230000035939 shock Effects 0.000 claims description 4
- 230000003139 buffering effect Effects 0.000 claims 6
- 238000003780 insertion Methods 0.000 description 6
- 230000037431 insertion Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 2
- 229920002554 vinyl polymer Polymers 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
- G11B3/02—Arrangements of heads
- G11B3/10—Arranging, supporting, or driving of heads or of transducers relatively to record carriers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
- G11B33/02—Cabinets; Cases; Stands; Disposition of apparatus therein or thereon
- G11B33/08—Insulation or absorption of undesired vibrations or sounds
Landscapes
- Holding Or Fastening Of Disk On Rotational Shaft (AREA)
Abstract
The invention discloses a bradyseism record player, relate to the technical field of the playback device; the device comprises a base, a first turntable, a second turntable, a first driving part and a transmission part; the first rotating disc is rotatably arranged above the base, and the first driving part is arranged in the base; the transmission component is in transmission connection with the first driving component and the first rotary disc respectively; the second turntable is used for mounting a turntable and is mounted on the first turntable and synchronously rotates with the first turntable. According to the invention, the first rotating disc is arranged at the lower part of the second rotating disc and is connected with the motor through the belt, so that the second rotating disc at the upper layer is driven to rotate by the rotation of the first rotating disc, and the vibration caused by the rotation of the second rotating disc driven only by the belt is improved.
Description
Technical Field
The invention relates to the technical field of playback devices, in particular to a cushioning record player.
Background
The existing black film record player drives the disc to rotate through the motor, but the motor is arranged externally, so that the disc is frequently shaken due to the operation of the motor and the conduction of a belt, the operation balance cannot be realized, and the listening experience is influenced.
Disclosure of Invention
The invention aims to provide a cushioning record player to solve the problem that the existing record player is easy to shake and influence listening experience.
In order to achieve the purpose, the technical scheme provided by the invention is as follows:
a bradyseism CD player, including base, first rotary table, second rotary table, first drive unit and drive unit; the first rotating disc is rotatably arranged above the base, and the first driving part is arranged in the base; the transmission component is in transmission connection with the first driving component and the first rotary disc respectively; the second turntable is used for mounting a turntable and is mounted on the first turntable and synchronously rotates with the first turntable.
According to the bradyseism CD player provided by the invention, the first rotary disc is arranged at the lower part of the second rotary disc and is connected with the motor through the belt, so that the second rotary disc at the upper layer is driven to rotate by the rotation of the first rotary disc, and the vibration caused by the rotation of the second rotary disc driven only by the belt is improved.
In addition, the bradyseism record player according to the above embodiment of the present invention may further have the following additional technical features:
according to one example of the present invention, the base includes a chassis and a stand coupled to a bottom of the chassis; the bottom of the chassis is provided with a hollow center shaft and a shaft cover which is covered at the bottom end of the center shaft, and a rotating shaft, a shaft sleeve and a supporting ball with a smooth surface are arranged in the center shaft; the supporting ball is arranged on the shaft cover and is in rolling fit with the shaft cover; the upper end of the rotating shaft is connected with the first rotating disc, and the lower end of the rotating shaft is abutted against the supporting ball; the shaft sleeve is sleeved outside the rotating shaft.
According to an example of the invention, the inner wall of the shaft sleeve is provided with an oil guide groove, and the oil guide groove is filled with lubricating oil.
According to an example of the present invention, the oil guide groove is arranged in a spiral shape in an axial direction of the sleeve.
According to one example of the invention, the top of the shaft sleeve is provided with a sealing element which is in sealing fit with the rotating shaft.
According to an example of the present invention, an oil reservoir is provided in the shaft cover, and lubricating oil is stored in the oil reservoir.
According to an example of the present invention, the number of the holders is at least two, and the first driving member is installed in one of the holders.
According to an example of the invention, the support ball is made of a ceramic material; and/or the bushing is made of a ceramic material.
According to one example of the invention, the bottom of the support is provided with a shock-absorbing member.
According to one example of the present invention, a tone arm support and a tone arm assembly are provided, the tone arm support being integrally connected to the base; the tone arm device comprises a rotating seat, a lifting mechanism, a tone arm mechanism and a tone needle mechanism; the rotating seat is arranged on the tone arm bracket; the lifting mechanism is arranged on the rotating seat; one end of the tone arm mechanism is installed on the lifting mechanism, and the other end of the tone arm mechanism is provided with the stylus mechanism.
According to an example of the present invention, the tone arm apparatus further includes a locking mechanism mounted on the rotary base and located below the tone arm mechanism, the locking mechanism rotating in synchronization with the tone arm mechanism;
the tone arm mechanism comprises a second driving part and a rod body, the second driving part is arranged on the lifting mechanism and is used for driving the rod body to stretch and retract horizontally and upwards, and the rod body is provided with a first locking part and a second locking part;
the lifting mechanism can drive the tone arm mechanism to lift and lower between a first height and a second height, and the first height is lower than the second height;
when the rod body retracts to a first position and the lifting mechanism drives the rod body to descend to the first height, the locking mechanism is in locking fit with the first locking part; the rod body extends to the second position, and when the lifting mechanism drives the rod body to descend to the first height, the locking mechanism is in locking fit with the second locking portion.
According to an example of the present invention, the first locking portion includes a first locking hole, the second locking portion includes a second locking hole, and the locking mechanism includes a lock tongue engageable with the first locking hole and the second locking hole; the spring bolt is equipped with and is used for the bearing the elastic support portion of the body of rod.
According to an example of the present invention, the locking mechanism includes a height adjusting part connected with the elastic support part; the stylus mechanism is provided with a pressure detection component which is used for being in contact with a turntable, the pressure detection component is connected with a control mechanism, the control mechanism is connected with the height adjusting component, and the height adjusting component is controlled to act through a pressure value detected by the pressure detection component.
According to an example of the invention, the middle shaft further comprises an elastic clamping device, wherein the elastic clamping device is positioned below the shaft sleeve and is installed on the inner wall of the middle shaft;
the elastic clamping device comprises a mounting cover, a plurality of elastic clamping pieces and a transmission cover; the mounting cover and the transmission cover are respectively provided with a through hole for the rotating shaft to pass through; the elastic clamping pieces are arranged on the mounting cover along the circumferential direction, each elastic clamping piece is provided with a first end and a second end which are opposite to each other, the second ends of the elastic clamping pieces surround a limiting hole, and the transmission cover is arranged on the mounting cover;
the shaft cover is in threaded connection with the bottom end of the middle shaft, the shaft cover is provided with an inserting portion, the transmission cover is provided with a jack matched with the inserting portion, and when the shaft cover is installed on the middle shaft in a screwing mode, the inserting portion is in limit fit with the jack, so that the shaft cover and the transmission cover rotate synchronously, the aperture of the limit hole is gradually reduced, and the support ball is clamped.
According to an example of the invention, the first end is provided with a first connecting part, the transmission cover is provided with a plurality of second connecting parts at intervals along the circumferential direction, and the first connecting part and the second connecting parts are connected through a first connecting shaft;
the elastic clamping piece is provided with a third connecting portion between the first end and the second end, the mounting cover is provided with a plurality of fourth connecting portions at even intervals along the circumferential direction, and the third connecting portions are connected with the fourth connecting portions through second connecting shafts.
According to an example of the present invention, the second end of each of the resilient clamping members is provided with a clamping surface, and the clamping surfaces of the plurality of resilient clamping members can enclose an annular ring.
Advantages of the above additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic structural diagram of a bradyseism record player according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an internal structure of a cushioning record player according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a tone arm apparatus of a cushioning record player according to an embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a clamping device of a bradyseism record player according to an embodiment of the present invention;
FIG. 5 is an exploded view of a clamping device of a tremolo recorder according to an embodiment of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a base; 11-a chassis; 111-tone arm support; 12-a support; 121-a shock absorbing member;
2-a first turntable;
3-a second turntable;
4-a first drive component;
5-a transmission component; 51-a belt pulley; 52-belt drive configuration;
6-middle axis; 61-shaft cover; 611-oil storage; 612-a plug-in part; 62-a rotating shaft; 63-shaft sleeve; 631-a seal; 64-a support ball;
7-tone arm device; 71-a rotating seat; 72-a lifting mechanism; 73-tone arm mechanism; 731-second drive member; 732-a rod body; 7321-a first locking portion; 7322-a second locking part; 74-stylus mechanism; 75-a locking mechanism; 751-a bolt; 7511-elastic support part; 752-height adjustment feature;
8-an elastic clamping device; 81-mounting a cover; 811-a fourth connecting portion; 82-a resilient clamping member; 821-a first connection; 822-a clamping surface; 823-third connecting part; 83-a drive cap; 831-plug hole; 832-second connection; 84-a limiting hole; 85-first connecting shaft; 86-second connecting shaft.
Detailed Description
The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "inside", "outside", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Referring to fig. 1, a bradyseism phonograph record player, specifically a vinyl record player, is provided in this embodiment, and includes a base 1, a first turntable 2, a second turntable 3, a first driving member 4, a transmission member 5, and other functional structures.
The base 1 of the present embodiment serves as a supporting and mounting structure of the entire disc player, the base 1 of the present embodiment includes a chassis 11 and a support 12 connected to the bottom of the chassis 11, wherein a tone arm support 111 extends from the chassis 11, the tone arm support 111 is used for mounting the tone arm device 7, and the chassis 11 of the present embodiment is used for mounting the first turntable 2 and the like.
The first rotating disk 2 of the embodiment is rotatably installed on the chassis 11, the first driving part 4 of the embodiment is installed in the support 12 of the base 1, and the first driving part 4 may be a motor or the like; the transmission part 5 of the embodiment is in transmission connection with the first driving part 4 and the first rotating disc 2 respectively.
As a preferable embodiment of the present embodiment, the number of the supports 12 of the present embodiment is two or more, wherein the first driving member 4 is installed in one support 12, and in order to reduce the vibration, a shock absorbing member 121 is provided at the bottom of each support 12 of the present embodiment, and the shock absorbing member 121 may be a rubber pad or the like.
The transmission member 5 of the present embodiment may include a belt pulley 51 and a belt transmission structure 52, wherein the belt transmission structure 52 is mounted on the belt pulley 51 and connected with the first rotating disc 2 to rotate the first rotating disc 2.
Unlike the prior art, the first turntable 2 of the present embodiment does not directly mount a turntable, but mounts a turntable (not shown) through the second turntable 3, the second turntable 3 of the present embodiment is mounted on the first turntable 2 and rotates synchronously with the first turntable 2, and the first turntable 2 and the second turntable 3 can be connected in various ways, such as pin connection, key connection, etc., which is not described in more detail in the present embodiment.
The bradyseism CD player of above-mentioned structure through set up first carousel 2 in 3 lower parts of second carousel, first carousel 2 passes through the belt and is connected with the motor to first carousel 2 rotates and drives upper second carousel 3 and rotate, has promoted and has only driven the vibrations that second carousel 3 rotated and bring by the belt.
Based on the above structure, in order to further reduce the vibration, the present embodiment makes further improvements to the structure of the base 1 and the mounting structure of the first rotating disk 2.
Referring to fig. 2, the bottom of the chassis 11 of this embodiment is connected with a hollow center shaft 6 and a shaft cover 61 covering the bottom end of the center shaft 6, and a rotating shaft 62, a shaft sleeve 63 and a support ball 64 with a smooth surface are installed in the center shaft 6; the supporting ball 64 is arranged on the shaft cover 61 and can be matched with the shaft cover 61 in a rolling way; the upper end of the rotating shaft 62 of the embodiment is connected with the first rotating disc 2, and the lower end is abutted with the supporting ball 64; the shaft sleeve 63 is sleeved outside the rotating shaft 62 and is in clearance fit with the rotating shaft 62, the first rotating disc 2 is installed through the rotating shaft 62, and the rotating shaft 62 is supported through the shaft sleeve 63 and the supporting balls 64.
As a preferred embodiment of the present embodiment, the supporting ball 64 of the present embodiment is made of porcelain with a smooth surface, or a sphere made of other chemically stable and structurally strong materials, and similarly, the shaft sleeve 63 of the present embodiment is also preferably made of a ceramic material, so that the inner wall of the shaft sleeve 63 can be smooth. In order to counteract the vibration of the first rotary disk 2, the present embodiment provides a certain buffer to the vibration of the rotary shaft 62 by the rolling of the smooth supporting balls 64, and can reduce the friction at the bottom end of the rotary shaft 62, and can prevent the rotary shaft 62 from generating larger deflection and vibration while preventing the vibration from being transmitted to the second rotary disk 3.
As a preferred embodiment of the present embodiment, in order to reduce friction and collision between the rotating shaft 62 and the shaft sleeve 63, the inner wall of the shaft sleeve 63 of the present embodiment is provided with an oil guiding groove (not shown in the figure), the oil guiding groove is filled with lubricating oil, accordingly, in order to store the lubricating oil flowing out from the oil guiding groove, the present embodiment is provided with an oil storage portion 611 for storing the lubricating oil in the shaft cover 61, and the oil storage portion 611 may be an oil storage groove.
As a preferred embodiment of the present embodiment, the oil guiding grooves of the present embodiment are arranged in a spiral shape in the axial direction of the sleeve 63, so as to achieve uniform distribution of oil on the inner wall of the bottom bracket 6.
In addition, in order to avoid the exposure of oil, a sealing member 631 hermetically engaged with the rotating shaft 62 is disposed at the top of the sleeve 63 in this embodiment, the sealing member 631 in this embodiment is preferably a felt pad or other structure, which can buffer the vibration of the rotating shaft 62 to a certain extent, and it is not suitable for the embodiment to use a sealing bearing to support the rotating shaft 62 and seal the central shaft 6, so as to prevent the vibration of the rotating shaft 62 from being transmitted from the first rotating disk 2 to the second rotating disk 3.
In order to realize the automation of the record player, the present embodiment further improves the tone arm device 7, and the tone arm device 7 of the present embodiment includes a rotating base 71, a lifting mechanism 72, a tone arm mechanism 73, and a stylus mechanism 74; the rotary base 71 is mounted on the tone arm support 111, and the rotary base 71 may be any one of the existing mounting base structures capable of rotating, for example, a motor or other components capable of outputting torque to drive the base body to rotate.
The elevating mechanism 72 of the present embodiment is mounted on the rotating base 71, the elevating mechanism 72 may be a micro-electric rod or the like, and the tone arm mechanism 73 of the present embodiment has one end mounted on the elevating mechanism 72 and the other end mounted with the stylus mechanism 74. The rotating base 71 of the present embodiment can drive the lifting mechanism 72 and the tone arm mechanism 73 to rotate, the lifting mechanism 72 can drive the tone arm mechanism 73 to lift, when music needs to be played, the tone arm mechanism 73 is rotated to a playing position through the rotating base 71, and then the tone arm mechanism 73 is lowered to be in contact with a turntable through the lifting mechanism 72 to play the music.
Accordingly, the vinyl record of this embodiment includes a control mechanism (not shown), the control mechanism of this embodiment is respectively connected to the rotating base 71 and the lifting mechanism 72 to control the actions of the two, the control mechanism of this embodiment may be a conventional structure such as a controller or a PLC control circuit, and therefore the specific structure and operation principle of the control mechanism are not described in this embodiment.
Based on the above structure, the inventor finds that, since the conventional black tape player generally does not have a cover to protect the structure of the player, the error operation of children is easy to occur, or the stylus mechanism 74 is worn due to the contact with the tone arm, and the like, the structure of the present embodiment is improved in order to better protect the tone arm device 7.
Referring to fig. 3, the tone arm unit 7 of the present embodiment further includes a lock mechanism 75, and the lock mechanism 75 of the present embodiment is mounted on the rotary base 71 and located below the tone arm mechanism 73, and the lock mechanism 75 of the present embodiment rotates in synchronization with the tone arm mechanism 73.
Further, the tone arm mechanism 73 of the present embodiment includes a second driving part 731 and a rod 732, the second driving part 731 is mounted on the lifting mechanism 72 and is used for driving the rod 732 to extend and retract horizontally, and the second driving part 731 may also be a cylinder or an electric rod.
The rod body 732 of this embodiment is provided with a first locking portion 7321 and a second locking portion 7322, both the first locking portion 7321 and the second locking portion 7322 can cooperate with the locking mechanism 75 to realize locking and fixing of the rod body 732, and a preset interval is provided between the first locking portion 7321 and the second locking portion 7322, and the interval is smaller than the extension stroke of the second driving portion.
The lifting mechanism 72 of the present embodiment is capable of lifting the tone arm mechanism 73 between a first height and a second height under the control of the control mechanism, and the first height is lower than the second height.
After the playback is finished, the rotating base 71 of this embodiment drives the rod 732 to rotate to the non-operating position, and the rod 732 of this embodiment retracts to the first position, and then the lifting mechanism 72 drives the rod 732 to descend to the first height, at this time, the locking mechanism 75 of this embodiment is locked and matched with the first locking portion 7321 to fix the rod 732, and prevent the rod 732 from extending too long, so as to protect the rod 732 to a certain extent, and prevent a child from rotating the rod 732 by a mistake, thereby preventing the needle mechanism 74 from being worn and the like due to touching the tone arm.
When a player needs to play, the rotating base 71 of this embodiment drives the rod 732 to rotate to a working position (i.e., above the turntable), at this time, the second driving part 731 is required to drive the rod 732 of this embodiment to extend to the second position, and the lifting mechanism 72 drives the rod 732 to descend to the first height, at this time, the locking mechanism 75 is locked and matched with the second locking portion 7322 to fix the rod 732, and achieve the child-lock function, so as to avoid the damage of the stylus mechanism 74 due to misoperation.
Specifically, in the present embodiment, the first locking portion 7321 may be a first locking hole in the drawing, and similarly, the second locking portion 7322 in the present embodiment may be a second locking hole in the drawing. Accordingly, the locking mechanism 75 of the present embodiment includes a locking tongue 751 capable of engaging with the first locking hole and the second locking hole.
As a preferred embodiment of the present embodiment, the latch 751 of the present embodiment is provided with an elastic support portion 7511 for supporting the lever 732, so that the lever 732 can be supported and protected, and the latch can also serve as a buffer when the lever 732 is touched by an external force, thereby preventing the lever 732 from being rigidly deformed.
Based on the locking mechanism 75, the inventor has found that the tone quality of the disc player is directly related to the pressure between the stylus mechanism 74 and the disc, and that if the pressure is too high or too low, the tone quality is impaired, and therefore, it is necessary to maintain the pressure between the disc and the stylus mechanism 74 within a reasonable range during playback.
Therefore, the locking mechanism 75 is further improved in this embodiment, that is, the locking mechanism 75 of this embodiment includes a height adjusting component 752, the height adjusting component 752 is connected to the elastic support portion 7511, and the height adjusting component 752 may be an electrical control component such as a micro telescopic rod, and is controlled by the control mechanism of this embodiment to perform the function of finely adjusting the height of the elastic support portion 7511.
Accordingly, the stylus mechanism 74 of the present embodiment is provided with a pressure detecting member (not shown) for contacting the turntable platter, and the pressure detecting member is connected with a control mechanism, which is connected with the height adjusting member 752 and controls the height adjusting member 752 to operate by a pressure value detected by the pressure detecting member.
Specifically, the pressure detecting means of the present embodiment may be a pressure sensor, and when the pressure sensor detects that the pressure between the stylus and the turntable is too large or too small, the control mechanism of the present embodiment sends a control command to the height adjusting means 752, and the height adjusting means 752 of the present embodiment performs fine adjustment of the height of the elastic support portion 7511.
Based on the above structure, the inventor finds that although the above structure can play a role in damping vibration, the supporting ball 64 still rolls to a certain extent under the vibration of the rotating shaft 62, and the rotating shaft 62 still transmits part of the un-cancelled vibration to the upper layer structure, so that the embodiment makes a further improvement on the CD player.
Referring to fig. 2, the bradyseism singulator of this embodiment further includes an elastic clamping device 8, the elastic clamping device 8 of this embodiment is located below the shaft sleeve 63 and is installed on the inner wall of the central shaft 6, the installation mode may be an insertion mode or other connection mode, the supporting ball 64 is clamped by the elastic clamping device 8, and partial displacement of the supporting ball 64 is offset by the elasticity of the elastic clamping device 8, so that the vibration displacement of the rotating shaft 62 can be reduced, the bradyseism effect is further improved, and the playback effect is further improved.
However, the inventor finds that, since the elastic clamping device 8 needs to be installed in the middle shaft 6 first, and then the supporting ball 64 and the shaft cover 61 are installed, but the supporting ball 64 is installed in the elastic clamping device 8, due to the deformation characteristic of the elastic clamping device 8, the supporting ball 64 is easy to move down after squeezing the elastic clamping device 8, and the supporting ball 64 is easy to drop without installing the shaft cover 61, in addition, the clamping force of the existing elastic clamping device 8 is easy to partially fail due to long-term use, and the clamping force of the elastic clamping device 8 cannot be adjusted, so that the required cushioning effect cannot be achieved, and thus the structure of the elastic clamping device 8 is improved in the present embodiment.
As shown in fig. 4 and 5 in conjunction, the elastic clamp device 8 of the present embodiment includes a mounting cover 81, a plurality of elastic clamps 82, and a transmission cover 83; the mounting cover 81 and the transmission cover 83 of the present embodiment are similar to a disc-shaped structure, and the mounting cover 81 is connected to the inner wall of the middle shaft 6.
The mounting cover 81 and the transmission cover 83 of the present embodiment are both provided with through holes for the rotating shaft 62 to pass through; the plurality of elastic clamping pieces 82 of the embodiment are installed on the installation cover 81 at intervals along the circumferential direction, the elastic clamping pieces 82 are provided with a first end and a second end which are opposite, the second ends of the plurality of elastic clamping pieces 82 surround a limiting hole 84 structure, and the transmission cover 83 covers the installation cover 81.
In the embodiment, the shaft cover 61 is in threaded connection with the bottom end of the center shaft 6, the shaft cover 61 is provided with the insertion portion 612, the transmission cover 83 is provided with the insertion hole 831 (not shown in the figure) matched with the insertion portion 612, and when the shaft cover 61 is screwed and installed on the center shaft 6, the insertion portion 612 is in limit fit with the insertion hole 831, so that the shaft cover 61 and the transmission cover 83 rotate synchronously, and the hole diameter of the limit hole 84 is gradually reduced to clamp the support ball 64.
During assembly, the supporting ball 64 can be supported when the shaft cover 61 is installed through the structure, the supporting ball 64 is not clamped by the elastic clamping device at the beginning, the supporting ball 64 cannot deviate from the upper position and the lower position, the shaft cover 61 can be installed in a screwing step through a smart structure, and the supporting ball 64 is clamped by the elastic clamping device. In addition, corresponding marks, namely a clamping mark and an adjusting mark (not shown in the figure), can be arranged on the middle shaft 6, and the adjusting mark is arranged above the clamping mark, when the upper end of the shaft cover 61 of the embodiment is screwed to the clamping mark, the elastic clamping device clamps the supporting ball 64 and does not need to be screwed again; when the clamping force of the elastic clamping device is perceived to be loose, the shaft cover 61 can be continuously screwed so that the upper end of the shaft cover 61 approaches the adjustment mark.
As shown in fig. 5, the clamping function of the elastic clamp 82 of the present embodiment is achieved by the following structure: the first end of the elastic clamping member 82 of the present embodiment is provided with a first connecting portion 821, and correspondingly, the transmission cover 83 of the present embodiment is provided with a plurality of second connecting portions 832 at uniform intervals along the circumferential direction, and the first connecting portion 821 and the second connecting portions 832 are connected by a first connecting shaft 85.
Further, the elastic clamping member 82 of the present embodiment is provided with a third connecting portion 823 between the first end and the second end, and accordingly, the mounting cover 81 of the present embodiment is provided with a plurality of fourth connecting portions 811 at regular intervals along the circumferential direction, and the third connecting portion 823 is connected to the fourth connecting portions 811 by the second connecting shaft 86.
Specifically, the first connecting portion 821, the second connecting portion 832, the third connecting portion 823 and the fourth connecting portion 811 of the present embodiment may be each of a shaft hole structure in the drawings.
As a preferred embodiment of the present embodiment, in order to improve the adaptability of the elastic clamping members 82 to the support balls 64, the second end of each elastic clamping member 82 of the present embodiment is provided with a clamping surface 822, the clamping surfaces 822 of the plurality of elastic clamping members 82 can enclose a circular ring, and the radial dimension of the circular ring can be enlarged and reduced by the rotation of the plurality of elastic clamping members 82 around the second connecting shaft 86.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A bradyseism CD player, including base, first rotary table, second rotary table, first drive unit and drive unit; the first rotating disc is rotatably arranged above the base, and the first driving part is arranged in the base; the transmission component is in transmission connection with the first driving component and the first rotary disc respectively; the second turntable is used for mounting a turntable and is mounted on the first turntable and synchronously rotates with the first turntable;
the base comprises a chassis and a support connected to the bottom of the chassis; the bottom of the chassis is provided with a hollow center shaft and a shaft cover which is covered at the bottom end of the center shaft, and a rotating shaft, a shaft sleeve and a supporting ball with a smooth surface are arranged in the center shaft; the supporting ball is arranged on the shaft cover and is in rolling fit with the shaft cover; the upper end of the rotating shaft is connected with the first rotating disc, and the lower end of the rotating shaft is abutted against the supporting ball; the shaft sleeve is sleeved outside the rotating shaft.
2. The buffering singing machine of claim 1, wherein the inner wall of the shaft sleeve is provided with an oil guide groove, and the oil guide groove is filled with lubricating oil.
3. The buffering singing machine of claim 2, wherein the oil guide grooves are spirally arranged in the axial direction of the shaft sleeve.
4. The buffering singing machine of claim 2, wherein a sealing element is disposed on the top of the shaft sleeve and is in sealing engagement with the rotating shaft.
5. The buffering singing machine of claim 1, wherein an oil storage portion is provided in the shaft cover, and lubricating oil is stored in the oil storage portion.
6. The buffering singulator of claim 1, wherein said number of supports is at least two, wherein one of said supports has said first drive member mounted therein.
7. The bradyseis singulator of claim 1 wherein said support balls are made of a ceramic material; and/or the bushing is made of a ceramic material.
8. The buffering singing machine of claim 1, wherein a shock absorbing member is provided at the bottom of the support.
9. A bradyseism record player as claimed in any of claims 1 to 8, including a tone arm support and tone arm means, said tone arm support being integrally connected to said base;
the tone arm device comprises a rotating seat, a lifting mechanism, a tone arm mechanism and a tone needle mechanism; the rotating seat is arranged on the tone arm bracket; the lifting mechanism is arranged on the rotating seat; one end of the tone arm mechanism is installed on the lifting mechanism, and the other end of the tone arm mechanism is provided with the stylus mechanism.
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| CN202011080197.6A CN112185427B (en) | 2020-10-10 | 2020-10-10 | Bradyseism record player |
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| CN202011080197.6A CN112185427B (en) | 2020-10-10 | 2020-10-10 | Bradyseism record player |
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| CN112185427B true CN112185427B (en) | 2021-10-01 |
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| WO2001091118A1 (en) * | 2000-05-22 | 2001-11-29 | Clarion Co., Ltd. | Disk player |
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| JPS58185005A (en) * | 1982-04-23 | 1983-10-28 | Audio Technica Corp | Turntable assembly in record player |
| CN2655581Y (en) * | 2003-07-08 | 2004-11-10 | 亚弘电科技股份有限公司 | digital audio player |
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| CN112185427A (en) | 2021-01-05 |
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