CN208843150U

CN208843150U - Screw rod transmission mechanism

Info

Publication number: CN208843150U
Application number: CN201821522903.6U
Authority: CN
Inventors: 沙宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-18
Filing date: 2018-09-18
Publication date: 2019-05-10
Anticipated expiration: 2028-09-18

Abstract

The utility model discloses a kind of screw rod transmission mechanisms comprising: rack；Axle bed；Bottle feeding screw；Extensible member；Power axle assembly；First locking member；And second locking member；Wherein, the extensible member and power axle assembly being oppositely arranged are used for the limit of bottle feeding screw axially.Screw rod transmission mechanism according to the utility model is convenient for changing, and is conveniently adjusted.

Description

Screw rod transmission mechanism

Technical field

A kind of screw rod transmission mechanism of the utility model.

Background technique

Referring to Figure of description 1, bottle pipeline D is widely used in the types of applications equipment for bottle operation, such as Bottle placer, slag-testing machine, labelling machine, sealing machine etc., these application apparatus are generally located at a bottle side of pipeline D, as shown in fig. 1 Upside.Bottle B is in the arrangement of bottle pipeline D and uneven, and such as bottle placer, by bottle placer placed by bottle placer last time turntable Head is uniformly arranged, it is desirable that and bottle B needs to keep meeting between adjacent bottle B the spacing of bottle placer requirement when being transported on bottle placer, In this way, which the side bottle pipeline D before application apparatus needs to be arranged screw rod transmission mechanism A, using in screw rod transmission mechanism The lead of bottle feeding screw uniformly separates bottle B, then cooperates bottle feeding star wheel C to given application apparatus feeding again.

It is needed and the screw rod arc of bottle feeding screw and the wheel of bottle feeding star wheel C in Fig. 1 positioned at the bottle B of bottle feeding screw right end Slot (being also bottle feeding star wheel arc) matches, and therefore, when same application equipment operates different bottle-type, needs replacing bottle inlet Screw rod needs adjustment bottle feeding screw and bottle feeding star wheel C to be in good mated condition after replacement.Herein relate to asking for two aspects Topic is the adjustment problem of the mated condition one is the property problem easy to change of bottle feeding screw, another, below first just cooperate State adjustment problem is illustrated.

It is a kind of known screw rod transmission mechanism shown in Fig. 2 and 3, this kind of screw rod transmission mechanism is referred to as stent-type.Fig. 2 In, the left end of bottle feeding screw 3 is mounted on movable support 2 by bearing, and right end is mounted on fixation by splined shaft fitted bearing On bracket component 5, splined shaft is connect by cardan universal joint component 6 with driving mechanism 7.When replacing bottle feeding screw 3, if bottle feeding screw 3 On arc be misaligned with race, need to separate bottle feeding screw 3 with spline 4, rotate by a certain angle to bottle feeding screw 3, be inserted into Spline, then observe whether arc is aligned with race, if can be fastened after alignment, if being also misaligned needs to readjust.Whole process It is very cumbersome, it is very high to the competency profiling of adjustment personnel.

In addition, replacement screw rod also needs the clamping screw 1 locked for movable support component 2 to unclamp for stent-type, and It separates movable support component 2 with fixed bracket assembly 5, is assembled again after installing bottle feeding screw 3.The part so removed is deposited It puts, take, assembling and disassembling equal inconvenience, workload is bigger than normal.

Figure 4 and 5 show known another spiral conveying mechanism, this kind of screw rod transmission mechanism is commonly known as swung Formula, swing type are mounted in movable support group by bearing by 2 component of movable support component, one swinging frame, 3 one end of bottle feeding screw One end of part 2, the other end are mounted on the other end of movable support component 2 by splined shaft fitted bearing, and splined shaft passes through sprocket wheel Component is driven.Swing type replaces bottle feeding screw 3 when adjusting the position of bottle feeding screw 3 and bottle feeding star wheel C, needs first by bottle inlet spiral shell Bar 3 is separated with spline 4, and then bottle feeding screw 3 is rotated by a certain angle, and whether observation arc is aligned with race after being inserted into spline 4, If alignment can fasten, if not needing also to readjust to it, process is very cumbersome.

In addition, swing type, when replacing bottle feeding screw 3, the clamping screw 1 of movable support component 2 unclamps, can exist and branch The identical problem of posture.

Summary of the invention

The purpose of the utility model is to provide screw rod transmission mechanisms a kind of easy to adjust, and adjusting relatively easy.

According to the embodiments of the present invention, a kind of screw rod transmission mechanism is provided comprising:

Rack；

Axle bed is mounted on the rack, and equipped with a pair；

One end of bottle feeding screw, the bottle feeding screw is power end, and the other end is adjustment end；

Extensible member, the extensible member have the matrix for being directed at an axle bed bore and constitute the head of revolute pair between matrix Portion, wherein revolute pair and bottle feeding screw coaxial line, and with adjustment end circumferentially connecting；

Power axle assembly is rotatably mounted on another axle bed, and is circumferentially connect with power end；The power axle assembly is in axis To having seperated two parts, is formed between two parts and be rotatablely connected or can circumferentially adjust；

First locking member, the locking after being adjusted in place in bore for extensible member；And

Second locking member, for the locking after being adjusted in place between power axle assembly two parts；

Wherein, the extensible member and power axle assembly being oppositely arranged are used for the limit of bottle feeding screw axially.

Above-mentioned screw rod transmission mechanism is optionally coupled or between cog between power end and power axle assembly using Flat dey joint, pin Engagement connection.

Optionally, when being coupled using pin, the structure of connection is configured that

A positioning disk is provided, which has a centralized positioning head, and is equipped with connecting pin on the side of centralized positioning head；

Correspondingly, adjustment end is provided with the center positioning hole with the cooperation of centralized positioning head, and is located at beside center positioning hole Connecting pin bores.

Optionally, connection, radial top are engaged using Flat dey joint, pin connection, between cog between extensible member and adjustment end Silk is fastenedly connected or flanged joint.

Optionally, described matrix is the rod piece of one with bore cooperation；

It is provided with top wire hole in bore side, a jackscrew is provided, passes through top wire hole locking matrix.

Optionally, jackscrew head end is furnished with regulation handle.

Optionally, it is assembled between matrix and head by bearing.

Optionally, two part constructions of power axle assembly are as follows:

First construction: there is two parts one side to be provided with the matching hole of top wire hole, another matches with fitted shaft, axis hole It is fastened after conjunction using jackscrew；

Second construction: two parts one has fixed disk, another to have adjustment plate, and wherein adjustment plate is used to connect with fixed disk The bolt hole or screw hole connect has circumferential adjustment space for arcuate socket.

Optionally, two axle beds are located on a rocker, which is mounted on the rack by shaft, and are rocker setting lock Tight device, on the rack by rocker locking.

Optionally, axle bed is located at the end of swing arm corresponding to rocker, and swing arm is fixed plate, and two swing arms share one and turn Axis.

Optionally, the rack section that connection is adapted to fixed plate is fixing seat, which is plate, is provided in fixing seat Axis hole, and lock hole is equipped in the outside of axis hole；

Correspondingly, the locked hole with lock hole contraposition is also provided in fixed plate；

Bolt is provided or screw is used to be connected and fixed plate and fixing seat by lock hole and locked hole.

It optionally, further include driving mechanism, which includes:

First transmission shaft constitutes the line shaft of power axle assembly or is connect with power between centers by shaft coupling；

Second driving shaft, it is parallel with the first transmission shaft, pass through synchronous belt mechanism, gear mechanism or chain-drive mechanism and One transmission axis connection；

Third transmission shaft, it is vertical with second driving shaft, it is connect by bevel gear with second driving shaft.

Optionally, the bevel gear on third transmission shaft is located at the centre of second driving shaft axial direction.

It should be noted that since there are the correlations in mechanism, i.e. bottle moving between bottle feeding star wheel and screw rod transmission mechanism Star-wheel is dynamic, then screw rod transmission mechanism can also move, this will lead in bottle feeding screw after screw rod transmission mechanism, to be adapted to bottle moving The circumferential adjustment of star-wheel is not allowed to, this is the main reason for current replacement screw rod is difficult.

According to the embodiments of the present invention, in replacement, it is only necessary to release the first lock from one end where extensible member The locking of tight component, moves axially extensible member, disengages the both ends of bottle feeding screw accordingly with extensible member and power axle assembly. Then new bottle feeding screw is selected, the alignment with bottle feeding star wheel is empirically determined, between extensible member and power axle assembly New bottle feeding star wheel is installed, the first secure component is locked.If bottle feeding screw aligns undesirable, the second lock of release with bottle feeding star wheel Tight component disengages bottle feeding screw and power source, in other words disconnects the driven association of bottle feeding screw and bottle feeding star wheel, then exist Line adjusts bottle feeding screw and bottle feeding star wheel aligns, and after contraposition is in accordance with given requirement, fastens the second locking member.Due to need not frequency Numerous to remove bottle feeding screw to be aligned, the efficiency of replacement bottle moving screw rod greatly improves, and can use power axle assembly into Row fine tuning, it is high more than the aligning accuracy directly assembled by rule of thumb.

Detailed description of the invention

Fig. 1 is organigram of the screw rod transmission mechanism in bottle separating device.

Fig. 2 is a kind of known screw rod transmission mechanism overlooking structure diagram (stent-type).

Fig. 3 is the left view structural representation corresponding to Fig. 2.

Fig. 4 is known another screw rod transmission mechanism overlooking structure diagram (swing type).

Fig. 5 is the left view structural representation corresponding to Fig. 4.

Fig. 6 is screw rod transmission mechanism schematic view of the front view in an embodiment of the present invention.

Fig. 7 is the left view structural representation corresponding to Fig. 6.

In figure: A. screw rod transmission mechanism, B. bottles, C. bottle feeding star wheel, D. bottles of pipelines.

1. clamping screw, 2. movable support components, 3. bottle feeding screws, 4. splines, 5. fixed bracket assemblies, 6. universal joint groups Part, 7. driving mechanisms, 8. bracket components, 9. gears, 10. bar components, 11. transmission components, 12. chain wheel assemblies.

13. fixing seat, 14. fixed plates, 15. regulation handles, 16. fixing seats, 17. telescopics, 18. drive plates, 19. swing Strut, 20. fixed disks, 21. adjustment disks, 22. adjust elongated slot, and 23. adjust bolt, 24. transmission shafts, 25. fixing seats, 26. cylinders Gear, 27. bevel gears, 28. transmission shafts, 29. fixing seats, 30. transmission shafts, 31. input gears.

Specific embodiment

Referring to attached drawing 1 is illustrated, for the explanation for being conducive to the utility model, first from the perspective of from the dismounting process of replacement bottle feeding screw 3 The structure or construction that screw rod transmission mechanism A is relied on from replacement 3 angle of bottle feeding screw in bright the utility model embodiment.It can manage Solution, the dismounting process is the description based on screw rod transmission mechanism A preferred embodiment, rather than covers whole implementation Example.

Since bottle B is varied, diameter is not universal also identical, and for different bottle-type, generally requiring replacement has not With the bottle feeding screw 3 of R parameter.It is understood that the tooth form slot on the helicla flute of bottle feeding screw 3 not instead of common screw, Arc groove, the radius of arc groove are denoted as R parameter above-mentioned.

In view of this, the embodiment for certain screw rod transmission mechanism A can be used referring to Figure of description 6 and 7 The dismounting process of bottle feeding screw 3 has follow steps:

1) unclamp clamping screw 1, and clamping screw 1 is adjusted to make its disengage with fixing seat 13 (left end in figure, it is right in figure Hold similar), fixed plate 14 obtains rotational freedom.Regulation handle 15 is unclamped, the constraint to telescopic 17 is released, is moved to the left and stretches Contracting set 17, removes bottle feeding screw 3.

2) bottle feeding screw 3 that corresponding R parameter is selected according to number, is first inserted into 21 institute of adjustment disk for the right end of bottle feeding screw 3 Trundle in side, then the left end of bottle feeding screw 3 and driven disc 18 are worked good and lock regulation handle 15, wherein driven disc 18 carries It sets on telescopic 17.

3) race of bottle feeding star wheel C is turned into place corresponding with 3 right end of bottle feeding screw, then the bottle B that will be replaced It is placed in the corresponding race of bottle feeding star wheel C, side oscillation where bottle feeding screw 3 to bottle B is extremely contacted with bottle.If not corresponding to, pine It opens and adjusts bolt 23, be using the axis of adjustment disk 21 as the arc groove of axis arc in other words using adjusting elongated slot 22(to adjust elongated slot 22 Shape hole) it is finely adjusted, until being locked to just, then by bolt 23 is adjusted, and then clamping screw 1 fastens.

4) first point driving switch, is tested at a slow speed, and whether transition of the observation bottle B in each junction be steady, if unstable, Re-start adjustment.

5) it is shut down after adjusting spare.

Detailed explanation is done to screw rod transmission mechanism A below for dismounting process above:

Firstly, being defined as the set of component in machinery field about mechanism, at least there is a movable part, it is right There is no limit therefore, in following description, screw rod transmission mechanism A may include therein the maximum number of component in mechanism Part-structure can also all include.

As mechanism, it includes rack, rack refers to component opposing stationary in mechanism, and opposing stationary is not absolutely quiet Only, but component is relatively stationary in specified minimal set.

In Fig. 6, fixing seat 13 is the rack of screw rod transmission mechanism A, the merely exemplary a kind of structure for providing rack in figure, It is understood that rack in addition to meet it is opposing stationary other than, besides need to meet and be in determining connection with other components and close System, so as to realize corresponding mechanical movement.In addition to basic function is realized, to the structure or construction of rack, there is no stringent Limitation.

In Fig. 6, bottle feeding screw 3 is final output link, and basic exercise form is the rotation around own axes, is needed It provides rotation for it to support, rotation support is one of most basic support of machinery field, in the expression of summary, certainly according to support Whether body is movable and general who has surrendered rotates support and is defined as fixed-hinged support or movable hinged-support.It indicates to provide bottle inlet spiral shell with axle bed herein The rotatably supported component of bar 3.

Axle bed is mounted on the rack, fixing seat 13 as shown in FIG. 6, it is to be understood that bottle feeding screw 3 is both ends rotation The component of support is only embodied in both ends rotation support to the most basic requirement of axle bed, and cannot be with bottle pipeline D and bottle moving star It takes turns C and generates movement interference.

Correspondingly, axle bed needs to configure a pair, and one is located at one end of bottle feeding screw 3, another positioned at the another of bottle feeding screw 3 One end, the left and right ends of bottle feeding screw 3 as shown in Figure 6.

Correspondingly, about bottle feeding screw 3, one end is for introducing power, and as power end, the other end is in the utility model Embodiment in mainly serve for ensuring bottle feeding screw 3 and be easy to dismount, be defined as adjustment end.It is understood that about term name Title is mainly used to distinguish different technical characteristics, such as adjustment end above-mentioned, specific structure by it specific descriptions and with Construction between other components is limited.

Extensible member is set in adjustment end, here, so-called stretch refers to axially there is given adjustment amount in bottle feeding screw 3 Component, it is to be understood that minimum adjustment amount needs to meet bottle feeding screw 3 can be removed just, it is however generally that, it is required Adjustment amount should be greater than minimum adjustment amount, with guarantee dismounting when have enough operating spaces.

Specifically, the adjustment amount of extensible member is directly related with the assembly method of power end and adjustment end, due to bottle inlet spiral shell Bar 3 can be therefore, main to illustrate in the embodiments of the present invention based on the restriction for realizing axial position to folder at both ends The circumferential connection at 3 both ends of bottle feeding screw.Correspondingly, circumferentially positioned needs satisfaction such as extensible member is insinuated into bottle feeding screw 3 Interior depth has circumferential connection structure, such as Profile Connection.

Further, the adjustment of adjustment end depends on axle bed bore corresponding to adjustment end and is formed by tune based on shaft hole matching Whole, specifically extensible member has the matrix for being directed at adjustment end axle bed bore, and once matrix is locked, and freedom degree is by about Beam, therefore the head that revolute pair is constituted between one and matrix is provided, head couples with the formation of the adjustment end of bottle feeding screw 3.

Correspondingly, above-mentioned revolute pair and 3 coaxial line of bottle feeding screw, and with adjustment end circumferentially connecting, and have bottle feeding screw 3 The standby rotational freedom around own axes.

The first locking member is provided for extensible member, constraint or constraint relief for extensible member freedom degree, when flexible Component constrains extensible member after being adjusted in place in the bore, axial freedom is restrained.If bottle feeding screw 3 need to be removed, Then constraint relief disengages extensible member and bottle feeding screw 3.

Power axle assembly is provided in the power end of bottle feeding screw 3, for driving the rotation of bottle feeding screw 3, correspondingly, power Axle assembly needs to be rotatably mounted on another axle bed, and the purpose coupled between bottle feeding screw 3 shows torque first In output, i.e., by circumferential connection to transmit torque.

It is after basic object based on the utility model is it is found that bottle feeding screw 3 assembles on screw rod transmission mechanism A, i.e., thick fixed Behind position, needs to be finely adjusted again, that is, be accurately positioned.In view of this, being closed by the transmission for disconnecting bottle feeding screw 3 and bottle feeding star wheel C Connection property, so as to be individually finely adjusted to the circumferential direction of bottle feeding screw 3 under conditions of bottle feeding screw 3 is in axial and is positioned. Wherein, axial direction above-mentioned is positioned, for guaranteeing that bottle feeding screw 3 and bottle feeding star wheel C keep initial axial in bottle feeding screw 3 Positioning states, circumferential adjustment do not influence axially position precision.

Specifically, power axle assembly forms rotation connection between two parts axially with fission, two parts or being capable of week To adjustment, wherein be rotatablely connected, such as axle sleeve fit structure, structure, such as flanged joint are adjusted for circumferential, on a flange Hole is arcuate socket, and the flange for being provided with arcuate socket is located at side where power axle assembly.

Fine tuning also provides an adjustment space, in adjustment space, does not interfere between two parts joined together circumferentially, Constraint will not be generated.In the cooperation of such as axle sleeve, two parts matched unconfined can be relatively rotated.

In view of this, the second locking member is provided, for the locking after being adjusted in place between power axle assembly two parts, constraint Relative rotation between two parts.Obviously, when constraint relief, has the freedom degree of relative rotation between two parts.Obviously, this kind Fine-tuning mode more than remove re-registrate after bottle feeding screw 3 it is simply more.

In terms of the circumferential cooperation for mainly describing 3 both ends of bottle feeding screw in content above-mentioned, for its axial direction, then it is based on pair The axial direction at its both ends, which compresses, can be realized positioning and limit.

It is understood that even used tailstock centre also may be implemented for example on lathe if axial force is enough The transmitting of torque.As previously described, because there is individually circumferential restraining structure, for this purpose, for simple axial limiting and positioning, Can be used for example disk miller realization, specifically using disk miller end face and bottle feeding screw 3 end face cooperation realize positioning and Limit.

Being connected in content above-mentioned for line shaft and power end in power axle assembly points out to need to realize circumferential connection, In machinery field, common connection type is flat key connection, such as is splined on line shaft, and flat key is arranged, in Fig. 6 into The right end of bottle screw rod 3 opens axis hole, splines to contraposition in axis hole, connection can be realized using inserting.Flat key connection structure is simple, It is very quick when being assembled between two parts connected.

It is attached in some embodiments using pin, compared to being keyed, its cost is lower, and wants to itself precision It asks and is relatively low.Since 3 operation torque of bottle feeding screw is very small, push bottle B in bottle feeding screw 3 only with spiral lift It is axial promote, meet 3 operation torque delivery request of bottle feeding screw using pin connection.

In addition, the material of bottle feeding screw 3 is usually nylon, itself has certain intensity, pin hole hole wall, which meets load, to be wanted It asks.

In some embodiments, circumferentially connecting can be realized by the way of between cog engagement, i.e., be equipped with tooth in power end, Engagement is realized in the line shaft position tooth opposite with power end between cog, the insertion using two component raker tooths between cog.

Pin connection is configured as in a preferred embodiment:

A positioning disk is provided, for the positioning disk other than the matrix as circumferential positioning structure, itself is alternatively arranged as axial direction On the one hand the structure of positioning, fixed disk 20 as shown in Figure 6 carry out axially position using right end of the end face to bottle feeding screw 3, And it is equipped with circumferential positioning structure in the fixed disk 20 end face opposite with bottle feeding screw 3, which includes a formation Centralized positioning head on positioning disk to be used for centering, and then is equipped with connecting pin on the side of centralized positioning head, to provide torsion Square.

For the circumferential connection between extensible member and adjustment end in addition to engaging connection using Flat dey joint, pin connection, between cog Outside, there are also more selections, such as radial jackscrew is fastenedly connected or flanged joint.

To realize axially position, driven disc 18 as shown in Figure 6 can also be set on extensible member.

Further it will be understood that simple use such as fixed disk 20, which can meet, to be positioned to for axially position It asks, then realizes limit, such as the pressure to telescopic 17 to the right using axial pressure.

In some embodiments, the independent component for being used to apply 17 axial force of telescopic can also be provided, such as in Fig. 6 Top fastening screw is arranged in the left end of axle bed in the fixed plate 14 on the left side, manually adjust make driven disc 18 on telescopic 17 with into After bottle screw rod 3 engages, then the pretightning force of Top fastening screw is adjusted, it is made to act on circumferentially opposed static part in telescopic 17, Top fastening screw is set to have determining pretightning force (torque spanner control can be used).Then it is flexible to reuse the locking of regulation handle 15 Set 17.

The bore of axle bed in Fig. 6 positioned at left end is stepped hole, and path part can be equipped with the Top fastening screw, can be with It is contained within the rod piece of extensible member, the right end of rod piece is telescopic 17 shown in Fig. 6, and telescopic 17 can provide bearing Seat, the rolling assembling for driven disc 18 in figure.

As previously mentioned, torque needed for bottle feeding screw 3 is smaller, the power that constraint such as telescopic 17 rotates is not needed too Greatly, therefore in a preferred embodiment its circumferentially locking and axial lock directly is realized using jackscrew.

Correspondingly, radial screw bore is opened in the bore cooperated with telescopic 17, fastens telescopic 17 using jackscrew.

In addition, jackscrew head end is furnished with regulation handle 15 in structure shown in Fig. 6, to facilitate manual operation.

About power axle assembly, an assembly structure is constituted, includes at least two separable parts, it is clear that this Separation is established on the basis of releasable connection.

In some embodiments using the first construction: there is two parts one side to be provided with top wire hole in the first construction Matching hole is analogous to the lock solid structure of telescopic 17 above-mentioned.Correspondingly, another in two parts is with fitted shaft, axis hole It is fastened after cooperation using jackscrew.This 3 controlled variable of structure bottle feeding screw is unrestricted.

In some embodiments, it is denoted as the second construction, second construction is referring to Figure of description 6, in figure, two parts one Another to have adjustment plate 21 with fixed disk 20, wherein adjustment plate 21 is used for the bolt hole or screw connecting with fixed disk 20 Hole has circumferential adjustment space for arcuate socket, and arcuate socket is the adjusting elongated slot 22 indicated in Fig. 6.

In the second configuration, the limited limitation of central angle being corresponded to by arcuate socket, adjustment amount is relatively small, but such as preceding institute It states, belongs to fine tuning using the adjustment that arcuate socket is carried out, be the adjustment after experience contraposition, the error after experience contraposition will not be special It is not big, belong to the application that micro adjustment can be used.

In Fig. 6 and screw rod transmission mechanism A shown in Fig. 7, belong to swing type on the whole, correspondingly, two axle beds are located at one On rocker, the matched rocker axis of rocker is swing strut 19 or each axis positioned at swing 19 both ends of strut shown in Fig. 6 Head.

Correspondingly, rocker is mounted on the rack for example, by rocker axis or swing strut 19 as shown in FIG. 6, in figure Shown in fixing seat 13.

In this field it is understood that rocker needs to lock in place afterwards in swing, to meet bottle feeding screw 3 and bottle moving star The reliability of position between wheel C.

Correspondingly, locking device is set for rocker, on the rack by rocker locking.

In structure shown in Fig. 6, fixed plate 14 constitutes rocker, is adapted to the rack section of connection with fixed plate 14 to fix Seat 13, the fixing seat 13 are plate, axis hole are provided in fixing seat 13, and be equipped with lock hole in the outside of axis hole.

Correspondingly, the locked hole with lock hole contraposition is also provided in fixed plate 14.

Bolt is provided or screw is used to be connected and fixed plate 14 and fixing seat 13 by lock hole and locked hole, such as Fig. 6 Shown in clamping screw 1.

Fixed plate 14 and the lock solid structure of fixing seat 13 shown in Fig. 6 are bigger than coupling mechanism force provided by jackscrew structure, and And it will not damage by locking component.

In structure shown in Fig. 6, axle bed is located at the end of swing arm corresponding to rocker, and swing arm is aforementioned fixed plate 14, and Two swing arms share a shaft, such as swing strut 19, the structural reliability of screw rod conveyor structure entirety can be made relatively preferable.

The additional part screw rod transmission mechanism A is illustrated below, is driving mechanism first, the driving mechanism be into The driving of bottle screw rod 3, based on description above-mentioned it is found that its power end that should be fitted in bottle feeding screw 3.

The driving mechanism includes:

First transmission shaft, transmission shaft 24 as shown in Figure 6, the transmission shaft constitute the line shaft or work of power axle assembly It is independent axis and is attached with power between centers by shaft coupling.

It further include second driving shaft and third transmission shaft in Fig. 6, wherein second driving shaft is parallel with the first transmission shaft, such as schemes Transmission shaft 28 shown in 6 pass through synchronous belt mechanism, gear mechanism or chain-drive mechanism shown in right end in Fig. 6 and the One transmission axis connection.

About third transmission shaft, transmission shaft 30 as shown in Figure 6, the third transmission shaft is vertical with second driving shaft, leads to Bevel gear 27 is crossed to connect with second driving shaft.

The transmission that bevel gear 27 is realized belongs to positive drive, is able to bear biggish torque, when there is card bottle, does not allow It is vulnerable.

In addition, bevel gear 27 on third transmission shaft is located at the centre of second driving shaft axial direction in structure shown in Fig. 6. In this structure, second driving shaft, transmission shaft 28 as shown in Figure 6 is capable of forming both ends support, and support Reliability comparotive is good.

Claims

1. a kind of screw rod transmission mechanism characterized by comprising

Rack；

Axle bed is mounted on the rack, and equipped with a pair；

Extensible member, the extensible member have the matrix for being directed at an axle bed bore and constitute the head of revolute pair between matrix, Wherein revolute pair and bottle feeding screw coaxial line, and with adjustment end circumferentially connecting；

Power axle assembly is rotatably mounted on another axle bed, and is circumferentially connect with power end；The power axle assembly is in axial tool There are seperated two parts, form rotation connection between two parts or can circumferentially adjust；

2. screw rod transmission mechanism according to claim 1, which is characterized in that use flat key between power end and power axle assembly Connection, pin connection or between cog engagement connection.

3. screw rod transmission mechanism according to claim 2, which is characterized in that when using pin connection, the structure configuration of connection Are as follows:

Correspondingly, adjustment end is provided with the center positioning hole with the cooperation of centralized positioning head, and the company beside center positioning hole Outbound hole.

4. any screw rod transmission mechanism according to claim 1 ~ 3, which is characterized in that adopting between extensible member and adjustment end With Flat dey joint, pin connection, between cog engagement connection, radial jackscrew is fastenedly connected or flanged joint.

5. screw rod transmission mechanism according to claim 4, which is characterized in that described matrix is the bar of one with bore cooperation Part；

6. screw rod transmission mechanism according to claim 5, which is characterized in that jackscrew head end is furnished with regulation handle.

7. any screw rod transmission mechanism according to claim 1 ~ 3, which is characterized in that filled between matrix and head by bearing Match.

8. any screw rod transmission mechanism according to claim 1 ~ 3, which is characterized in that two part structures of power axle assembly It makes as follows:

First construction: there is two parts one side to be provided with the matching hole of top wire hole, another is with fitted shaft, after shaft hole matching It is fastened using jackscrew；

Second construction: two parts one has fixed disk, another to have adjustment plate, and wherein adjustment plate is used to connect with fixed disk Bolt hole or screw hole have circumferential adjustment space for arcuate socket.

9. any screw rod transmission mechanism according to claim 1 ~ 3, which is characterized in that two axle beds are located on a rocker, should Rocker is mounted on the rack by shaft, and locking device is arranged for the rocker, on the rack by rocker locking.

10. screw rod transmission mechanism according to claim 9, which is characterized in that axle bed is located at the end of swing arm corresponding to rocker End, swing arm is fixed plate, and two swing arms share a shaft.

11. screw rod transmission mechanism according to claim 10, which is characterized in that be adapted to the rack section of connection with fixed plate For fixing seat, which is plate, axis hole is provided in fixing seat, and be equipped with lock hole in the outside of axis hole；

12. any screw rod transmission mechanism according to claim 1 ~ 3, which is characterized in that it further include driving mechanism, the driving Mechanism includes:

Second driving shaft, it is parallel with the first transmission shaft, it is passed by synchronous belt mechanism, gear mechanism or chain-drive mechanism and first Moving axis connection；

13. screw rod transmission mechanism according to claim 12, which is characterized in that bevel gear on third transmission shaft is located at the Two transmission shafts to centre.