CN109881258B - Grating grid, grating gap adjusting mechanism and seed cotton cleaning machine - Google Patents

Abstract

The invention discloses a grating, a grating gap adjusting mechanism and a seed cotton cleaning machine, wherein grating bars are not all fixed grating bars, but part of division bars form adjustable grating bars, part of division bars are fixed division bars, and the fixed grating bars and the adjustable grating bars are sequentially arranged at intervals. The adjustable grating is supported on the support plates at the two sides based on the first shaft neck, the adjustable grating is provided with a rotation degree of freedom and is adapted to be a cam column grating, and therefore the adjustable grating can be rotated, the gap between the adjustable grating and the adjacent fixed grating can be changed, and the adjustment of grating gaps of the grating can be realized, and the adjustable grating is suitable for the technical development direction of a pattern matching vehicle.

Description

Grating grid, grating gap adjusting mechanism and seed cotton cleaning machine

Technical Field

The invention relates to a grating for a seed cotton cleaner, and also relates to a grating gap adjusting mechanism which is adapted to the grating and a seed cotton cleaner provided with the grating and the spacer gap adjusting mechanism.

Background

The common seed cotton cleaning machine mainly comprises two types, namely a horizontal seed cotton cleaning machine and an inclined seed cotton cleaning machine, wherein the distinguishing principle is that the flow direction of seed cotton is the inclined seed cotton cleaning machine if the seed cotton cleaning machine is inclined, and the horizontal seed cotton cleaning machine if the seed cotton cleaning machine is horizontal.

Chinese patent document CN204849154U shows an inclined recovery type seed cotton cleaner, and the disclosure of the inclined recovery type seed cotton cleaner can clearly reflect the basic structure of the seed cotton cleaner. In general, seed cotton cleaning machines are provided with a plurality of spike rollers, and a grating is arranged below the spike rollers, and the interval between the spike rollers and the grating is an important parameter of the seed cotton cleaning machine, such as the impurity removal rate, which is inversely related to the interval, and the damage rate of cotton fibers is inversely related to the interval, except that the damage rate and the impurity removal rate are a pair of mutually exclusive quality parameters.

The traditional seed cotton cleaning machine comprising the inclined recovery seed cotton cleaning machine disclosed in the Chinese patent document CN204849154U is characterized in that the interval is fixedly arranged. Because of the different quality of seed cotton, such as the basic characteristics of impurity rate, length of cotton fiber, breaking ratio strength of seed cotton fiber, etc., and parameters generated by the environment of moisture regain, etc., these basic shapes and parameters have different adaptability to the interval, and in principle, the 'pattern matching' is needed, i.e. what cotton needs what seed cotton cleaner working parameters. Obviously, the fixed interval can not meet the requirement of effectively cleaning various seed cottons under the conditions of ensuring that the cotton fibers are less damaged and the ropes and wires are less.

The basic structure of the grid is not explicitly shown in CN204849154U, and the grid may be considered as an assembly formed by assembling a plurality of parallel grids through end plates, and is similar to the grid structure as a whole, and is called as grid. The spacing between adjacent bars is approximately the same, and impurities generated by cleaning fall through the gaps between the bars. The non-standard names of the grid bars are also grid bars, grid bars and the like.

It should be noted that the grating gate not only separates seed cotton from separated impurities, but also has larger relative motion with the rotating spike roller, and the seed cotton wound by the spike roller will rub and hit the grating gate during the advancing process, thereby separating impurities from seed cotton. The intensity of friction and striking is related to the shape and the spacing of the grid bars on the grid bars, so that different spacing is adapted to seed cotton with different quality, and the technical development direction of vehicle matching due to flowers is met. However, a welding structure is generally adopted between the grid bars and the end plates on the grid bars of the current seed cotton cleaning machine, namely the grid bars are relatively fixed, and the mutual distance adjustment cannot be performed, so that the pattern matching cannot be realized.

The Chinese patent document CN204849132U discloses a grid screen used for a seed cotton cleaning machine, which provides a conventional structure of a grid, and is provided with two end plates and a plurality of flat steels (namely grid bars), wherein the two end plates are arranged in parallel and used for determining the width of grid, the flat steels are sequentially arranged and fixedly connected on the upper edges of the end plates, a plurality of rib plates are further arranged between the two end plates for improving the overall rigidity, and the rib plates and the flat steels are interwoven into a net shape. The flat steel is used for replacing round steel, so that the cleaning effect is improved, however, the distance between the flat steel cannot be adjusted, in other words, the cleaning effect is relatively fixed, and the vehicle can not be matched due to flowers.

In addition, it should be noted that the cleaning effect is positively related to the damage of cotton fibers to some extent, and relatively speaking, not all seed cotton needs the same cleaning effect, the impurity content of the machine-harvested cotton and the artificial-harvested cotton is very different, and the requirement of the artificial-harvested cotton on the cleaning effect is very low. Therefore, to some extent, the adoption of a higher cleaning effect on seed cotton with better quality can generate unnecessary cotton fiber damage, so that the structure of maintaining fixed higher cleaning efficiency is not necessarily positive to the actual operation effect.

Chinese patent document CN103938300a discloses a seed cotton cleaning machine, in which a grating is disposed, a plurality of gratings (i.e. grating bars) between two side plates are also adopted, and a pulling roller is further disposed under the grating bars, and the design intention is that impurities are separated from seed cotton under the action of centrifugal force and gravity, and long branches are inserted into the lowered grating bars, and are pulled downward by the pulling roller which is relatively rotated by the grating bars, so as to be separated from the seed cotton. The structure is seemingly capable of improving the cleaning capability under the condition of not increasing the damage of cotton fibers, however, once the long branch rod is embedded into the grid gap, the action force of the grid rod on the long branch rod is larger than the traction force of the cotton fibers on the long branch rod due to the relative movement between the grid rod and the spike roller, and the long branch rod can still be separated. In addition, if the long branch body is smaller at the upper part and larger at the lower part, the removal capacity of the drawing roller may be exceeded, and part of the long branch may be blocked temporarily, so that the part exposed above the grid is crushed under the impact of the spike roller, and the long branch is difficult to separate.

Disclosure of Invention

The invention aims to provide a grating according with the development direction of the pattern matching technology, and also provides a grating gap adjusting mechanism suitable for on-line grating gap adjustment.

According to an embodiment of the present invention, there is provided a grid bar including:

The upper edges of the side support plates are provided with arc-shaped parts, the arc-shaped parts are provided with a plurality of first support holes and a plurality of first support holes, and the first support holes are sequentially arranged at intervals;

An adjustable bar having first journals at both ends thereof to be fitted into the first bearing holes through the first journals to have a degree of freedom of rotation; the adjustable grating is a cam column grating; and

The two end heads of the fixed grid bar are fixedly assembled in the first supporting holes at the end;

Wherein each adjustable strap extends from at least one journal to form an overhang portion of the first support hole extending outward from the end where the overhang portion is located, the overhang portion having a stub shaft for use as the actuated end.

The grid bar grid is characterized in that at least one middle supporting plate is arranged between the two side supporting plates, and a second supporting hole are correspondingly formed in the middle supporting plate;

Correspondingly, the second supporting hole is used for rotatably supporting the adjustable lattice bars, and the second supporting hole is used for fixedly supporting the fixed lattice bars;

Wherein the portion of the adjustable strap supported by the second support hole forms a second journal.

Optionally, the body of the adjustable grating is an drift diameter piece;

the first journal and the second journal are configured to: a sleeve having a friction interface is provided and secured in place with the adjustable strap.

Optionally, a set screw hole is formed in the side surface of the shaft sleeve;

Accordingly, the mounting structure of the sleeve on the adjustable bars is by means of a set screw.

Optionally, the first supporting holes and the first supporting holes distributed on the arc-shaped portion form an arc-shaped array, and the holes at two ends of the array are the first supporting holes.

Optionally, the holes inside the first support holes at both ends of the array are also first support holes.

Optionally, the front end and the rear end of the two side supporting plates are fixedly connected with fixing plates;

The upper end of the fixing plate is folded inwards to the arc-shaped part to form a wrapping plate, and the wrapping plate is fixedly connected with the wrapped part wrapping the upper edge.

Optionally, the fixing plate and the two side support plates, and the fixing connection between the wrapping plate and the wrapped part are welded.

Optionally, the cross section of the adjustable grating body is elliptical or the middle part is rectangular and the two ends are semicircular.

According to an embodiment of the present invention, there is also provided a grid gap adjustment mechanism for adjusting a grid gap on the grid, including:

The crank arm is arranged on the shaft head;

a synchronizing member coupling all the crank arms to synchronously drive the corresponding adjustable bars;

a drive assembly, an end member of which is connected to the synchronizing member.

The above-mentioned lattice bar clearance adjustment mechanism, optionally, the synchronization member includes:

An arc body, wherein the arc surface of the arc body is concentric with the arc of the arc part; the arc body is provided with hinge holes which are in one-to-one correspondence with the crank arms, and the hinge holes form a secondary arc array on the arc body;

the force arm part is an arm part which is formed by extending downwards from the middle part of the arc body;

the hinge holes at two ends of the secondary arc array are round holes, and the rest hinge holes contain motion interference avoiding gaps.

Optionally, the driving assembly is an electric push rod, the tail part of the electric push rod is hinged to the frame of the seed cotton cleaning machine, and the push rod provided by the electric push rod forms the tail end component and is hinged to the arm part.

Optionally, a third shaft diameter is arranged between the shaft head and the first shaft diameter;

Accordingly, the third shaft is supported in a pre-opened seat hole on the wallboard of the seed cotton cleaning machine, and the shaft head is exposed outside the wallboard of the seed cotton cleaning machine.

According to the embodiment of the invention, a seed cotton cleaning machine with the parting strip gap adjusting mechanism is also provided.

Above-mentioned unginned cotton descaling machine, optionally, including being used for the interval adjustment mechanism of the interval adjustment between spike roller group and the grid group, the coplanarity of axis of spike roller among the spike roller group of remedying confirms the plane and is the basal plane, and grid group is located the first side of basal plane, interval adjustment mechanism includes:

a seat part for supporting the spike roller shafts of the spike roller groups, and one seat part is respectively arranged at two axial ends of the spike roller groups; and

The lifting mechanism is arranged on the seed cotton cleaner shell or the shell inner frame at the second side of the base plane, and the tail end driven piece of the lifting mechanism is connected with the seat part;

Wherein the second side is opposite to the first side;

the seed cotton cleaning machine further comprises a servo motor for driving the lifting mechanism.

Optionally, the lifting mechanism is provided with a pair of lifting mechanisms, and the lifting mechanisms and the seat parts are arranged at two axial ends of the spike roller group in a one-to-one correspondence manner;

Correspondingly, the two lifting mechanisms are synchronized through the synchronizing mechanism.

Optionally, the lifting mechanism includes:

The two screw lead screw mechanisms are arranged at intervals in the distribution direction of the spike roller;

The transmission shaft is used for synchronous transmission between the two screw lead screw mechanisms;

a screw or nut in the screw-nut screw mechanism constitutes the end follower;

If the nut is a tail end driven piece, a lifting rod which extends vertically to the base plane and is connected with the seat part is fixedly arranged on the nut;

if the screw is a terminal follower, the axial direction of the screw is perpendicular to the base plane, and the terminal of the screw is connected to the seat.

Optionally, the seat is a cross beam;

Correspondingly, two ends of the spike roller are provided with shaft seats which are fixed on the cross beam;

And the end parts of the cross beams are fixed on the sliding blocks of the guide rail assemblies at the ends of the cross beams.

Optionally, the axle seat is fixed to the first side of the cross beam.

In the embodiment of the invention, the grid bars matched with the grid bars are not all the grid bars fixedly arranged, but part of the grid bars form the adjustable grid bars, and the other part of the grid bars are fixed grid bars which are sequentially arranged at intervals with the adjustable grid bars. The adjustable grating is supported on the support plates at the two sides based on the first shaft neck, the adjustable grating is provided with a rotation degree of freedom and is adapted to be a cam column grating, and therefore the adjustable grating can be rotated, the gap between the adjustable grating and the adjacent fixed grating can be changed, and the adjustment of grating gaps of the grating can be realized, and the adjustable grating is suitable for the technical development direction of a pattern matching vehicle.

Drawings

Fig. 1 is a schematic diagram of an assembly structure of an intermediate distance adjusting mechanism on a seed cotton cleaning machine according to an embodiment.

Fig. 2 is a schematic diagram of an assembly structure of a lattice bar gap adjusting mechanism on a seed cotton cleaning machine in an embodiment.

Fig. 3 is a schematic view (enlarged double) of the cross-sectional A-A view of fig. 2.

Fig. 4 is a schematic view (with a part of a shell broken away) of an assembly structure of a separator gap adjustment mechanism on a seed cotton cleaning machine according to an embodiment.

Fig. 5 is a schematic diagram illustrating an assembly structure of a grid bar on a grid bar according to an embodiment.

Fig. 6 is a schematic view of the cross-sectional B-B structure of fig. 5.

Fig. 7 is a tri-state schematic of a grid.

In the figure: 1. the device comprises a shell, 2, a guide rail, 3, a sliding block, 4, a servo motor, 5, a screw lead screw assembly, 6, a transmission shaft, 7, a cross beam, 8, an axle seat, 9, an axle, 10, a spike roller, 11, a grid bar grid, 12, a lifting rod, 13, a hinge shaft, 14, a junction box, 15, an electric push rod, 16, a screw, 17, a positioning block, 18, a crank arm, 19, an adjustable grid bar, 20, a rocker arm, 21, a hinge shaft, 22, an axle sleeve, 23, a side supporting plate, 24, an intermediate supporting plate, 25, a sliding sleeve, 26, a hinge shaft, 27, a fixed grid bar, 28, an arc edge, 29, a fixed plate and 30.

S1, a first state, S2, a second state, S3 and a third state.

Detailed Description

The housing 1 shown in fig. 1,2 and 4 is a housing 1 of a seed cotton cleaning machine, in general the part vertically surrounding the equipment inside the housing 1 is often referred to as a wall panel, the lower end of the housing 1 is often configured as a stand, and the upper part may be referred to as a top panel.

As the pattern matching vehicle is the development direction of the current cotton processing machinery, the online adjustable working parameters of cotton processing equipment are the main development direction. In the embodiment of the invention, the adjustment of the working parameters of the seed cotton cleaning machine is reflected on two working parameters, namely the adjustment of the spacing between the grid plate group and the spike roller group and the adjustment of the spacing between the grid plates on the grid plate.

The spike roller set shown in fig. 1 has six spike rollers 10, and the lattice bars 11 adapted to the lattice bar set also has six spike rollers, and in the chinese patent document CN204849154U, the number of spike rollers 10 is six, which is a basic configuration of the seed cotton cleaning machine, and will not be described herein.

Fig. 1 shows a horizontal seed cotton cleaning machine, and it is understood that the pitch adjustment mechanism is equally applicable to an inclined seed cotton cleaning machine as disclosed in chinese patent document CN204849154U, and the pitch adjustment of both types of seed cotton cleaning machines is shown as linear adjustment, which is not different.

In addition, the spike roller 10 and the grating 11 matched with the spike roller are both horizontal seed cotton cleaner and inclined seed cotton cleaner, and the spike roller and the grating 11 are of an up-down structure.

At present, the cotton gin is mainly embodied in an cotton gin, and has no excessive attention to a seed cotton cleaning machine, and the seed cotton cleaning machine is relatively extensive, and is mainly characterized in that heavy impurities, dust, broken cotton leaves and the like are primarily cleaned, so that the relatively extensive working mode is easy to be ignored by a person skilled in the art.

As described in the background section, the two important working parameters of the existing seed cotton cleaning machine are fixed and cannot be adjusted according to the properties of seed cotton, and the matching of the seed cotton with the machine cannot be achieved. The first operating parameter, namely the spacing between the grid set and the spike roller set, is described below.

For convenience of description, a plane defined by the coplanarity of the axes of the spike rollers 10 in the spike roller group is a base plane, such as a horizontal plane passing through the axes of the spike rollers 10 in fig. 1, and an inclined plane passing through the axes of the spike rollers is shown in chinese patent document CN 204849154U.

Accordingly, the grating groups, whether in a horizontal seed cotton cleaner or an inclined seed cotton cleaner, are located below the base plane, which is denoted as the first side.

The shaft seat 8 of the traditional seed cotton cleaning machine is directly and fixedly assembled on the shell 1 of the seed cotton cleaning machine, in particular to a wallboard, and the position is fixed and cannot be adjusted.

In the construction shown in fig. 1, a cross beam 7 is provided as a seat, the cross beam 7 being parallel to the material transport direction of the seed cotton cleaning station of the seed cotton cleaning machine or to the arrangement direction of the spike roller set, the cross beam 7 being used for the support of the spike roller shaft of the spike roller set, in fig. 1 the shaft 9, the shaft 9 being mounted on the cross beam 7 by means of a bearing seat, i.e. the shaft seat 8 shown in fig. 1.

In some embodiments, for split bearing blocks, the base part may be provided directly by the cross beam 7 shown in the figures, the cover part being bolted to the base part provided on the cross beam 7 to form the bearing block 8.

The preferred construction is that the axle seat 8 shown in fig. 1 constitutes a bearing seat, the axle seat 8 being mounted on the cross beam 7 by means of screws or bolts.

Fig. 1 shows an axial view of the shaft 9, reflecting only the structure of one end of the shaft 9, and it is understood that the spike roller 10 needs to be supported at both ends, and therefore, the cross beam 7 needs to be provided with one at each end of the shaft 9.

In the structure shown in fig. 1, the cross beam 7 is suspended by a terminal follower of the lifting mechanism.

It will be appreciated that, as described above, whatever seed cotton cleaning machine has a defined up-down state between the grating 11 and the spike roller 10, the lifting is adapted to this basic configuration.

In the figure, the lifting mechanism is located on the second side of the base plane, i.e. the upper side as shown in the figure, and its end follower is connected to the seat.

In the presence of an independent lifting mechanism, the relative position between the grid bar group and the spike roller group can be controlled, whether mechanically or hydraulically driven, so that the spacing can be adjusted.

Meanwhile, the adjustment of the mechanical drive or the hydraulic drive can be completed by a control end of the equipment, such as an onboard controller or a PLC of the seed cotton cleaning machine, so that the control device can be integrated into the whole program control.

In particular, with the development of technology, the quality of seed cotton, such as impurity content, moisture regain and the like, can be monitored on line, and under the condition, automatic adjustment can be introduced. Since the present invention protects the product structure, its subsequent modifications or applications are not described in detail herein.

In some embodiments, the seat constitutes a general frame on which all the spike rollers 10 are mounted, a single frame being driven by a single lifting mechanism.

In a preferred embodiment, to reduce the constructional complexity, two beams 7 are provided, and the adapted lifting mechanisms are provided with a pair of lifting mechanisms, which are arranged at the two axial ends of the spike roller set in a one-to-one correspondence with the beams 7.

Correspondingly, the two lifting mechanisms are synchronized through the synchronizing mechanism.

Regarding synchronization, the transmission shaft is mainly adopted for synchronization in the mechanical field, and the transmission shaft can realize long-distance transmission. The two ends of the transmission shaft are generally provided with bevel gears, the corresponding bevel gears are identical in size, and the driving gear and the driven gear which are matched are identical in size, so that the traditional ratio is 1:1.

Since there is a certain arrangement space in the arrangement direction of the spike roller 10, in order to improve the stability of lifting, the lifting mechanism includes:

the two screw lead screw mechanisms are arranged at intervals in the distribution direction of the spike roller 10;

the transmission shaft 6 is used for synchronous transmission between the two screw lead screw mechanisms;

a screw or nut in the screw-nut screw mechanism constitutes the end follower;

If the nut is a tail end driven piece, a lifting rod 12 which extends vertically to the base plane and is connected with the seat part is fixedly arranged on the nut;

if the screw is a terminal follower, the axial direction of the screw is perpendicular to the base plane, and the terminal of the screw is connected to the seat.

The nut can be assembled with a bevel gear as an integral part of the upper section, and a drive bevel gear is arranged on the transmission rod as a driven gear, which are engaged for driving the screw spindle mechanism on the right side, for example. The screw lead screw mechanism positioned at the left side is similar.

In the structure shown in fig. 1, two ends of the spike roller 10 are provided with shaft seats 8, and the shaft seats 8 are fixed on the cross beam 7;

the guide rail assemblies normal to the basal plane are arranged at the two ends of the cross beam 7, and the end parts of the cross beam 7 are fixed on the sliding blocks 3 of the guide rail assemblies at the ends.

In the field of machinery, a rail assembly generally includes a rail 2 and a slider 3 forming a rail pair with the rail 2, and the rail 2 shown in the drawing is a linear rail.

In the preferred embodiment, the axle seat 8 is fixed to the first side of the cross beam 7, i.e. the lower side as shown in fig. 1, which reduces the length of the lifting rod 12, and at the same time, the hanging structure is easy to arrange and has a relatively good stability.

In the mechanical field, the mechanism may be referred to as a machine, and, for example, in fig. 1, the servo motor 4 is provided for the lifting mechanism, and then the mechanism may be referred to as a pitch adjuster.

In the figure, a shell 1 is a shell of a seed cotton cleaning machine, and a guide rail 2 is fixedly arranged on the shell 1 or a rack in the shell 1.

Likewise, the housing of the screw assembly in the figures is also fixed to the housing 1 or to a frame within the housing 1.

The following describes a grid gap adjustment mechanism on the grid 11:

Unlike the conventional grid 11, in the embodiment of the present invention, the grid 11 has a gap adjusting capability, and thus the layout of the grid thereon is different from that of the existing grid 11.

The portion of the grating bar 11 located thereunder opposite to the spike roller 10 is substantially arc-shaped for laying the grating bars, and the other portion of the grating bar 11 mainly provides support for this portion. The support provided is provided with a main support having a substantially rectangular frame structure in a plan view, and the main support has a side support plate 23 on the left and right sides and a fixing plate 29 on the front and rear sides.

It will be appreciated that on cotton processing machinery, such as seed cotton cleaners, gins and the like, the direction of incoming material is backward and conversely forward, depending on the direction of material transport, as shown in fig. 1, if seed cotton enters from the left end, the left end is forward and the right end is rearward. The inclined seed cotton cleaner is also similar to the inclined seed cotton cleaner, like the Chinese patent document CN204849154U, one end of the supplied material is an upward end, and in the horizontal direction, the end where the supplied material is positioned is a front end, and the lower end is a rear end. The side support plates 23 are necessary structures, and one or both of the fixing plates 29 located at the front and rear may be omitted, and may be replaced with other structural members, such as a section steel member, for connection between the side support plates 23 to be referred to as a single body.

The welding structure is adopted between the grid bars and the two side supporting plates 23 on the traditional grid bar grating 11, so that the connection strength is high. In the embodiment of the present invention, part of the bars, specifically the fixed bars 28 in fig. 5, are welded by girth welding after penetrating into the pre-opened holes of the support plates 23 at both sides, so as to secure the overall structural strength.

Further, regarding the two side support plates 23, which are disposed parallel to each other and vertically, a steel plate support may be used, the upper edge of the side support plate 23 is provided with an arc portion, the position of the arc portion is provided with an arc edge 28 in fig. 5, the arc edge 28 is the upper edge of the arc portion, the center of the arc edge 28 falls on the axis of the spike roller 10, and similarly, the axes of the lattice bars distributed on the arc portion are distributed on the cylindrical surface with the axis of the spike roller 10 as the axis.

Correspondingly, the arc-shaped part is provided with a plurality of first supporting holes and a plurality of first supporting holes, the first supporting holes and the first supporting holes are sequentially arranged at intervals, the sum of the numbers of the first supporting holes and the first supporting holes on one side supporting plate 23 is the number of the grid bars, and the first supporting holes on the other side supporting plate 23 are arranged in an alignment mode so as to ensure that the grid bars are parallel to each other.

Regarding the adjustment of the spacing between the bars, depending on the adjustable bars 19, in the embodiment of the invention the adjustable bars 19 are supported on the side support plates 23 with a degree of freedom of rotation, the location where the adjustable bars 19 are supported is called the first journal.

The term journal is used in the mechanical field to refer to a shaft section of a shaft for mounting a bearing.

With respect to the bearing for which the adjustable bars 19 are adapted, sliding bearings are preferred, and in some embodiments capped rolling bearings may also be used.

The sliding bearing is relatively simple in construction, and even without a friction interface, a shaft can be understood to be a sliding bearing with a swivel capability by being directly received in a given socket.

Suitably, the adjustable bars 19 have a first journal at least at each end, so that the adjustable bars 19 can be supported by the first journals in corresponding first bearing holes, which have a rotational degree of freedom.

In the case of a cylindrical lattice bar, the axis of the shaft diameter is coaxial with the axis of the cylindrical lattice bar body, and thus, the adjustment cannot be performed, and thus, the cam column lattice bar is adopted as the adjustable lattice bar 19.

The cam is a generalized concept, the rotation axis of which may or may not be the core of which, for example, a cylinder may be configured, and the cam may be configured as long as the rotation axis of the cylinder is parallel to and at a distance from the rotation axis of the cylinder.

When the cam rotates, the distance between the profile surface of the adjustable grating and the profile surface of the fixed grating 27 changes in a certain direction, for example, in the direction of the connecting line between the fixed grating 27 and the adjustable grating 19 in fig. 7, so as to meet the requirement of space adjustment.

The fixed grating 27 may be a conventional grating, such as a grating with a quadrangular structure, a cylindrical grating, and is different from the adjustable grating 19, and two ends of the fixed grating 27 are fixedly assembled in the first supporting holes at the ends, and the fixed assembly is preferably a welding structure as described above.

Further, each of the adjustable straps 19 extends from at least one of the journals to form an overhang of the first support hole at the end from which it extends, the overhang being provided with a stub shaft for use as the actuated end.

With respect to stub shafts, the assembled on-shaft components are generally defined as power input or power output components, such as the crank arms 18 shown in fig. 2-4, the crank arms 18 being mounted on the stub shafts, the two being connected by a keyed connection, or welding, for applications where there is no high demand, while achieving both axial and circumferential locking.

With a keyed connection, the axial positioning and locking of the lever 18 on the adjustable bar 19 can be performed using, for example, a shoulder, i.e., a snap spring.

In some embodiments, if the inner end of the lever 18 is shoulder-limited, the outer end may also be secured, for example, using a round nut.

In the structure shown in fig. 3 and 6, two intermediate support plates 24 are further provided in the space between the two side support plates 23, and the intermediate support plates 24 serve to provide additional support for the lattice bars, reduce the span, and are less likely to generate flexural deformation.

If the machine frame is smaller, only the two side support plates 23 may be used, and if the machine frame is larger, more intermediate support plates 24 may be used, the number of intermediate support plates 24 being positively correlated with the machine frame size.

Accordingly, a second support hole and a second support hole are respectively formed in the intermediate support plate 24, wherein the second support hole is aligned with the first support hole, and the second support hole is aligned with the first support hole.

Further, the second support hole is for rotatably supporting the adjustable bar 19, and the second support hole is for fixedly supporting the fixed bar 27.

The portion of the adjustable strap 19 supported by the second support hole is adapted to form a second journal.

It should be noted that, with respect to the aforesaid cam post lattice bar, the portion configured as a cam post is first the working portion thereof, i.e. the portion that cooperates with the spike roller 10 for cleaning, which portion and the first and second journals may be referred to as the body of the adjustable lattice bar 19.

As mentioned above, seed cotton cleaning machines are relatively extensive with respect to other cotton processing equipment, in which the body of the adjustable bars 19 is a drift diameter piece for cost saving purposes.

Further, referring to fig. 3, the first journal and the second journal are configured to: a sleeve 22 with a friction interface is provided, which sleeve 22 is fixed in place where the adjustable bars 19 are fitted. In fig. 3, the sleeve 22 is shown with the second bearing hole in the intermediate support plate 24, which is a correspondingly hatched part, and is not designated by a reference numeral.

In some embodiments, the adjustable grating 19 does not use an drift diameter piece, but rather is a multi-section shaft structure, which is adapted to the first journal and the second journal positions, and the shaft diameters are machined, and the corresponding adjustable grating 19 is represented as a multi-section shaft structure, which is slightly more expensive to machine.

With respect to the sleeve 22, the assembly thereof on the adjustable bars 19 may be performed simply, the sleeve 22 corresponds to a geometrically external sleeve of the adjustable bars 19, which is geometrically external in cross section, and then the side of the sleeve 22 is provided with a set screw hole, which is generally a countersunk hole, the presence of the set screw not affecting the realization of the sleeve 22 forming the bearing shell.

The set screw may be either open to the point where the sleeve 22 contacts the adjustable strap 19 or open to the point where it is disengaged from the adjustable strap. The latter is preferred, and the set screw can provide some additional support, which is beneficial to ensuring the overall roundness of the sleeve 22.

Accordingly, the mounting of the sleeve 22 on the adjustable bars 19 is by means of a set screw.

Further, the first support holes and the first support holes distributed over the arcuate portion form an arcuate array, which is a general structure in the art that requires adaptation to the lower profile of the spike roller 10. In the embodiment of the present invention, the holes at both ends of the array are first supporting holes, that is, the mounting holes for fixedly mounting the fixing grid bars 27, and the fixing grid bars 27, the side supporting plates 23, and the middle supporting plates 24 are preferably welded structures, and the grid bars at the outermost edges are fixed and assembled structures, so that the grid bars 11 can obtain relatively high structural strength.

As further shown in fig. 5, the holes inside the first support holes at both ends of the array are also first support holes.

As can be seen in the structure shown in fig. 5 and 6, the two side support plates 23 are connected with the fixing plates 29 at both ends of fig. 5, and the left and right ends of the two side support plates 23 in fig. 5 are the front and rear ends of the seed cotton cleaning machine.

The welding structure between the fixing plate 29 and the both side support plates 23 is preferable to ensure the overall structural strength.

Further, the upper end of the fixing plate 29 is folded inwardly to the arc portion to form a wrapping plate 30, and the wrapping plate 30 is fixedly connected to the wrapped portion of the upper edge, and the fixed connection is preferably welded.

With respect to inward, in the structure shown in fig. 5, the portion defined between the two fixing plates 29 is inward, and vice versa.

As for the connection between the fixing plate 29 and the both side support plates 23, and between the sheathing plate 30 and the sheathing part, riveting or bolting may be used.

Since, for example, the fixing plate 29 is perpendicular to the side support plate 23, additional members are required for riveting or welding, for example, ribs are welded on the fixing plate 29, the ribs are sheet-like plates, the ribs are parallel to the side support plate 23, bolt holes or rivet holes are aligned after stacking, and then fastening is performed by bolts or rivets.

Regarding the shape of the adjustable grating 19, in a preferred embodiment, as shown in fig. 7, it can be seen that the cross section of the adjustable grating 19 is generally elliptical, also shown as approaching a waist with a rectangular middle and semi-circular ends. The structure has smooth outline and is not easy to damage seed cotton fibers.

Regarding the adjustment of the pitch of the grid 11, the adjustment mechanism is adapted to the grid gap adjustment mechanism, see fig. 2 to 5, where the grid gap adjustment mechanism includes:

the crank arm 18 is mounted on the shaft head, and the crank arm 18 extends downwards in the drawing.

A synchronizing member is provided to combine all of the crank arms 18 to synchronously drive the respective adjustable bars 19 so that the respective gap adjustments are in a synchronized state to ensure substantial uniformity of the gaps.

Further, a drive assembly is provided, an end member of which is connected to the synchronizing member.

It will be appreciated that the adjustment of the gap of the bars on the grid 11 is in effect an adjustment of the rotation angle of the adjustable bars 27. While the lever 18 is merely used to distinguish from other components, and is not meant to be a particular structure, it is understood that, for example, a gear may transmit torque, and necessarily have a certain arm, and may be equivalently a lever.

In some embodiments, the synchronization may be performed using a gear drive, the crank arm 18 being configured as an input gear or as an input sector gear (the sector gear being more like a bar), and since the turning of the adjustable bars 19 is identical, for example, an idler gear is arranged between the input gears, which may be understood as a synchronizing member.

In some embodiments, the synchronizing member is a rocker arm 20 shown in fig. 4, the rocker arm 20 having the following structure:

The working part is an arc body, and the cambered surface of the arc body is concentric with the arc of the arc part; the arc bodies are provided with hinge holes which are in one-to-one correspondence with the crank arms 18, and the hinge holes form a secondary arc array on the arc bodies.

The lower part of the arc body is provided with a force arm part which is an arm part formed by downwards extending from the middle part of the arc body.

Further, the hinge holes at two ends of the secondary arc array are round holes, and the rest hinge holes contain motion interference avoiding gaps. The key point of the interference avoidance gap is that the radial movement amounts of the hinge shaft 26 at the lower end of the crank arm 20 at different positions on the arc-shaped part are different, so that the movement of the simple rocker arm 20 cannot meet the smoothness of the movement path of the hinge shaft 26, namely, movement interference is formed, the interference avoidance gap in the figure and a round hole of a foundation form an integral strip-shaped hole, and the interference avoidance gap can be obtained based on simple movement analysis and is not repeated herein.

In the construction shown in fig. 2 and 4, the drive assembly is an electric push rod 15, the tail of the electric push rod 15 is hinged to the frame of the applied seed cotton cleaning machine, and the push rod provided by the electric push rod 15 forms the end member and is hinged with the arm part.

In a preferred embodiment, a third shaft diameter is arranged between the shaft head and the first shaft diameter;

correspondingly, the third shaft diameter is supported in a pre-opened seat hole on the wallboard of the applied seed cotton cleaning machine, so that the shaft head is exposed out of the wallboard of the seed cotton cleaning machine, is easy to control and is not influenced by the severe environment in the seed cotton cleaning machine.

Claims (17)

1. A grating for a seed cotton cleaning machine, the grating comprising:

The upper edges of the side support plates are provided with arc-shaped parts, the arc-shaped parts are provided with a plurality of first support holes and a plurality of first support holes, and the first support holes are sequentially arranged at intervals;

An adjustable bar having first journals at both ends thereof to be fitted into the first bearing holes through the first journals to have a degree of freedom of rotation; the adjustable grating is a cam column grating; and

The two end heads of the fixed grid bar are fixedly assembled in the first supporting holes at the end;

wherein each adjustable lattice bar extends from at least one journal to form an overhanging part which protrudes outwards from a first supporting hole at the end of the adjustable lattice bar, and the overhanging part is provided with a shaft head to serve as an actuated end;

at least one middle supporting plate is arranged between the supporting plates at the two sides, and a second supporting hole are correspondingly formed in the middle supporting plate;

Correspondingly, the second supporting hole is used for rotatably supporting the adjustable lattice bars, and the second supporting hole is used for fixedly supporting the fixed lattice bars;

wherein the portion of the adjustable strap supported by the second support hole forms a second journal;

the first supporting holes and the first supporting holes distributed on the arc-shaped part form an arc-shaped array, and the holes at the two ends of the array are the first supporting holes.

2. The grid electrode according to claim 1, wherein the body of the adjustable grid electrode is an drift diameter member;

the first journal and the second journal are configured to: a sleeve having a friction interface is provided and secured in place with the adjustable strap.

3. The grid grating according to claim 2, wherein the sleeve is provided with set screw holes on the side;

Accordingly, the mounting structure of the sleeve on the adjustable bars is by means of a set screw.

4. The grid of claim 1, wherein the holes inside the first support holes at both ends of the array are also first support holes.

5. The grid grating according to claim 1, wherein the front and rear ends of the two side support plates are fixedly connected with fixing plates;

The upper end of the fixing plate is folded inwards to the arc-shaped part to form a wrapping plate, and the wrapping plate is fixedly connected with the wrapped part wrapping the upper edge.

6. The grid structure according to claim 5, wherein the fixed connection between the fixing plate and the two side support plates, and between the wrapping plate and the wrapped portion is a weld.

7. The grid gate according to claim 1, wherein the cross section of the adjustable grid body is oval or rectangular in middle and semi-circular in waist shape at both ends.

8. A grid gap adjustment mechanism for adjusting the grid gap on a grid as set forth in any one of claims 1 to 7, comprising:

The crank arm is arranged on the shaft head;

a synchronizing member coupling all the crank arms to synchronously drive the corresponding adjustable bars;

a drive assembly, an end member of which is connected to the synchronizing member.

9. The grid bar clearance adjustment mechanism of claim 8, wherein the synchronization member comprises:

An arc body, wherein the arc surface of the arc body is concentric with the arc of the arc part; the arc body is provided with hinge holes which are in one-to-one correspondence with the crank arms, and the hinge holes form a secondary arc array on the arc body;

the force arm part is an arm part which is formed by extending downwards from the middle part of the arc body;

the hinge holes at two ends of the secondary arc array are round holes, and the rest hinge holes contain motion interference avoiding gaps.

10. The grid gap adjustment mechanism of claim 9, wherein the drive assembly is an electric push rod with a tail hinged to a frame of an applied seed cotton cleaner, the push rod provided by the electric push rod constituting the end member and being hinged to the arm of force.

11. The lattice bar clearance adjustment mechanism of claim 8, wherein a third journal is provided between the stub shaft and the first journal;

Accordingly, the third journal is supported in a pre-opened seat hole on the wallboard of the applied seed cotton cleaning machine, and the shaft head is exposed outside the wallboard of the seed cotton cleaning machine.

12. A seed cotton cleaning machine provided with the grid gap adjustment mechanism according to any one of claims 8 to 11.

13. A seed cotton cleaning machine according to claim 12 including a spacing adjustment mechanism for spacing adjustment between the spike roller set and the grating sets, the plane defined by the co-planarity of the axes of the spike rollers in the spike roller set being the base plane, the grating sets being located on a first side of the base plane, the spacing adjustment mechanism comprising:

a seat part for supporting the spike roller shafts of the spike roller groups, and one seat part is respectively arranged at two axial ends of the spike roller groups; and

The lifting mechanism is arranged on the seed cotton cleaner shell or the shell inner frame at the second side of the base plane, and the tail end driven piece of the lifting mechanism is connected with the seat part;

Wherein the second side is opposite to the first side;

the seed cotton cleaning machine further comprises a servo motor for driving the lifting mechanism.

14. Seed cotton cleaning machine according to claim 13, characterized in that the lifting mechanism is provided with a pair of lifting mechanisms which are arranged at two axial ends of the spike roller set in one-to-one correspondence with the seat parts;

Correspondingly, the two lifting mechanisms are synchronized through the synchronizing mechanism.

15. Seed cotton cleaning machine according to claim 14, characterised in that the lifting mechanism comprises:

The two screw lead screw mechanisms are arranged at intervals in the distribution direction of the spike roller;

The transmission shaft is used for synchronous transmission between the two screw lead screw mechanisms;

a screw or nut in the screw-nut screw mechanism constitutes the end follower;

If the nut is a tail end driven piece, a lifting rod which extends vertically to the base plane and is connected with the seat part is fixedly arranged on the nut;

if the screw is a terminal follower, the axial direction of the screw is perpendicular to the base plane, and the terminal of the screw is connected to the seat.

16. Seed cotton cleaning machine according to claim 13, characterized in that the seat is a cross beam;

Correspondingly, two ends of the spike roller are provided with shaft seats which are fixed on the cross beam;

And the end parts of the cross beams are fixed on the sliding blocks of the guide rail assemblies at the ends of the cross beams.

17. A seed cotton cleaning machine according to claim 16, characterised in that the shaft seat is fixed to the first side of the cross beam.