CN206439581U - A kind of reducing pulley and its lowering or hoisting gear - Google Patents
A kind of reducing pulley and its lowering or hoisting gear Download PDFInfo
- Publication number
- CN206439581U CN206439581U CN201720012567.XU CN201720012567U CN206439581U CN 206439581 U CN206439581 U CN 206439581U CN 201720012567 U CN201720012567 U CN 201720012567U CN 206439581 U CN206439581 U CN 206439581U
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- disc
- lid
- sliding block
- circumferential
- reducing pulley
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Abstract
The utility model provides a kind of reducing pulley and its lowering or hoisting gear, reducing pulley includes support, disc and several sliding blocks, disc is rotatably arranged on support, and several sliding blocks radially can be slidably disposed within the card of disc, and the lateral surface of sliding block is arc surface;Sliding block is arranged at intervals in the circumferential, and the arc surface of several sliding blocks is distributed on same circumference or class circumference and then constitutes the branch of the rope that is used to being intertwined and connected and holds round;The reducing pulley also includes promoting the sliding block radially synchronizing moving and then to change the adjusting means of the support circular diameter size.The reducing pulley structure that the utility model is provided is simple, pass through the diameter of adjustable pulley, so as to change torque on the premise of external force is certain, adjusted from the size for realizing different support forces, so as to the lifting demand suitable for different size and weight product.
Description
Technical field
The utility model is related to display elevating mechanism technical field, is filled more particularly, to a kind of reducing pulley and its lifting
Put.
Background technology
In order that the position of display can quickly adjust the position that display is put according to the difference of user
And its height, it is adapted to viewing needs, display needs supporting lowering or hoisting gear to be supported.The quality of lowering or hoisting gear is directly affected
To the quality of complete machine, rational lowering or hoisting gear is not only able to provide more preferably more comfortable use condition to user, while also can
It is enough to reduce the size to greatest extent, save space.
Power lowering or hoisting gear can much be set up by having in the market, using drawing and pulling type structure, and pass through internal fixed force spring
To support the weight of display.With the fast development of display screen technology, the manufacturing cost of display screen is more and more lower, while with
Size requirement of the family to display screen, which is also increasingly pursued, maximizes, i.e. in the market prevalence or the size of main product is increasing,
Thus requiring the resilient support part of the support member of display screen has bigger support force.
And slide rail type of the prior art can set up power lowering or hoisting gear generally using fixed force spring as support force offer portion
Part is come the display above supporting.It is a kind of current special extension spring that fixed force spring, which is also known as constant force spring, is also known as vortexed
Spring, it is that (difference of itself and volute spring is its scroll portion by another similar plane scroll spring also known as clockwork spring
Be not adjacent to mutually per coil spring) change and come, constant force volute spring includes an elongate thin metal elastic etc. with outward appearance width
Property piece wind the multi-turn to be formed and often enclose between be mutually adjacent to, the scroll portion of profile generally hollow cylindrical and by scroll portion most
Outer layer metal piece extends one section of a stretching end, is mainly used in all kinds of bascule such as up and down balance systems for requiring constant force output and fills
Put, carbon brush for electric machine spring etc..Its feature is that the spring tension of output is more constant, and tension variations are minimum.When actual use all
It is directly to open constant force spring stretching to make straight-line displacement campaign, and fixed force spring is exported constant thrust.
And be different in the weight of different vendor and the display of different size, thus, it is desirable to manufacture different perseverances
Determine the lowering or hoisting gear of thrust to support, i.e., the same power of setting lowering or hoisting gear can not meet different size display lift adjustment
Demand, the versatility thereby resulted between different displays is poor, thereby results in production cost lifting, and when more switching display
Its support means must be changed simultaneously, that is, causes certain energy waste.
Utility model content
The purpose of this utility model is to provide a kind of reducing pulley and its lowering or hoisting gear, to solve to exist in the prior art
The same power of setting lowering or hoisting gear can not meet the technical problem of different size display lift adjustment demand.
In order to solve the above technical problems, a kind of reducing pulley that the utility model is provided includes support, disc and some
Individual sliding block, disc is rotatably arranged on support, and several sliding blocks radially can be slidably disposed within the card of disc,
The lateral surface of sliding block is arc surface;Sliding block is arranged at intervals in the circumferential, and the arc surface of several sliding blocks is distributed in same circumference
Or on class circumference and then constitute the branch of rope of being used to being intertwined and connected and hold round.
Further, the groove for accommodating connecting rope is provided with the arc surface of the sliding block.
Further, several described sliding blocks are uniformly arranged in the circumferential.
Further, the quantity of the sliding block is 3-6 blocks.
Further, the reducing pulley also includes promoting the sliding block radially synchronizing moving and then the change support
The adjusting means of circular diameter size.
Further, radially-directed structure is provided between the sliding block and the disc.
Further, the radially-directed structure is the guide groove being disposed radially and the radial guiding coordinated with the guide groove
To block;Guide groove is arranged on the sliding block or the disc, and radially-directed block is arranged on the disc or described
On sliding block.The guide groove is linear pattern or shaped form.
Further, the cam mechanism that the adjusting means moves radially for the drive sliding block.
Further, the adjusting means includes the lid that is oppositely arranged with the disc, lid rotatably arranged with
On support, lid is coaxially disposed with the disc, and the sliding block is clamped between disc and lid;On the lid
Circumferential guiding groove is provided with, the sliding block is provided with and the circumferential week for being oriented to groove cooperation on the end face of lid side
To guide pad;Lid relatively rotates with the disc, and the circumferential guide pad of sliding block is circumferentially oriented to phase in groove described
To sliding, the radially-directed block is relative in guide groove to be slided, and then promotes sliding block moving radially along disc.
Further, the adjusting means includes the lid that is oppositely arranged with the disc, lid rotatably arranged with
On support, lid is coaxially disposed with the disc, and the sliding block is clamped between disc and lid;On the lid
Circumferential guide protrusions bar is provided with, the sliding block is provided with the end face of lid side to be coordinated with the circumferential guide protrusions bar
Neck;Lid relatively rotates with the disc, and the neck of sliding block occurs to slide relatively with the circumferential guide protrusions bar
Dynamic, the radially-directed block is relative in guide groove to be slided, and then promotes sliding block moving radially along disc.
Further, the circumferential guide protrusions bar and the circumferential groove that is oriented to is involute-type or Archimedes spirals
Type.
Further, the adjusting means includes the rotating mechanism for being used to rotate the lid.
Further, the rotating mechanism is the connecting shaft and regulation handle being coaxially disposed with the lid.
Further, the rotating mechanism is gear adjustment structure, and gear adjustment structure includes the active set on support
Adjust gear and for rotating on the drive mechanism for actively adjusting gear, the excircle of the lid or outer face
It is provided with and actively adjusts the gear structure that gear is engaged with described.
Further, the drive mechanism is the manual rotation mechanisms such as knob, rotary handle, or stepper motor,
The electric driving mechanisms such as servomotor.
Further, the reducing pulley also includes being used to prevent what the lid relatively rotated with the disc
Retaining mechanism or locking mechanism.
Further, the lid is fixed with being respectively arranged with coaxial pin-and-hole, the retaining mechanism on the disc
Position pin, alignment pin inserts the lid with the pin-and-hole on the disc and then locks the lid and the disc simultaneously
It is fixed.
Further, the central shaft hole opening's edge of the lid is in the axial boss that disc side is provided with annular, institute
Being sleeved in the axial boss for disc is stated, is interference fit between the axis hole of axial boss and the disc, it is described
Locking mechanism is the interference fit;After external force overcomes the frictional force of interference fit by the adjusting means, disc and institute
Lid is stated to relatively rotate.
Further, some the circumferential guiding grooves or circumferential guide protrusions bar are set on the lid;It is some
The sliding block is identical in the length of disc radial direction, and several described sliding blocks are separately positioned on the different circumferential guiding grooves
On interior or circumferential guide protrusions bar.
Further, the circumferential guiding groove or circumferential guide protrusions bar are set on the lid;Some institutes
The length that sliding block is stated in disc radial direction is different, and several described sliding blocks are separately positioned on the circumferential guiding groove or circumference
On the diverse location of guide protrusions bar.
A kind of lowering or hoisting gear with above-mentioned reducing pulley, lowering or hoisting gear includes constant force wind spring and the lifting set on support
Seat, constant force wind spring is connected by connecting rope, reducing pulley and reel with lifting seat, and lowering or hoisting gear is real using the reducing pulley
Now support the adjustment of torque.
Using above-mentioned technical proposal, the utility model has the advantages that:
The reducing pulley structure that the utility model is provided is simple, by the diameter of adjustable pulley, so as in external force one
Change torque on the premise of fixed, adjusted from the size for realizing different support forces, so as to suitable for different size and again
The lifting demand of volume production product.
Brief description of the drawings
Below will be right in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that, describe below
In accompanying drawing be some embodiments of the present utility model, for those of ordinary skill in the art, do not paying creativeness
On the premise of work, other accompanying drawings can also be obtained according to these accompanying drawings.
The decomposing schematic representation for the reducing pulley that Fig. 1 provides for the utility model embodiment;
The structural representation for the sliding block that Fig. 2 provides for the utility model embodiment;
The polycrystalline substance schematic diagram for the disc that Fig. 3 provides for the utility model embodiment;
The structural representation for the lid that Fig. 4 provides for the utility model embodiment;
The structural representation for the another embodiment lid that Fig. 5 provides for the utility model embodiment.
Reference:
11- discs;11a- guide grooves;
12- sliding blocks;12a- grooves;
12b- radially-directed blocks;12c- circumference guide pads;
12d- necks;
30- lids;30a- is circumferentially oriented to groove;
30b- circumference guide protrusions bars;30c- gear structures;
30d- axial boss;30e- flat recesses.
Embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " interior ", " outer " are, based on orientation shown in the drawings or position relationship, to be only
Described for the ease of description the utility model and simplifying, rather than to indicate or imply that signified device or element must have specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that indicating or implying relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection;Can be mechanical connection or electrical connection;Can be joined directly together, can also be indirectly connected to by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
Explanation is further explained to the utility model with reference to specific embodiment.
As Figure 1-4, a kind of reducing pulley that the present embodiment is provided includes:If support (not shown), disc 11 and
Dry sliding block 12, disc is rotatably arranged on support, and several sliding blocks 12 can radially be slidably disposed within disc 11
Card on, the lateral surface of sliding block 12 is arc surface;Sliding block 12 is arranged at intervals in the circumferential, and the arc surface of several sliding blocks 12
Being distributed on same circumference or class circumference and then constituting one is used to wind and support the branch of connecting rope to hold round.
The groove 12a for accommodating connecting rope is provided with the arc surface of sliding block 12.
Several sliding blocks 12 are uniformly arranged in the circumferential.
The quantity of sliding block 12 is 4 pieces.
Radially-directed structure is provided between sliding block 12 and disc 11.
Radially-directed structure is the linear pattern guide groove 11a being arranged on disc 11, is arranged on the radial direction on sliding block 12
Guide pad 12b.Linear pattern guide groove 11a and radially-directed block 12b being radially arranged along disc 11.
Reducing pulley also includes promoting sliding block 12 radially synchronizing moving and then the regulation dress of change support circular diameter size
Put.Adjusting means is the cam mechanism moved radially with movable slider 12.
Specifically, adjusting means includes the lid 30 being oppositely arranged with disc 11, and lid 30 is rotatably arranged in
On support, lid 30 is coaxially disposed with disc 11, and sliding block 12 is clamped between disc 11 and lid 30;Set on lid 30
Circumferential guiding groove 30a is equipped with, sliding block 12 is provided with the end face of the side of lid 30 is oriented to what groove 30a coordinated with circumferential
Circumferential guide pad 12c;Lid 30 relatively rotates with disc 11, and the circumferential guide pad 12c of sliding block 12 is recessed in circumferentially guiding
Relative in groove 30a to slide, radially-directed block 12b is relative in linear pattern guide groove 11a to be slided, and then promotes sliding block 12 along disk
Body 11 is moved radially.
And Fig. 5 is to be also provided with circumferential guide protrusions bar 30b on the another embodiment of lid 30, lid 30,
Sliding block 12 is provided with the neck 12d coordinated with circumferential guide protrusions bar on the end face of the side of lid 30;Lid 30 and disc
11 relatively rotate, and with circumferential guide protrusions bar 30b relative slip occurs for the neck 12d of sliding block 12, and radially-directed block 12b exists
Relative in linear pattern guide groove 11a to slide, both interact and then promotion the moving radially along disc 11 of sliding block 12.
In addition, adjusting means includes the rotating mechanism for rotating cover 30.Rotating mechanism is to be coaxially disposed with lid 30
Connecting shaft and regulation handle.Or, rotating mechanism is gear adjustment structure, and gear adjustment structure includes the master set on support
Dynamic regulation gear (not shown) and the drive mechanism (not shown) that gear is actively adjusted for rotating, the excircle of lid 30
Or be provided with end face outside with actively adjusting the gear structure 30c that gear is engaged.
Wherein, drive mechanism is the manual rotation mechanisms such as knob, rotary handle, or stepper motor, servomotor
Deng electric driving mechanism.
Reducing pulley also includes retaining mechanism or the locking for being used to prevent lid 30 from relatively rotating with disc 11
Structure.
Locking mechanism is various informative, and such as lid 30 is with being respectively arranged with coaxial pin-and-hole, retaining mechanism on disc 11
Alignment pin, alignment pin inserts lid 30 and locked with the pin-and-hole on disc 11 and then with disc 11 lid 30 simultaneously.
Or, lid 30 is set on same main shaft with disc 11, as shown in figure 4, at the central shaft hole opening's edge of lid 30
The axial boss 30d of annular is provided with the side of disc 11, disc 11 is sleeved on axial boss 30d, axial boss
It is interference fit between the axis hole of 30d and disc 11, locking mechanism is the interference fit, generally, disc 11 and lid 30
Synchronous axial system;And after external force overcomes the frictional force of interference fit by adjusting means, disc 11 occurs relatively with lid 30
Rotate, and then the torque adjustment of constant force wind spring can be realized.
30e is to be arranged on axial boss 30d ends to be provided with the flat recess coordinated with straight screwdriver.Flat recess 30e
Can as rotating cover 30 rotational structure.
As shown in figure 4, setting a circumferential guiding groove 30a (or circumferential guide protrusions bar) on lid 30;Zhou guide
To groove 30a multi-turn is wound around central axis;Several sliding blocks 12 are separately positioned on the circumferential diverse location for being oriented to groove 30a
On, held round to realize that the cylindrical side of sliding block is in one unified branch of composition, length of some sliding blocks 12 in disc radial direction
Degree is different.
The setting of this kind of method, rotates the lid 30 of same angle, and the displacement of sliding block 12 diametrically is smaller, thus
More subtly adjusting for torque can be realized.
And shown in Fig. 5, some circumferential guide protrusions bar 30b (or circumferential guiding groove) are set on lid 30;It is some
Sliding block 12 is identical in the length of disc radial direction, and several sliding blocks 12 are correspondingly arranged at different circumferential guide protrusions bars respectively
On 30b.And the setting of this kind of embodiment, the lid 30 of same angle is rotated, the displacement of sliding block 12 diametrically is larger,
It is possible thereby to realize the quick regulation of torque.
The reducing pulley structure that the utility model is provided is simple, by the diameter of adjustable pulley, so as in external force one
Change torque on the premise of fixed, adjusted from the size for realizing different support forces, so as to suitable for different size and again
The lifting demand of volume production product.
Finally it should be noted that:Various embodiments above is only limited to illustrate the technical solution of the utility model, rather than to it
System;Although the utility model is described in detail with reference to foregoing embodiments, one of ordinary skill in the art should
Understand:It can still modify to the technical scheme described in foregoing embodiments, or to which part or whole
Technical characteristic carries out equivalent substitution;And these modifications or replacement, the essence of appropriate technical solution is departed from this practicality newly
The scope of each embodiment technical scheme of type.
Claims (10)
1. a kind of reducing pulley, it is characterised in that including support, disc and several sliding blocks, disc rotatably arranged with
On support, several sliding blocks radially can be slidably disposed within the card of disc, and the lateral surface of sliding block is arc surface;Sliding block
It is arranged at intervals in the circumferential, and the arc surface of several sliding blocks is distributed on same circumference or class circumference and then constitutes a use
Held round in the branch for the rope that is intertwined and connected;The reducing pulley also includes promoting the sliding block radially synchronizing moving and then to change described
Support the adjusting means of circular diameter size.
2. reducing pulley according to claim 1, it is characterised in that be provided with footpath between the sliding block and the disc
Directional guiding structure;The radially-directed structure is the guide groove being disposed radially and the radially-directed block coordinated with the guide groove;
Guide groove is arranged on the sliding block or the disc, and radially-directed block is arranged on the disc or the sliding block
On.
3. reducing pulley according to claim 2, it is characterised in that the adjusting means includes relative with the disc
The lid of setting, lid is rotatably arranged on support, and lid is coaxially disposed with the disc, and the sliding block is clamped in
Between disc and lid;Circumferential guiding groove is provided with the lid, the sliding block is set on the end face of lid side
Have and the circumferential circumferential guide pad for being oriented to groove cooperation;Lid relatively rotates with the disc, the circumference of sliding block
Guide pad is slided relatively in circumferential be oriented in groove, and the radially-directed block is relative in guide groove to be slided, and then is promoted
Sliding block is moved radially along disc;
Or, the adjusting means includes the lid being oppositely arranged with the disc, and lid is rotatably arranged on support,
Lid is coaxially disposed with the disc, and the sliding block is clamped between disc and lid;Week is provided with the lid
To raised item is oriented to, the sliding block is provided with the neck coordinated with the circumferential guide protrusions bar on the end face of lid side;
Lid relatively rotates with the disc, and with the circumferential guide protrusions bar relative slip occurs for the neck of sliding block, described
Radially-directed block is relative in guide groove to be slided, and then promotes sliding block moving radially along disc.
4. reducing pulley according to claim 3, it is characterised in that the circumferential guide protrusions bar and circumferential guiding groove
For involute-type or Archimedes spiral type.
5. the reducing pulley according to claim 3 or 4, it is characterised in that the adjusting means includes being used to rotate described
The rotating mechanism of lid;The rotating mechanism is the connecting shaft and regulation handle being coaxially disposed with the lid;Or, described turn
Motivation structure is gear adjustment structure, and gear adjustment structure actively adjusts gear and for rotating including what is set on support
State to be provided with the drive mechanism for actively adjusting gear, the excircle of the lid or outer face and actively adjust gear with described
The gear structure being engaged.
6. the reducing pulley according to claim 3 or 4, it is characterised in that the reducing pulley also includes being used to prevent institute
State retaining mechanism or locking mechanism that lid relatively rotates with the disc.
7. reducing pulley according to claim 6, it is characterised in that the central shaft hole opening's edge of the lid is in disc
Side is provided with the axial boss of annular, and the disc is sleeved in the axial boss, axial boss and the disk
It is interference fit between the axis hole of body, the locking mechanism is the interference fit;When external force was overcome by the adjusting means
It is full of after the frictional force of cooperation, disc relatively rotates with the lid.
8. the reducing pulley according to claim 3 or 4, it is characterised in that some circumferences are set on the lid
It is oriented to groove or circumferential guide protrusions bar;Some sliding blocks are identical in the length of disc radial direction, several described sliding blocks
It is separately positioned in the different circumferential guiding grooves or on circumferential guide protrusions bar.
9. the reducing pulley according to claim 3 or 4, it is characterised in that a Zhou guide is set on the lid
To groove or circumferential guide protrusions bar;Some sliding blocks are different in the length of disc radial direction, several described sliding blocks point
On the diverse location for not being arranged on the circumferential guiding groove or circumferential guide protrusions bar.
10. a kind of lowering or hoisting gear with any one of the claim 1-9 reducing pulley, it is characterised in that including on support
The constant force wind spring and lifting seat of setting, constant force wind spring are connected by connecting rope, reducing pulley and reel with lifting seat, lifting dress
Put the adjustment that support torque is realized using the reducing pulley.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720012567.XU CN206439581U (en) | 2017-01-05 | 2017-01-05 | A kind of reducing pulley and its lowering or hoisting gear |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720012567.XU CN206439581U (en) | 2017-01-05 | 2017-01-05 | A kind of reducing pulley and its lowering or hoisting gear |
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Publication Number | Publication Date |
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CN206439581U true CN206439581U (en) | 2017-08-25 |
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Application Number | Title | Priority Date | Filing Date |
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CN201720012567.XU Expired - Fee Related CN206439581U (en) | 2017-01-05 | 2017-01-05 | A kind of reducing pulley and its lowering or hoisting gear |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118136973A (en) * | 2024-03-06 | 2024-06-04 | 三一技术装备有限公司 | Needle winding mechanism and winding equipment |
-
2017
- 2017-01-05 CN CN201720012567.XU patent/CN206439581U/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN118136973A (en) * | 2024-03-06 | 2024-06-04 | 三一技术装备有限公司 | Needle winding mechanism and winding equipment |
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Legal Events
Date | Code | Title | Description |
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GR01 | Patent grant | ||
GR01 | Patent grant | ||
CF01 | Termination of patent right due to non-payment of annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20210105 |