CN108506463A - A kind of bidentate synchronous belt wheel device and its mounting structure - Google Patents
A kind of bidentate synchronous belt wheel device and its mounting structure Download PDFInfo
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- CN108506463A CN108506463A CN201810367394.2A CN201810367394A CN108506463A CN 108506463 A CN108506463 A CN 108506463A CN 201810367394 A CN201810367394 A CN 201810367394A CN 108506463 A CN108506463 A CN 108506463A
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- belt wheel
- synchronous belt
- wheel device
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 42
- 238000005096 rolling process Methods 0.000 claims description 38
- 238000003825 pressing Methods 0.000 claims description 14
- 238000009958 sewing Methods 0.000 claims description 13
- 230000003287 optical effect Effects 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
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- 239000002360 explosive Substances 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H55/00—Elements with teeth or friction surfaces for conveying motion; Worms, pulleys or sheaves for gearing mechanisms
- F16H55/32—Friction members
- F16H55/36—Pulleys
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Sewing Machines And Sewing (AREA)
- Pulleys (AREA)
Abstract
The present invention relates to a kind of bidentate synchronous belt wheel device and its mounting structures, it is arranged and all has the first pulley pedestal and the second wheeled base of external tooth including pairing, and it can be relative to the pressure regulating seat of first pulley pedestal rotation between the first pulley pedestal and second wheeled base, the pressure regulating seat and second wheeled base are fixedly linked, the bidentate synchronous belt wheel device has closed state and off-state, when the bidentate synchronous belt wheel device is the closed state, the first pulley pedestal, the pressure regulating seat and second wheeled base are rigid connection；When the bidentate synchronous belt wheel device is the off-state; the first pulley pedestal is separated with the pressure regulating seat and second wheeled base; the bidentate synchronous belt wheel device of the present invention gathers multi -function in integral whole; it occupies little space; the setting accuracy of torsion is high, sensitiveer to the protection of rotating shuttle.
Description
Technical field
The present invention relates to sewing machine manufacturing technology fields, and in particular to a kind of bidentate synchronous belt wheel device and its installation knot
Structure.
Background technology
Traditional mode in industrial sewing machine, shown in attached drawing 1, lower-left axis 1 ', bottom right axis 3 ' and safety clutch device
2 ' both sides are fastened by screw respectively, and bottom right axis 3 ' is fastened with lower axle synchronous pulley 5 ' by screw, and synchronous pulley 5 ' passes through
Baffle ring 4 ' separates left and right, and the left part of lower axle synchronous pulley 5 ' connect transmission with upper shaft synchronous pulley by synchronous belt, right
Side section is connect by synchronous belt with lower extension motor synchronous pulley, i.e., two synchronous belts are filled on synchronous pulley 5 ', thus by motor
Rotation be delivered separately to axis and lower axle.Lower-left axis 1 ' is connected by direct geared or indirectly with rotating shuttle, when rotating shuttle is stuck
When, lower-left axis 1 ' does not rotate, and so that the torsion that motor passes over is increased, when the safe torque value more than safety clutch device 2 '
When, two parts of safety clutch device 2 ' are detached from, and lower-left axis 1 ' is no longer influenced by the torsion that motor passes over, to protect rotating shuttle
It is not damaged.
Not only component part is more for above-mentioned traditional assembly mode, but also lower axle will be divided into lower-left axis 1 ' and bottom right axis 3 ' two
Root, in addition the tooth form of lower axle synchronous pulley 5 ' and modulus etc. must be identical, and otherwise difficulty of processing is very big, and which limit synchronous belts
And motor drive than selection, the cost of parts of complete component is also larger, and in addition part is more, processing and assembly cumulative errors
Bigger.
Invention content
The present invention provides a kind of bidentate synchronous belt wheel device, gathers multi -function in integral whole, occupies little space, torsion is set
Determine precision height, it is sensitiveer to the protection of rotating shuttle.
In order to achieve the above objectives, the technical solution adopted by the present invention is：A kind of bidentate synchronous belt wheel device, including pairing are set
Set and all have external tooth first pulley pedestal and the second wheeled base, be set to the first pulley pedestal and second belt wheel
And can be relative to the pressure regulating seat of first pulley pedestal rotation between pedestal, the outboard end of the first pulley pedestal, which is equipped with, to be used
With the fit structure being connected with external device (ED), the pressure regulating seat and second wheeled base are fixedly linked, the first pulley
Pedestal, the pressure regulating seat and second wheeled base have same rotation centerline, the external tooth of the first pulley pedestal
Quantity is not less than the external tooth quantity of second wheeled base, and the bidentate synchronous belt wheel device has closed state and disconnects shape
State, when the bidentate synchronous belt wheel device is the closed state, the first pulley pedestal, the pressure regulating seat and described the
Two wheeled bases are rigid connection；When the bidentate synchronous belt wheel device is the off-state, the first pulley pedestal
It is separated with the pressure regulating seat and second wheeled base.
Further, the first pulley pedestal has the first end cover board of the vertical rotation centerline, the pressure regulation
Seat tool has the second end cover board being oppositely arranged with the first end cover board, and what is coordinated on the second end cover board is equipped with for rolling
The through-hole that part passes through, the first end cover board are equipped with the circle for being embedded the rolling member to match with the through-hole
Hole, the bidentate synchronous belt wheel device further include drive the rolling member to be adjacent on the first end cover board elastic group
Part, when the bidentate synchronous belt wheel device is the closed state, the rolling member is arranged in the through-hole and the circle
Kong Zhong；When the bidentate synchronous belt wheel device is the off-state, the rolling member is located on the outside of the round hole.
Further, the diameter of the through-hole and the rolling member clearance fit, the round hole is less than the rolling member
Diameter, the quantity of the through-hole is three, between three its respective axial lines of the through-hole and the rotation centerline
Distance is different, on same cross section, the line of the center of through-hole described in each adjacent two and the second end cover plate central its it
Between angle be 120 °.
Further, the first pulley pedestal further includes set on the first end cover plate central and towards second band
The connecting pole that pedestal extends is taken turns, what is coordinated on the pressure regulating seat is equipped with the sleeve column for being penetrated for the connecting pole, the bidentate
Synchronous belt wheel device further includes the stop screw for penetrating the sleeve column and being threadedly coupled with the connecting pole, the stop screw with
The inner wall clearance fit of the sleeve column.
Further,：The stop screw includes successively along its length nut portion, is connected with the nut portion and is in
First shaft part of optical axis, and be connected with first shaft part and there is externally threaded second shaft part, the nut portion, described the
It is equipped with to realize multiple positioning steps of the pressure regulating seat axially position, the set between one shaft part and second shaft part
Column be respectively equipped with matched first hole section in the nut portion, with first shaft part it is matched second perforation and with institute
State the connection matched third hole section of column outer wall.
Further, second wheeled base is equipped with the perforation penetrated for the sleeve column, the outer wall of the sleeve column
Equipped with the positioning surface to be connected with second wheeled base, the positioning surface is the outboard end from the sleeve column in
Side end extends and intilted inclined surface, and the angle of inclination of the inclined surface is 1 °~2.5 °, second wheeled base
It is equipped with the connecting hole for radially screwing in the positioning surface for the first trip bolt.
Further, the shape coordinated between the first pulley pedestal, second wheeled base and the pressure regulating seat
At the accommodating chamber positioned at second end cover board side, the accommodating chamber is set to institute in annular shape, the elastic parts cooperation
It states in accommodating chamber and is covered on the rolling member.
Further, the elastic parts includes set gradually from the rolling member towards second wheeled base
One pressing plate, cushion and the second pressing plate, first pressing plate, the cushion and second pressing plate are sheathed on described
On sleeve column.
The present invention also provides a kind of mounting structure of above-mentioned bidentate synchronous belt wheel device, the outsides of the first pulley pedestal
It is connected with the cooperation of a side end of lower shaft of sewing machine, the upper axis is equipped with upper shaft synchronous pulley, the bidentate synchronous pulley dress
Set and be additionally provided with driving motor, the output end of the driving motor is equipped with motor synchronous pulley, the motor synchronous pulley with it is described
It is connected by the first synchronous belt between second wheeled base, is passed through between the first pulley pedestal and the upper shaft synchronous pulley
Second synchronous belt is connected, and the driving motor is set to the side of the baseplate of sewing machine.
Further, second wheeled base is torque input end, and the first pulley pedestal is torque output, institute
State the outer number of teeth of first pulley pedestal described in the external tooth quantity ﹤ of the second wheeled base described in the external tooth quantity ﹤ of motor synchronous pulley
Amount.
After the above technical solution is adopted, the present invention has the following advantages that compared with prior art：
（1）Multiple functions are integrated in one, and occupy little space, and are easily assembled to, and are also easy to assembly line.
（2）More convenient to the setting of safe torsion, the setting accuracy of torsion is high, sensitiveer to the protection of rotating shuttle.
（3）Possibility is provided to provide different synchronous pulley tooth form combinations and a variety of transmission ratios.
（4）The purchase cost and machining accuracy of parts are compared existing conventional apparatus and are substantially reduced.
（5）Using the bidentate synchronous belt wheel device of the present invention, the lower axle of sewing machine only needs one, the concentricity effect after assembly
Fruit is more preferable.
Description of the drawings
Attached drawing 1 is the structural schematic diagram that lower axle is mutually assembled with safety clutch device in background of invention；
Attached drawing 2 is the axonometric drawing of the bidentate synchronous belt wheel device of the present invention；
Attached drawing 3 is the front view of the bidentate synchronous belt wheel device of the present invention；
Attached drawing 4 is the side view of the bidentate synchronous belt wheel device of the present invention；
Attached drawing 5 is the sectional view in the directions A-A in attached drawing 4；
Attached drawing 6 is the explosive view of the bidentate synchronous belt wheel device of the present invention；
Attached drawing 7 is the axonometric drawing of first pulley pedestal in the present invention；
Attached drawing 8 is the front view of first pulley pedestal in the present invention；
Attached drawing 9 is the sectional view in the directions B-B in attached drawing 8；
Attached drawing 10 is the axonometric drawing of the second wheeled base in the present invention；
Attached drawing 11 is the front view of the second wheeled base in the present invention；
Attached drawing 12 is the sectional view in the directions C-C in attached drawing 11；
Attached drawing 13 is the axonometric drawing of pressure regulating seat in the present invention；
Attached drawing 14 is the front view of pressure regulating seat in the present invention；
Attached drawing 15 is the sectional view in the directions D-D in attached drawing 14；
Attached drawing 16 is the structural schematic diagram of stop screw in the present invention；
Attached drawing 17 is the mounting structure schematic diagram of the bidentate synchronous belt wheel device of the present invention.
Wherein,
1 ', lower-left axis；2 ', safety clutch device；3 ' bottom right axis,；4 ', baffle ring；5 ', synchronous pulley；
100, bidentate synchronous belt wheel device；
1, first pulley pedestal；101, first end cover board；101a, round hole；102, connecting pole；103, connecting hole；2, the second band
Take turns pedestal；201, it perforates；3, pressure regulating seat；301, second end cover board；301a, through-hole；302, sleeve column；302a, the first hole section；
302b, the second hole section；302c, third hole section；302d, positioning surface；4, rolling member；5, stop screw；501, nut portion；502,
One shaft part；503, the second shaft part；6, the first trip bolt；7, the second trip bolt；8, the first pressing plate；9, cushion；10, second
Pressing plate；
200, lower axle；
300, upper axis；
400, upper shaft synchronous pulley；
500, driving motor；
600, motor synchronous pulley；
700, the first synchronous belt；
800, the second synchronous belt.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and embodiments.
As shown in Fig. 1 to Figure 17, a kind of bidentate synchronous belt wheel device 100 is suitably mounted on sewing machine, including pairing
Be arranged and all have external tooth first pulley pedestal 1 and the second wheeled base 2, be set to first pulley pedestal 1 and the second belt wheel base
And it can be relative to the pressure regulating seat 3 of the rotation of first pulley pedestal 1 between seat 2.The outboard end of first pulley pedestal 1 be equipped with to it is outer
The connected fit structure of part device, pressure regulating seat 3 and the second wheeled base 2 are fixedly linked.First pulley pedestal 1, pressure regulating seat 3 and
Second wheeled base 2 has same rotation centerline.The external tooth quantity of first pulley pedestal 1 is not less than the second wheeled base 2
External tooth quantity.
Bidentate synchronous belt wheel device 100 has closed state and off-state, when bidentate synchronous belt wheel device 100 is to be closed
When state, first pulley pedestal 1, pressure regulating seat 3 and the second wheeled base 2 are rigid connection；When bidentate synchronous belt wheel device 100 is
When off-state, first pulley pedestal 1 is separated with pressure regulating seat 3 and the second wheeled base 2.
In the present embodiment, the axial line of first pulley pedestal 1, pressure regulating seat 3 and the second wheeled base 2 is conllinear, and the
One wheeled base 1, the axial line of pressure regulating seat 3 and the second wheeled base 2 and rotation centerline are conllinear.
First pulley pedestal 1 has the first end cover board 101 of vertical rotary center line, and pressure regulating seat 3 has and first end cover
The second end cover board 301 that plate 101 is oppositely arranged.Coordinate on second end cover board 301 equipped with the through-hole passed through for rolling member 4
301a, first end cover board 101 are equipped with the round hole 101a for being embedded rolling member 4 to match with through-hole 301a.Bidentate is same
It further includes the elastic parts for driving rolling member 4 to be adjacent on first end cover board 101 to walk pulley arrangement 100, when bidentate synchronizes
When pulley arrangement 100 is closed state, rolling member 4 is arranged in through-hole 301a and round hole 101a；When bidentate synchronous pulley fills
Set 100 for off-state when, rolling member 4 is located at the outside round hole 101a.
In the present embodiment, the diameter of through-hole 301a and 4 clearance fit of rolling member, round hole 101a is less than the straight of rolling member 4
The quantity of diameter, through-hole 301a, rolling member 4 and round hole 101a is three.Three its respective axial lines of through-hole 301a with
The distance between rotation centerline difference.On same cross section, center and the second end cover board 301 of each adjacent two through-hole 301a
Angle of the line at center between it is 120 °.Whole device distribution of force can be made uniform in this way.
The hole chamfer that round hole 101a is contacted with rolling member 4, and to ensure good finish, to make rolling member
Effect stability when 4 and round hole 101a is detached from.
Round hole 101a may be set to be baltimore groove, and the notch diameter of baltimore groove is less than the diameter of rolling member 4.
Rolling member 4 in the present embodiment is preferably steel ball.
First pulley pedestal 1 further includes the connection set on 101 center of first end cover board and direction the second wheeled base 2 extension
Column 102, what is coordinated on pressure regulating seat 3 is equipped with the sleeve column 302 for being penetrated for connecting pole 102, and the length of sleeve column 302 is more than connecting pole
102 length.What connecting pole 102 coordinated is through in sleeve column 302, at this point, second end cover board 301 is opposite with first end cover board 101
And three through-hole 301a and three round hole 101a are corresponding one by one.
Bidentate synchronous belt wheel device 100 further includes the stop screw 5 for penetrating sleeve column 302 and being threadedly coupled with connecting pole 102,
The inner wall clearance fit of stop screw 5 and sleeve column 302.Stop screw 5 includes nut portion 501 and spiral shell successively along its length
Cap portion 501 is connected and in the first shaft part 502 of optical axis, and is connected with the first shaft part 502 and has externally threaded second shaft part
503, it is equipped with to realize the multiple of 3 axially position of pressure regulating seat between nut portion 501, the first shaft part 502 and the second shaft part 503
The inner wall of positioning step, sleeve column 302 is respectively equipped with and 501 matched first hole section 302a of nut portion and 502 phase of the first shaft part
Cooperation the second hole section 302b and with 102 matched third hole section 302c of connecting pole.In the present embodiment, nut portion 501
The diameter of the second shaft parts of diameter ＞ 503 of the first shaft parts of diameter ＞ 502.The length of first shaft part 502 is slightly larger than the second hole section
The length of 302b, after tightening stop screw 5, pressure regulating seat 3 is rotatable light sliding.
The outboard end of first pulley pedestal 1 is equipped with the connecting hole 103 penetrated for external connection shaft and can be along connection
The radial direction in hole 103 penetrates to by fixed first trip bolt 6 of connecting shaft, the axial line and rotation centerline of connecting hole 103
Collinearly.The torque input of first pulley pedestal 1 can be realized by connecting shaft.
Second wheeled base 2 is equipped with the perforation 201 penetrated for sleeve column 302, sleeve column 302 be equipped with to the second band
It is to extend and slope inwardly towards inside from the outboard end of sleeve column 302 to take turns pedestal 2 connected positioning surface 302d, positioning surface 302d
Inclined surface, the angle of inclination of inclined surface is 1 °~2.5 °, preferably 1.5 °.When pressure regulating seat 3 is mutually filled with the second wheeled base 2
Timing, can be by 2 phase of pressure regulating seat 3 and the second wheeled base by screwing in the second trip bolt 7 along the radial direction of the second wheeled base 2
It is fixed.In the present embodiment, positioning surface 302d is one, and there are three the second trip bolts 7, two the second trip bolts 7 therein
Front end face carry Inner arc, be suitble to cylindrical surface fastening, the front end of another the second trip bolt 7 is planar end surface, be suitble to and
Plane tightening is suitble to the positioning surface 302d tightenings with pressure regulating seat 3.By being provided with the positioning surface 302d at angle of inclination,
Under the action of elastic parts, self-locking function can be reached, prevent the loosening of the second trip bolt 7 and positioning.
The formation coordinated between first pulley pedestal 1, the second wheeled base 2 and pressure regulating seat 3 is located at second end cover board 301
The accommodating chamber of side, accommodating chamber are set in accommodating chamber and are covered on rolling member 4 in annular shape, elastic parts cooperation.Specifically
, elastic parts includes the first pressing plate 8, the cushion 9 and second set gradually from rolling member 4 towards the second wheeled base 2
Pressing plate 10, the first pressing plate 8, cushion 9 and the second pressing plate 10 are sheathed on sleeve column 302.
Elastic parts can provide the elastic force towards rolling member 4, and rolling member 4 is made to fit to wheeled base.Cushion 9
Coefficient of elasticity want reliable and stable, can make the reaction force that the first pressing plate 8 is subject to everywhere consistent in this way, to which safe torsion can be improved
The setting accuracy of power.According to actual demand, the replacements such as the spring that coefficient of elasticity is stablized also may be selected.
It can adjust the distance between first pulley pedestal 1 and the second wheeled base 2 according to desired safe torsion, that is, adjust
The compression degree of whole cushion 9.
The operation principle of the bidentate synchronous belt wheel device 100 of the present invention is as follows：
When practical torsion is less than the safe torsion of setting, pass through the screens of rolling member 4, first pulley pedestal 1, pressure regulating seat 3
It is a rigidly connected entirety with the second wheeled base 2, motion transmission may be implemented.
When practical torsion is more than the safe torsion of setting, rolling member 4 can be detached from from round hole 101a, to make first
Wheeled base 1 is disengaged with pressure regulating seat 3 and 2 phase of the second wheeled base, realizes that movement is detached from, due to the axial line of three through-hole 301a
It is all different at a distance from rotation centerline, thus the sliding of rolling member 4 is lighter, after rotating a circle, you can precisely reset.
Using the mounting structure of above-mentioned bidentate synchronous belt wheel device 100 referring to shown in attached drawing 17, first pulley pedestal 1 it is outer
Side is connected with the cooperation of a side end of lower shaft of sewing machine 200, and upper axis 300 is equipped with upper shaft synchronous pulley 400, bidentate synchronous pulley
Device 100 is additionally provided with driving motor 500, and the output end of driving motor 500 is equipped with motor synchronous pulley 600, motor synchronous pulley
Be connected by the first synchronous belt 700 between 600 and the second wheeled base 2, first pulley pedestal 1 and upper shaft synchronous pulley 400 it
Between by the second synchronous belt 800 be connected, driving motor 500 be set to baseplate of sewing machine side.
Upper axis 300 in sewing machine is connected with components such as shanks, and lower axle 200 is connected with components such as rotating shuttles.
In the present embodiment, the second wheeled base 2 is torque input end, and first pulley pedestal 1 is torque output.Second band
One effect of wheel pedestal 2 is the safe torque magnitude of setting, another functions as synchronous with driving device connection transmission
Belt wheel passes motion to 200 each component of axis 300 and lower axle.
Preferably, the external tooth quantity ﹤ first pulley pedestals of the second wheeled bases of external tooth quantity ﹤ 2 of motor synchronous pulley 600
1 external tooth quantity.In this way, when driving motor 500 rotates, upper shaft synchronous pulley 400 can obtain smaller rotating speed, to
The rotation strength of axis 300 is set to increase, the puncture strength for the shank being connected with upper axis 300 increases, and can sew thicker cloth.
When rotating shuttle is stuck, lower-left axis 200 does not rotate, and the torsion that driving motor 500 passes over is made to increase, when more than setting
When fixed safe torque value, first pulley pedestal 1 and the second wheeled base 2 and pressure regulating seat 3 are separated, lower axle 200 no longer by
The torsion passed over to driving motor 500, to protect rotating shuttle to be not damaged.
Multiple functions are integrated in one by the bidentate synchronous belt wheel device 100 of the present invention, occupy little space, are easily assembled to, and turn round
The setting accuracy of power is high, sensitiveer to the protection of rotating shuttle.When being installed on sewing machine, the need one of lower axle 200 of sewing machine,
And the concentricity effect after assembling is more preferable.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Scholar cans understand the content of the present invention and implement it accordingly, and it is not intended to limit the scope of the present invention.It is all according to the present invention
Equivalent change or modification made by Spirit Essence, should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of bidentate synchronous belt wheel device, it is characterised in that：It is arranged and all has the first pulley pedestal of external tooth including pairing
And it second wheeled base, is set between the first pulley pedestal and second wheeled base and can the relatively described first pulley
The pressure regulating seat of pedestal rotation, the outboard end of the first pulley pedestal are equipped with the fit structure to be connected with external device (ED),
The pressure regulating seat and second wheeled base are fixedly linked, the first pulley pedestal, the pressure regulating seat and described second
Wheeled base has same rotation centerline, and the external tooth quantity of the first pulley pedestal is not less than second wheeled base
External tooth quantity, the bidentate synchronous belt wheel device has closed state and off-state, when the bidentate synchronous belt wheel device is
When the closed state, the first pulley pedestal, the pressure regulating seat and second wheeled base are rigid connection；When described
When bidentate synchronous belt wheel device is the off-state, the first pulley pedestal and the pressure regulating seat and second belt wheel
Pedestal is separated.
2. a kind of bidentate synchronous belt wheel device according to claim 1, it is characterised in that：The first pulley pedestal has
The first end cover board of the vertical rotation centerline, the pressure regulating seat have the second end being oppositely arranged with the first end cover board
Cover board, coordinate on the second end cover board equipped with the through-hole passed through for rolling member, the first end cover board is equipped with and institute
The round hole for being embedded the rolling member that through-hole matches is stated, the bidentate synchronous belt wheel device further includes driving institute
The elastic parts that rolling member is adjacent on the first end cover board is stated, when the bidentate synchronous belt wheel device is the closed state
When, the rolling member is arranged in the through-hole and the round hole；When the bidentate synchronous belt wheel device is the disconnection shape
When state, the rolling member is located on the outside of the round hole.
3. a kind of bidentate synchronous belt wheel device according to claim 2, it is characterised in that：The through-hole and the rolling member
Clearance fit, the diameter of the round hole are less than the diameter of the rolling member, and the quantity of the through-hole is three, and three described logical
Its respective axial line of hole is different from the distance between the rotation centerline, on same cross section, leads to described in each adjacent two
Angle of the line of the center in hole and the second end cover plate central between it is 120 °.
4. a kind of bidentate synchronous belt wheel device according to claim 2, it is characterised in that：The first pulley pedestal also wraps
The connecting pole for being set to the first end cover plate central and extending towards second wheeled base is included, is coordinated on the pressure regulating seat
Equipped with the sleeve column for penetrating for the connecting pole, the bidentate synchronous belt wheel device further include penetrate the sleeve column and with it is described
The stop screw that connecting pole is threadedly coupled, the inner wall clearance fit of the stop screw and the sleeve column.
5. a kind of bidentate synchronous belt wheel device according to claim 2, it is characterised in that：The stop screw is along its length
Direction includes successively nut portion, is connected with the nut portion and in the first shaft part of optical axis, and is connected with first shaft part
And there is externally threaded second shaft part, it is equipped with to reality between the nut portion, first shaft part and second shaft part
Multiple positioning steps of the existing pressure regulating seat axially position, the sleeve column are respectively equipped with and matched first hole in the nut portion
Section, with first shaft part it is matched second perforation and with the matched third hole section of connection column outer wall.
6. a kind of bidentate synchronous belt wheel device according to claim 4, it is characterised in that：Second wheeled base is equipped with
With the perforation penetrated for the sleeve column, the outer wall of the sleeve column is equipped with the positioning to be connected with second wheeled base
Face, the positioning surface be from the outboard end of the sleeve column towards medial end extend and intilted inclined surface, it is described to incline
The angle of inclination on inclined-plane is 1 °~2.5 °, and second wheeled base is equipped with and is radially screwed in for the first trip bolt
The connecting hole of the positioning surface.
7. a kind of bidentate synchronous belt wheel device according to claim 4, it is characterised in that：The first pulley pedestal, institute
The accommodating chamber that the formation coordinated between the second wheeled base and the pressure regulating seat is located at second end cover board side is stated, it is described
Accommodating chamber is set in the accommodating chamber and is covered on the rolling member in annular shape, the elastic parts cooperation.
8. a kind of bidentate synchronous belt wheel device according to claim 7, it is characterised in that：The elastic parts includes from institute
State the first pressing plate, cushion and the second pressing plate that rolling member is set gradually towards second wheeled base, first pressure
Plate, the cushion and second pressing plate are sheathed on the sleeve column.
9. a kind of mounting structure of claim 1 to 8 any one of them bidentate synchronous belt wheel device, it is characterised in that：It is described
The outside of first pulley pedestal is connected with the cooperation of a side end of lower shaft of sewing machine, and the upper axis is equipped with upper shaft synchronous pulley,
The bidentate synchronous belt wheel device is additionally provided with driving motor, and the output end of the driving motor is equipped with motor synchronous pulley, described
Be connected by the first synchronous belt between motor synchronous pulley and second wheeled base, the first pulley pedestal and it is described on
It is connected by the second synchronous belt between axis synchronous pulley, the driving motor is set to the side of the baseplate of sewing machine.
10. the mounting structure of bidentate synchronous belt wheel device according to claim 9, it is characterised in that：Second belt wheel
Pedestal is torque input end, and the first pulley pedestal is torque output, described in the external tooth quantity ﹤ of the motor synchronous pulley
The external tooth quantity of first pulley pedestal described in the external tooth quantity ﹤ of second wheeled base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810367394.2A CN108506463B (en) | 2018-04-23 | 2018-04-23 | Double-tooth synchronous pulley device and mounting structure thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810367394.2A CN108506463B (en) | 2018-04-23 | 2018-04-23 | Double-tooth synchronous pulley device and mounting structure thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN201810367394.2A Active CN108506463B (en) | 2018-04-23 | 2018-04-23 | Double-tooth synchronous pulley device and mounting structure thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107387733A (en) * | 2017-09-13 | 2017-11-24 | 张家港保税区通勤精密机械有限公司 | A kind of crankshaft belt pulley for reversing damping |
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| CN107387733A (en) * | 2017-09-13 | 2017-11-24 | 张家港保税区通勤精密机械有限公司 | A kind of crankshaft belt pulley for reversing damping |
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| CN108506463B (en) | 2024-03-01 |
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