WO2017049807A1

WO2017049807A1 - Cotton picking needle, cotton removing sleeve, and power structure for cotton picking machine

Info

Publication number: WO2017049807A1
Application number: PCT/CN2016/000287
Authority: WO
Inventors: 田永军
Original assignee: 田永军
Priority date: 2015-09-26
Filing date: 2016-05-31
Publication date: 2017-03-30

Abstract

A cotton picking needle, a cotton removing sleeve, and a power structure for a cotton picking machine. The cotton picking needle comprises a needle (1) and a group of grooves (2) provided on the needle (1) and arranged in parallel with the axis of the needle; a group of cotton picking teeth (3) are provided between every two adjacent grooves (2); and the cross section of the bottom of the groove (2) is arc-shaped. The arc-shaped bottoms of the grooves on the cotton picking needle are in line contact with arc-shaped guiding keys of the cotton removing sleeve, so that the cotton picking needle can be positioned at the axis of the cotton removing sleeve.

Description

Feeding structure of cotton picking needle, cotton removal sleeve and cotton picker

Technical field and

The invention relates to the technical field of cotton picking, in particular to a cotton picking needle, a cotton removing sleeve matched with the cotton picking needle, and a force feeding structure of the cotton picking machine, wherein the cotton picking needle and the above cotton picking needle are used Take off the cotton sleeve.

Background technique

In order to solve the problem of the large number of workers in the cotton picking season and the high labor intensity of the workers, various kinds of mechanical cotton picking have been developed to effectively improve the efficiency of cotton picking and reduce the labor intensity of the cotton pickers. One of the large-scale cotton pickers introduced from the United States, the cotton picking machine comprises a cotton picking needle provided on the drum and the drum, the cotton picking needle is driven by a hydraulic mechanism in the drum, and the picking needle and the drum are also rotated in synchronization. When the cotton picking needle adopts the winding method to obtain the seed cotton, it must be rotated by the high speed rotation of the other structural member (the cotton removing disc), and the frictional force applied to the cotton fiber is reversed with respect to the cotton picking needle to realize the seed cotton detachment. Cotton picking needles, in which the seed cotton must be sprayed with water to improve the cotton removal effect and to prevent fire hazards. There are two main defects in this technology. One is to consume a large amount of energy to remove moisture in the later processing (the general machine cotton processing process is equipped with two drying equipment); the second is that strong cotton removal will cause cotton fiber. damage.

In order to solve the above problems, the applicant has successively developed a number of mechanical cotton picking devices, the core device of which mainly uses telescopic cotton picking components to mechanically pick and detach cotton. That is, the power device drives the cotton picking needle to slide along the annular sliding groove in the outer circumference of the guiding disc. Since the guiding disc is eccentrically arranged, the cotton picking needle performs axial telescopic movement while performing linear displacement, and the cotton picking needle is self-transmitted. The cotton is wound on the cotton picking needle to complete the picking of the cotton; the cotton removing sleeve disposed on the frame is slidably matched with the cotton picking needle, and rotates synchronously with the cotton picking needle, when the cotton picking needle is retracted relative to the cotton removing sleeve The cotton wrapped around the cotton picking needle is detached under the action of the cotton strip.

Specifically, the existing cotton picking needle comprises a needle body, and a plurality of grooves are arranged on the outer peripheral surface of the needle body at intervals along the axial direction of the needle body, the groove is a square groove, and between the adjacent two grooves The axial ribs are evenly spaced apart and arranged with the cotton picking teeth arranged along the axial direction of the needle body, and the outer convex corners of the cotton picking teeth are all close to the needle body head; the existing cotton removing sleeve comprises a sleeve body, and the sleeve body The head is conical, and a plurality of guiding keys are arranged on the inner wall of the sleeve so as to be slidingly matched with the groove on the cotton picking needle, and the guiding key is a square key. Since the outer convex corners of the cotton picking teeth are all arranged close to the head of the needle body, the cotton removing sleeve can conveniently remove the cotton wrapped around the cotton picking needle from the needle tail to the needle direction, thereby effectively avoiding the cotton being easy to pick and detachable. The drawbacks. With this scheme, cotton can be picked and detached very conveniently. The square groove and square structure are simple, easy to process, and can withstand variable load and impact resistance. However, the following disadvantages exist: 1. Because the groove on the cotton picking needle is The square groove, the guiding key on the cotton removing sleeve is a square key, and the contact between the groove and the guiding key is in surface contact, and it is difficult to position the cotton picking needle on the axis of the cotton removing sleeve, which may easily lead to the outer circle and the cutting edge of the cotton picking needle (ie, mining) Collision between the cotton tooth and the inner wall of the cotton strip, thereby causing wear of the outer circumference of the cotton picking needle and the cutting edge (ie, the picking tooth); 2. Since the groove on the cotton picking needle is a square groove, the guiding key on the cotton removing sleeve is a square key, and the groove on the cotton picking needle is in surface contact with the guiding key on the cotton removing sleeve, and the friction resistance is large, which not only makes the mining The axial telescopic movement of the cotton needle is not smooth, and the cotton picking needle is easily broken during work, and the temperature rise caused by the friction between the cotton picking needle and the cotton removing sleeve easily leads to spontaneous combustion of the cotton; Third, square groove and Fang Jianyi The entanglement of the cotton wadding is not conducive to cotton removal, and the high temperature generated by the joint between the cotton picking needle and the cotton quilting sleeve easily ignites the entangled cotton wool, resulting in a fire hazard.

The Chinese invention patent with the publication number CN102090213B discloses a cotton picking needle and a mechanical cotton picking device equipped with the cotton picking needle, which is driven by a power machine such as an electric motor or a gasoline and diesel engine to rotate the active rotating shaft, and then drives the wrapping around the main and the driven. The driving belt on the rotating shaft rotates clockwise from bottom to top. Since both sides of the cotton picking needle holder are respectively provided with the cotton picking needle and the driving pin shaft, the driving pin shaft is connected with the driving belt, so that when the driving belt is When rotating, the picking needle holder is driven by the driving pin shaft, and a roller and a gear are respectively arranged at the end portions of the central shaft in each of the cotton picking needle holders, and the gear meshes with the teeth, with The rotation of the gear drives the central shaft in the cotton picking needle holder to drive the respective cotton picking needles to rotate through the bevel gear pair. The cotton picking needle rotates at the same time as the cotton picking needle seat moves from bottom to top, thereby The cotton fibers are wrapped around the picking needle. Since the cotton picking needle structure of the present invention is combined with the carding sleeve on the cotton picking needle, the cotton fiber can be quickly and efficiently detached. The suction port is located at the rear side of the upper side of the casing, and the inner and outer annular grooves at the front part of the casing are vertically arranged and close to each other, and the upper rear groove body of the outer annular groove is adjacent to the suction port, and the groove body is The radial straight line distance of the inner annular groove is equal to the length of the picking needle. Thus, when the picking needle is moved to the tank portion, the card loop is just as the card is moved to the head of the picking needle, and the cotton fiber that has been removed is sucked into the suction port by the fan. With such a reciprocating cycle, the cotton picking operation can be completed quickly and efficiently.

Although the above scheme can be used to pick and detach cotton, it has the following disadvantages:

1. Many running faults are easy to be stuck; 2. The machining process is poor, and the assembly accuracy is not easy to guarantee.

Therefore, the applicant urgently needs to improve the existing cotton picking needles and cotton removing sleeves to overcome the above disadvantages and deficiencies.

Summary of the invention

The invention firstly provides a cotton picking needle, that is, a cotton removing sleeve, which has a reasonable structural design, and the sliding cooperation between the cotton picking needle and the cotton removing sleeve is positioned by the curved groove bottom of the cotton picking needle groove and the curved guiding key of the cotton removing sleeve. Therefore, the cotton picking needle is positioned on the axis of the cotton removing sleeve, and the inner wall of the cotton removing sleeve is not worn on the cotton picking needle on the cotton picking needle, and the arc groove bottom of the cotton picking needle groove and the cotton guiding sleeve guiding key The contact area is small, the frictional resistance when the cotton picking needle is used in combination with the cotton removing sleeve is reduced, the axial stretching movement of the cotton picking needle is smoothed, and the wrapping of the cotton wool is reduced; the invention also discloses a cotton picking The force-applying structure of the cotton picker used in the needle is smooth, not easy to be stuck, has few running failures, and has good processing technology and assembly precision can be guaranteed. The technical solution adopted is: a cotton picking needle comprising a needle body (1), a set of grooves (2) on the needle body (1) parallel to the axis of the needle body, and each adjacent two grooves (2) A set of cotton picking teeth (3) is arranged between them, characterized in that the groove bottom of the groove (2) has an arc shape in cross section.

The technical feature of the invention is also that a rear corner (4) is provided on the picking teeth (3).

The technical solution of the present invention further comprises a cotton removing sleeve for use with the cotton picking needle according to claim 1, comprising a sleeve body (7), characterized in that a set of concave and concave is arranged on the inner wall of the sleeve body (7). The groove (2) slides the matching guide key (8), the guide key (8) is arranged parallel to the axis of the sleeve body (7), and the top end of the cross section of the guide key (8) is curved.

Further, the technical feature of the present invention is that the top end of the cross section of the guide key (8) has a circular arc shape, and the center of the circular arc is disposed on a circle of the same diameter centered on the axis of the casing (7).

The technical feature of the present invention is that the first gap (9) between the inner wall of the casing (7) and the top of the cotton picking tooth (3) is larger than the top of the sleeve guiding key (8) and the bottom of the groove (2) The second gap (10) between.

The technical solution of the present invention further comprises: a power feeding structure of the cotton picker, comprising a frame, characterized in that: two symmetrically arranged oblong tooth plates are arranged on the left and right sides of the frame, in two oblong circles A set of eccentric guide discs are arranged on the frame between the tooth plates and below the box body, and a limit chute is arranged along the circumferential contour of each eccentric guide disc, and the eccentric guide disc and the limit chute are symmetrically arranged. a set of cotton picking needle assemblies are arranged in each of the limiting chutes; each of the cotton picking needle assemblies comprises a cotton picking needle holder, and a set of cotton picking needles are arranged along the length direction in the cotton picking needle holders, The free end of the root picking needle is movably connected to the picking needle holder through a bearing, and a set of connecting rods are arranged at the bottom of the picking needle holder, and one end of each connecting rod is fixedly connected with the cotton picking needle holder, and each connecting rod is connected The other end is provided with a ball socket, and a rolling body located in the upper slot of the eccentric guiding plate is arranged in the ball socket, and a cotton removing sleeve is also arranged on the cotton picking needle.

The technical feature of the present invention is that the outer side surfaces of the two oblong circular tooth plates are respectively provided with a symmetrically arranged annular boss which is the same as the circumferential contour of the long circular tooth plate, and the upper and lower portions of the long circular tooth plate Each of them is provided with a shaft body connected to the frame through two long circular tooth plates, wherein one of the shaft bodies is located outside the two long circular tooth plates, and is respectively movably connected to a driven gear through a bearing, respectively. A driving sprocket is fixed on the driven gear, and the other shaft body is movably connected to a driven sprocket at a position outside the two long circular sprocket wheels, and two driven gears and two active links on the same shaft body The wheel and the two driven sprocket are symmetrically arranged, and the driving sprocket on the same side and the driven sprocket are connected by a chain, and a set of webs are arranged along the length of each chain inside, and the webs on the two chains are symmetric. Provided that a set of boxes are arranged along the circumferential direction of the two oblong circular plates, and a movable gear is connected to both sides of the bottom of each box, two gears and two long circles on each box The teeth on the tooth plate mesh, and each side of the bottom of each box is provided The rolling device and the inner edge surface of an annular projection connected to, on the two sides of each box corresponding to the two webs of the chain is secured.

The technical feature of the present invention is that both sides of each box are fixedly connected to the two webs corresponding to the two chains by a connecting device; the connecting device comprises a limiting sleeve disposed on one side of the box, an L shape The vertical portion of the dial block passes through the limit sleeve, and the vertical portion of the L-shaped block has a clearance fit with the limit sleeve, and the horizontal portion of the L-shaped block is fixed to the web by the bolt.

Further, the technical feature of the present invention is that the rolling device is a needle bearing or a roller.

The technical feature of the present invention is that each of the sides of the box has half of the groove on both sides thereof, and each of the sides of the box is provided with a substrate, and the gear is disposed through the bearing in a cavity formed by the half groove and the substrate. The rolling device is disposed at the bottom of the substrate.

The beneficial effects of the invention are:

1. The cross section of the bottom of the groove of the cotton picking needle is curved (including the arc shape), and the top end of the cross section of the guiding key on the cotton removing sleeve is curved. The sliding fit between the cotton picking needle and the cotton removing sleeve is determined by the cotton picking needle concave. The curved groove bottom of the groove is positioned with the arc-shaped guiding key of the cotton removing sleeve, that is, the contact between the curved groove bottom on the cotton picking needle and the curved guiding key of the cotton removing sleeve is in line contact, which is favorable for positioning the cotton picking needle The axis of the cotton sleeve. In addition, the contact area of the curved groove bottom on the cotton picking needle and the curved guiding key of the cotton removing sleeve is small, which reduces the frictional resistance of the cotton picking needle and the cotton removing sleeve, and not only the axial expansion and contraction movement of the cotton picking needle It is smoother and avoids the spontaneous combustion of cotton caused by the temperature rise caused by the friction between the cotton picking needle and the cotton strip. In addition, the curved groove bottom on the cotton picking needle and the curved guiding key of the cotton removing sleeve reduce the wrapping of the cotton wool and facilitate the cotton removal.

2. A rear corner is arranged on the cotton picking tooth along the direction of rotation of the picking needle. This structural design has the following advantages: (1) In the working process, mainly relying on the rotation of the cotton picking needle, the cotton is wrapped around the cotton picking teeth, that is, mainly relying on the front corner of the cotton picking teeth to hook the cotton, picking cotton The front corners of several cotton picking teeth on the same cross section are located on the same circle centered on the axis of the cotton picking needle. When the front corner of the cotton picking tooth is hooked to the cotton, it is set at the back of the cotton picking tooth. There is a rear corner, which gives up part of the space on the cotton picking teeth, which makes it easier to hook the cotton in the front corner of the latter cotton picking, thus improving the picking efficiency of the cotton; (2) due to the cotton picking teeth The rear corner gives up part of the space on the cotton picking teeth, so that more cotton can be wound on the cotton picking teeth, which further improves the picking efficiency of the cotton.

3. Before the power feeding structure of the cotton picker is used, the two driving gears on one power input shaft mesh with the two driven gears of the present invention, and the power input shaft is driven by a motor. In use, the motor drives the two driven gears, the two drive sprocket, the two chain sprocket, the two chain sprocket and the two driven sprocket to rotate synchronously through the two input gears on the power input shaft and the power input shaft. At the same time, the corresponding webs on the two chains drive a box to move along the circumferential contour of the two oblong circular plates. That is, the two gears on each box mesh with the teeth on the two long circular tooth plates, and the two rolling devices on each box are connected to the inner edge faces of the two annular bosses on the two long circular tooth plates, and the ring shape The boss and the oblong tooth plate have the same circumferential contour, so that the box can be restrained so that the box can only move along the circumferential contour of the two oblong circular plates. When the two chains move, a set of webs spaced along the length of the two chains drives a set of boxes arranged along the circumferential direction of the two oblong circular plates along the two oblong circular plates. Circumferential contour movement. The two oblong circular plates serve as the basic members of the present invention, all of which are coupled to the periphery thereof, and lay a foundation for precise installation of other members, ensuring assembly precision, and the present invention simplifies and improves the entire technical solution. Processability.

4. Each group of the cotton picking needle assembly slides on the limit chute of a set of eccentric guide discs by rolling elements on the connecting rod, and the structure makes the plurality of picking needles have stability at the same time. In order to simplify the structure and reduce the overall weight, the number of eccentric guide discs is two under the premise of ensuring stability, and the two eccentric guide discs and the two limit chutes are symmetrically arranged. For ease of disassembly and overhaul of the rolling elements, the eccentric guide disc consists of two embossed plates. In order to ensure rigidity and strength, two embossed plates are welded.

5. Both sides of each box are fixedly connected with two webs corresponding to the two chains through a connecting device; the connecting device includes In the limit sleeve on one side of the box body, the vertical portion of an L-shaped dial block passes through the limit sleeve, the vertical portion of the L-shaped block has a clearance fit with the limit sleeve, and the horizontal portion of the L-shaped block passes the bolt Secure with the web. During operation, the chain drives the L-shaped block to move through the web, and the vertical portion of the L-shaped block blocks the limit sleeve, thereby driving the box to move along the circumferential contour of the two oblong circular plates. In this process, the L-shaped block has a linkage relationship with the limit sleeve in the moving direction, and is relatively free in other directions, thereby eliminating accumulation in other directions due to vibration of the box, gap between members, and the like. The stress makes the operation of the box smoother, more stable and reliable, and there is no sticking.

6. Each of the sides of the box has half of the groove on both sides, and each of the sides of the box is provided with a substrate, and the gear is disposed in the cavity formed by the half groove and the substrate through the bearing; the rolling device is disposed on the substrate The bottom of the substrate is disposed at the bottom of the substrate. This structural design facilitates the installation, disassembly and maintenance of gears, rolling gear, guide wheels and limit sleeves.

DRAWINGS

Figure 1 is a schematic view showing the structure of a cotton picking needle according to the present invention.

Figure 2 is a cross-sectional view taken along line A-A of Figure 1.

Fig. 3 is an enlarged cross-sectional view taken along line B-B of Fig. 1;

4 is a schematic perspective view showing the structure of the cotton picking needle of the present invention.

Figure 5 is a schematic view showing the structure of the cotton removing sleeve of the present invention.

Figure 6 is a left side view of Figure 5.

Figure 7 is a right side view of Figure 5.

Figure 8 is a cross-sectional view taken along line C-C of Figure 5;

Figure 9 is an enlarged cross-sectional view taken along line D-D of Figure 5;

Figure 10 is a perspective view showing the structure of the cotton removing sleeve of the present invention.

Figure 11 is a schematic view showing the assembly structure of the cotton picking needle and the cotton removing sleeve of the present invention.

Figure 12 is an enlarged cross-sectional view taken along line E-E of Figure 11;

Figure 13 is a partial structural view of the present invention.

Figure 14 is a cross-sectional view showing the structure taken along the line A-A in Figure 13;

Figure 15 is a schematic enlarged view of the structure at B in Figure 14.

Figure 16 is a cross-sectional view showing the structure taken along the line D-D in Figure 15;

Figure 17 is a partial structural view of the C direction in Figure 14.

Figure 18 is a partial structural view of the eccentric guide plate and the picking needle assembly of the present invention.

Figure 19 is a cross-sectional view showing the structure taken along line E-E of Figure 6;

In the figure, 1, needle body, 2, groove, 3, cotton picking teeth, 4, back angle, 5, fixed end, 6, front angle, 7, sleeve, 8, guide key, 9, first gap 10, the second gap, 11, the opening between the keys, 12, the external teeth, 13, the bearing assembly surface, 14, chamfer. 21, frame, 22, oblong tooth plate, 23, annular boss, 24, shaft body, 25, driven gear, 26, drive sprocket, 27, chain, 28, web, 29, box, 210, gear, 211, limit sleeve, 212, L-shaped block, 213, half groove, 214, substrate, 215, guide wheel, 216, needle roller Bearings, 217, eccentric guide discs, 218, limit chutes, 219, cotton picking needle assemblies, 220, bolts; 21901, cotton picking needle holders, 21902, picking needles, 21903, connecting rods, 21904, rolling elements.

detailed description

Specific embodiments of the present invention will be described below with reference to the accompanying drawings. As shown in FIG. 1 to FIG. 4, FIG. 11, and FIG. 12, the cotton picking needle of the present invention comprises a needle body 1, a set of grooves 2 on the needle body 1 parallel to the axis of the needle body, and two adjacent grooves. A set of cotton picking teeth 3 is provided between the two. The side shape of the cotton picking tooth 3 is a right triangle or an obtuse triangle, and the outer convex corner of the cotton picking tooth 3 is an acute angle. The cotton picking teeth 3 are arranged in a spiral shape along the axial direction of the needle body 1, and the inclination angle of the spiral line is 45 to 135 degrees. The cross section of the groove bottom of the groove 2 has a circular arc shape, and the center of the circular arc is disposed on the same diameter circle centered on the axis of the needle body 1. A rear corner 4 is provided on the picking tooth 3, and the rear corner 4 is 40° to 55°. A fixed end portion 5 is provided at the tail of the needle body 1.

As shown in FIG. 5 to FIG. 10, FIG. 11, and FIG. 12, the cotton removing sleeve of the present invention comprises a sleeve body 7. On the inner wall of the sleeve body 7, a set of guiding keys 8 are slidably engaged with the groove 2, and the guiding key 8 is parallel to the sleeve. The axis of the body 7 is arranged. The top end of the cross section of the guide key 8 has a circular arc shape, and the center of the circular arc is disposed on the same diameter circle centered on the axis of the casing 7. The first gap 9 between the inner wall of the casing 7 and the top of the picking tooth 3 is greater than the second gap 10 between the top of the casing guiding key 8 and the groove bottom of the groove 2. The guide key 8 extends to the outside of the top end of the sleeve 7. A chamfer 14 is provided at the extended end of the guide key 8, and the chamfer 14 is 43 to 53. The opposite ends of the extended ends of the guide keys 8 are located inside the tail end of the sleeve 7. An outer tooth 12 and a bearing fitting surface 13 are provided on the outer peripheral surface of the casing 7.

The cross section of the groove bottom of the groove of the cotton picking needle is circular arc shape, and the top end of the cross section of the guiding key 8 on the cotton removing sleeve has a circular arc shape, and the sliding fit of the cotton picking needle and the cotton removing sleeve is the circle of the groove 2 of the cotton picking needle. The arc-shaped groove bottom is positioned with the arc-shaped guide key 8 of the cotton removing sleeve, that is, the contact between the arc-shaped groove bottom on the cotton picking needle and the circular arc-shaped guiding key 8 of the cotton removing sleeve is in line contact, which is beneficial to the cotton picking The needle is positioned at the axis of the cotton strip. In addition, the contact area of the arc-shaped groove bottom on the cotton picking needle and the circular arc-shaped guide key 8 of the cotton removing sleeve is small, which reduces the frictional resistance of the cotton picking needle and the cotton removing sleeve, and not only the shaft of the cotton picking needle The movement to the telescopic movement is smoother, and the self-ignition of the cotton caused by the temperature rise caused by the friction between the cotton picking needle and the cotton removing sleeve is also avoided. In addition, the circular arc-shaped groove bottom on the cotton picking needle and the circular arc-shaped guide key 8 of the cotton removing sleeve reduce the wrapping of the cotton wool, which is advantageous for cotton removal.

The cross section of the groove bottom of the groove 2 of the cotton picking needle has a circular arc shape, and the center of the arc is disposed on the same diameter circle centered on the axis of the needle body 1; the top end of the cross section of the guide key 8 on the cotton removing sleeve has a circular arc shape. The center of the arc is set on the same diameter circle centered on the axis of the sleeve body 7, which is more advantageous for positioning the cotton picking needle on the axis of the cotton strip, thereby avoiding the inner wall of the cotton strip and the cotton picking teeth 3 on the cotton picking needle. Wear and tear, extending the life of the picking needle.

The first gap 9 between the inner wall of the sleeve and the top of the picking tooth 3 is larger than the second gap 10 between the top of the sleeve 7 guiding key 8 and the bottom of the groove 2, further avoiding the inner wall of the cotton removing sleeve on the cotton picking needle The wear of the cotton picking teeth 3 prolongs the service life of the picking needle.

A rear corner 4 is provided on the cotton picking tooth 3 along the direction of rotation of the picking needle. This structural design has the following advantages: (1) During the working process, mainly relying on the rotation of the cotton picking needle, the cotton is wrapped around the cotton picking teeth 3, that is, mainly relying on the front corner 6 of the cotton picking tooth 3 to hook the cotton, and the picking needle has several picking on the same cross section. The front corners 6 of the cotton teeth 3 are all located on the same circle centered on the axis of the cotton picking needle. When the front corner 6 of the cotton picking tooth 3 is hooked to the cotton, the rear corner 4 is provided at the rear of the picking teeth 3. , giving up part of the space on the cotton picking teeth 3, it is easier to hook the cotton at the front corner 6 of the latter picking tooth 3, thereby improving the picking efficiency of the cotton; (2) being set on the picking teeth 3 There is a rear corner 4, which gives up part of the space on the cotton picking teeth, so that more cotton can be wound on the cotton picking teeth 3, which further improves the picking efficiency of the cotton.

As shown in Fig. 3, the angle α of the relief angle 4 is 40° to 55°. If the back angle 4 is too small, the beneficial effect will be reduced. When the back angle 4 is too large, it will cut into the arc-shaped groove bottom of the groove of the cotton picking needle, thereby affecting the positioning and sliding of the cotton picking needle and the cotton removing sleeve. Cooperate.

The guide key 8 extends to the outside of the top end of the sleeve 7. In the prior art, when the cotton picking needle is retracted and the cotton removing sleeve is detached from the cotton wrapped around the cotton picking needle, the gap between the inner wall of the cotton removing sleeve and the picking tooth 3 is easily entangled on the cotton picking tooth 3. The cotton is drawn into the cotton-removing sleeve and has the following disadvantages: (1) the cotton is pulled into the cotton-removing sleeve, and the cotton-removing sleeve is compacted by the cotton wrapped around the cotton-picking tooth 3, which is difficult to remove the cotton; (2) the cotton is pulled in and out In the cotton sleeve, it is easy to make the cotton removing sleeve stuck, and even when the cotton picking needle is broken, (3) the cotton is pulled into the cotton removing sleeve, the cotton removing sleeve is compacted by the cotton wrapped around the cotton picking tooth 3, and the cotton removing sleeve and the cotton are added. The friction generated by the friction is not easily dissipated, and the temperature rise due to friction causes the cotton to spontaneously ignite. The invention adopts the above structure and has the following advantages: (1) reducing the probability that the gap between the inner wall of the cotton removing sleeve and the cotton picking tooth 3 pulls the cotton into the cotton removing sleeve, so that the cotton removal is smoother and the cotton detachment is more clean; 2) The cotton entangled on the cotton picking teeth 3 is reduced to avoid the jamming of the cotton quilting sleeve; (3) the cotton is pulled into the cotton quilting sleeve by reducing the gap between the inner wall of the cotton removing sleeve and the cotton picking tooth 3 The probability of the inside reduces the friction between the cotton quilt and the cotton, and the heat generated by the friction is easily dissipated, thereby avoiding the spontaneous combustion of the cotton caused by the temperature rise caused by the friction.

A chamfer 14 is provided at the extended end of the guide key 8. When the cotton is detached, the structural design keeps the cotton entangled on the picking teeth 3 fluffy, thereby making the detachment of the cotton easier, and the cotton detachment is more thorough and clean. The chamfer 14 is preferably 43° to 53°, which facilitates the detachment of cotton.

The opposite ends of the extended ends of the guide keys 8 are located inside the tail end of the sleeve 7. Under the premise of ensuring the guiding and positioning function of the guiding key 8, the length of the guiding key 8 can be shortened, and the structural design has the following points: (1) is advantageous for ensuring the processing precision of the guiding key 8; (2) is beneficial for reducing the cotton picking The friction between the needle and the cotton strip; (3) helps to reduce the overall weight.

External teeth 12 are provided on the outer peripheral surface of the casing 7. Through the cooperation of the gear pair on the box and the external teeth 12, the cotton removing sleeve drives the cotton picking needle to rotate, so that the cotton is wound on the cotton picking needle, thereby completing the picking of the cotton. The outer teeth 12 are disposed on the sleeve body 7, which improves the strength and reliability of the cotton strip.

A bearing fitting surface 13 is provided on the outer peripheral surface of the casing 7. The bearing is assembled on the cotton removal sleeve so that the cotton removal sleeve can be rotated.

The side shape of the cotton picking tooth 3 is a right triangle or an obtuse triangle, and the outer convex corner of the cotton picking tooth 3 is an acute angle. Right angle A triangular or obtuse triangle is advantageous for ensuring the strength of the cotton picking teeth 3, and the sharp angle increases the probability of the cotton picking teeth 3 being entangled with cotton.

The cotton picking teeth 3 are arranged in a spiral shape along the axial direction of the needle body 1, and the inclination angle of the spiral line is 45 to 135 degrees. This structural design is advantageous for processing, maintaining the overall rigidity of the cotton picking teeth 3 and making the cotton removal smoother.

A fixed end portion 5 is provided at the tail of the needle body 1. The fixed end portion 5 of the needle body 1 is movably connected to the needle body through a bearing, so that the needle body 1 can be rotated.

The invention also discloses a force-giving structure of a cotton picker, comprising a frame 21, on the left and right sides of the frame 21, two symmetrically arranged oblong tooth plates 22 are arranged on the two long circular tooth plates 22 The outer side faces are respectively provided with a ring-shaped boss 23 which is symmetrically arranged in the same circumferential contour as the oblong tooth plate 22. A shaft body 4 connected to the frame 21 passing through the two oblong circular tooth plates 22 is disposed on the upper and lower portions of the oblong tooth plate 22, wherein one of the shaft bodies 24 is located outside the two long circular tooth plates 22. The positions are respectively movably connected to a driven gear 25 through a bearing, and a driving sprocket 26 is fixed on each of the driven gears 25, and the other shaft body 24 is located outside the two long circular tooth plates 22 at a position The driven sprocket is movably connected, the two driven gears 25 on the same shaft body 24, the two driving sprocket 26 and the two driven sprocket wheels are symmetrically arranged, and the driving sprocket 26 and the driven sprocket on the same side pass the chain 27 Connected. A plurality of webs 28 are circumferentially spaced along the length of each of the chains 27, and the webs 28 on the two chains 27 are symmetrically disposed. A set of boxes 29 are disposed on the two oblong circular plates 22 along the circumferential direction thereof. Each of the bottoms of the boxes 29 is provided with a half recess 213 on both sides of the bottom, and each of the boxes 29 is provided with a substrate on both sides thereof. 214, the gear 210 is disposed in a cavity formed by the half groove 213 and the substrate 214 through a bearing, and the two gears 210 on each of the casings 29 mesh with the teeth on the two oblong circular plates 22. The bottom of the base plate 214 on each side of each of the casings 29 is provided with a rolling device connected to the inner peripheral surface of the annular boss 23, and the rolling device is a needle bearing 216 or a roller. Both sides of each of the casings 29 are fixed to the two webs 28 corresponding to the two chains 27 by a connecting means. The connecting device includes a limiting sleeve 211 disposed on one side of the box body 29, and a vertical portion of an L-shaped dial block 212 passes through the limiting sleeve 211. The vertical portion of the L-shaped dial block 212 is in a clearance fit with the limiting sleeve 211. The horizontal portion of the L-shaped block 212 is fixed to the web 28 by bolts 220. A lower portion of each of the base plates 214 is provided with a guide wheel 215 connected to the outer peripheral surface of the annular boss 23. The guide wheel 215 is disposed on the front side of the needle bearing 216 in the direction of rotation of the chain 27.

Two eccentric guide discs 217 are disposed on the frame 21 below the box 29 between the two oblong circular plates 22, and a limit chute 218 is disposed on each of the eccentric guide discs 217 along the circumferential contour thereof. The two eccentric guide discs 217 and the two limit chutes 218 are symmetrically disposed, and a set of the cotton picking needle assemblies 219 are disposed in each of the limit chutes 218. The eccentric guide disk 217 is composed of two embossed plates. Each of the cotton picking needle assemblies 219 includes a cotton picking needle holder 21901. Six picking needles 21902 are disposed along the length of the cotton picking needle holder 21901. The free ends of each of the cotton picking needles 21902 pass through the bearing and the cotton picking. The needle holder 21901 is movably connected, and two connecting rods 21903 are arranged at the bottom of the cotton picking needle holder 21901. One end of each connecting rod 21903 is fixedly connected with the cotton picking needle holder 21901, and the other end of each connecting rod 21903 is provided with a ball socket. A rolling body 21904 is disposed in the ball socket in the upper limit chute 218 of the eccentric guide disk 217. The rolling elements 21904 are steel balls.

Before use, the two driving gears on a power input shaft mesh with the two driven gears 25 of the present invention, and the power input shaft is composed of A motor drive. In use, the motor drives the two driven gears 25, the two driving sprockets 26, the two chain links 27, and the two driven sprockets to rotate synchronously through the two driving gears on the power input shaft and the power input shaft. At the same time, the corresponding webs 28 on the two chains 27 drive a box 29 along the circumferential contour of the two oblong circular plates 2. That is, the two gears 210 on each of the casings 29 mesh with the teeth on the two oblong circular plates 22, the two rolling devices on each of the casings 29 and the two annular bosses 23 on the two oblong circular plates 22 The inner rim faces are connected, and the annular boss 23 has the same circumferential contour as the oblong tooth plate 22, so that the casing 29 can be restrained so that the casing 29 can only follow the circumferential contour of the two oblong circular plates 22. motion. When the two chains 27 are moved, a set of webs 28 spaced apart along the length of the two chains 27 drive a set of boxes 29 spaced along the circumference of the two oblong circular plates 22 along the two lengths. The circumferential profile of the circular toothed plate 22 moves. The two oblong circular plates 22 serve as the basic members of the present invention, all of which are coupled to the periphery thereof, and lay the foundation for precise mounting of other members, ensuring assembly precision, and the present invention simplifies the entire technical solution. Improve processing technology.

Since two eccentric guide discs 217 are spaced apart between the two oblong circular plates 22 and the frame 21 below the casing 29, a limit chute is provided on each of the eccentric guide discs 217 along its circumferential contour. 218, a set of cotton picking needle assemblies 219 are disposed in each of the limiting chutes 218; each of the cotton picking needle assemblies 219 includes a cotton picking needle holder 21901, and a length is arranged along the length of the cotton picking needle holder 21901. The group of cotton picking needles 21902, the free end of each picking needle 21902 is movably connected to the cotton picking needle holder 21901 through a bearing, and a set of connecting rods 21903 are arranged at the bottom of the picking needle holder 21901, one end of each connecting rod 21903 is The cotton picking needle holder 21901 is fixedly connected, and the other end of each connecting rod 21903 is provided with a ball socket, and a rolling body 21904 located in the upper limit sliding groove 218 of the eccentric guiding disc 217 is disposed in the ball socket. The box body 29 is disposed in one-to-one correspondence with the yarn picking needle assembly 219. Each of the box bodies 29 is provided with a cotton-removing sleeve corresponding to each of the positions of the cotton-removing needles 21902. Each of the gears 210 is connected to the movable gear 210. One of the gears 210 is connected to the outer gears of the plurality of cotton removing sleeves on one side of the casing 29 through the bevel gear pair, and the other gear 210 is located in the casing 29 through the bevel gear pair. The outer gears on the remaining cotton strips on one side are connected. Thus, as each of the casings 29 moves along the circumferential contour of the two oblong circular plates 22, a set of depilling sleeves within each of the casings 29 carries a picking needle assembly 219 along the two eccentric guide disks 217. The upper limit chutes 218 slide, and since the eccentric guide discs 219 are eccentrically arranged, the picking needles 21902 perform axial telescopic movement while performing linear displacement; at the same time, two sides of the bottom of each box 29 are The gear 210 rotates a set of cotton removing sleeves in the box through the gear pair, so that the cotton removing sleeve drives the cotton picking needle 21902 to rotate, so that the cotton is wound on the cotton picking needle, thereby completing the picking of the cotton.

During the working process of the cotton picker, whether the movement of the box 29 is stable is related to whether the mechanism in the box 29 is running smoothly. In order to make the movement of the box 29 smooth, the force points at both ends of the box 29 are synchronized and balanced, so the two driving gears, the two driven gears 25, the two driving sprockets 26, the two chains 27, and the two driven sprockets The tooth profiles on the two oblong circular plates 22 and the oblong circular plates 22, the two annular bosses 23 on the two oblong circular plates 22, and the two sets of webs 28 on the two chains 27 are symmetrically disposed.

Two sides of each box 29 are fixedly connected to the two webs 28 corresponding to the two chains 27 by a connecting device; The limiting sleeve 211 is disposed on one side of the box body 29, and the vertical portion of the L-shaped dial block 212 passes through the limiting sleeve 211. The vertical portion of the L-shaped dial block 212 and the limiting sleeve 211 are clearance fit, L The horizontal portion of the dial block 212 is secured to the web 28 by bolts 220. In operation, the chain 27 drives the L-shaped block 212 to move through the web 28, and the vertical portion of the L-shaped block 212 pushes the limiting sleeve 211, thereby driving the box 29 along the circumference of the two oblong circular plates 22. Move toward the contour. In this process, the L-shaped block 212 has a linkage relationship with the limiting sleeve 211 in the moving direction, and is relatively free in other directions, thereby eliminating the vibration due to the housing 29, the gap between the members, and the like. The stress accumulated in the direction makes the operation of the casing 29 smoother, more stable and reliable, and there is no sticking phenomenon.

In order to facilitate the installation, disassembly and maintenance of the L-shaped block 212, the limiting sleeve 211 may be composed of two members or a plurality of members.

The two gears 210 on each of the casings 29 mesh with the teeth on the two oblong circular plates 22, and the two rolling devices on each of the casings 29 and the two annular bosses 2 on the two oblong circular plates 22 The rim faces are connected, and the annular boss 23 has the same circumferential contour as the oblong tooth plate 22, so that the casing 29 can be restrained so that the casing 29 can only move along the circumferential contour of the two oblong circular plates 22. . However, in actual use, due to machining errors and the like, the box 29 cannot be truly engaged according to the center distance of the oblong tooth plate 22, so that when the box 29 is in operation, the box 29 vibrates and the cabinet cannot be made. 29 smooth operation. In order to solve this technical problem, a guide wheel 215 connected to the outer peripheral surface of the annular boss 23 is provided on both sides of the lower portion of each of the casings 29. In the direction of rotation of the chain 27, the guide wheel 215 is disposed on the front side of the rolling device. . This structural design can further limit the gap between the case 29 and the teeth on the oblong tooth plate 22, so that the case 29 is engaged as much as possible along the center distance of the oblong tooth plate 22, thereby reducing the occurrence of the operation of the case 29. Vibration causes the operation of the casing 29 to be smoother.

Each of the two sides of the box body 29 is provided with a half groove 213 on each side of the bottom of each box 29, and a gear plate 210 is disposed on both sides of each box body 29 through a bearing in a cavity formed by the half groove 213 and the substrate 214; The rolling device is disposed at the bottom of the substrate 214; the guide roller 215 is disposed at a lower portion of the substrate 214. This structural design facilitates the mounting, dismounting, and overhaul of the gear 210, the rolling device, the guide pulley 215, and the limit sleeve 211.

Each set of the picking needle assembly 219 slides over the limit chutes 218 of the set of eccentric guide discs 217 by rolling elements 21904 on the connecting rods 21903. This configuration provides stability to the simultaneous telescoping of the plurality of picking needles 21902. In order to simplify the structure and reduce the overall weight, the number of the eccentric guide discs 217 is two, and the two eccentric guide discs 217 and the two limit chutes 218 are symmetrically disposed. The eccentric guide disk 217 is composed of two embossed plates for ease of disassembly and inspection of the rolling elements. In order to ensure rigidity and strength, two embossed plates are welded.

In order to reduce the overall weight, the shaft body 24 is hollowed out under the premise of ensuring rigidity and strength.

Claims

A cotton picking needle comprises a needle body (1), a set of grooves (2) on the needle body (1) parallel to the axis of the needle body, and a set of picks between each adjacent two grooves (2) The cotton tooth (3) is characterized in that the groove bottom of the groove (2) has a curved cross section.
A cotton picking needle according to claim 1, characterized in that a rear corner (4) is provided on the picking teeth (3).
A cotton removing sleeve for use with the cotton picking needle according to claim 1, comprising a sleeve body (7), characterized in that a set of guides slidingly engaged with the groove (2) is arranged on the inner wall of the sleeve body (7). The key (8), the guide key (8) is arranged parallel to the axis of the sleeve (7), and the top end of the cross section of the guide key (8) is curved.
The cotton quilting sleeve according to claim 3, characterized in that the top end of the cross section of the guide key (8) has a circular arc shape, and the center of the circular arc is disposed at a center of the axis of the sleeve (7) On the same diameter circle.
A cotton removing sleeve according to claim 3, characterized in that the first gap (9) between the inner wall of the casing (7) and the top of the cotton picking tooth (3) is larger than the top of the casing guiding key (8) A second gap (10) between the groove bottom of the groove (2).
A feeding structure of a cotton picker, comprising a frame, characterized in that: two symmetrically arranged oblong tooth plates are arranged on the left and right sides of the frame, between the two long circular tooth plates and below the box body An eccentric guide disc is arranged on the frame, and a limit chute is arranged along the circumferential contour of each eccentric guide disc. The eccentric guide disc and the limit chute are symmetrically arranged at each limit chute. The inner spacing is provided with a set of cotton picking needle assemblies; each of the cotton picking needle assemblies comprises a cotton picking needle holder, and a set of cotton picking needles according to claim 1 is arranged along the length direction of the cotton picking needle holder, each picking The free end of the cotton needle is movably connected to the cotton picking needle holder through a bearing, and a set of connecting rods are arranged at the bottom of the cotton picking needle holder, and one end of each connecting rod is fixedly connected with the cotton picking needle holder, and the other end of each connecting rod The ball socket is provided, and a rolling body located in the upper slot of the eccentric guiding plate is arranged in the ball socket, and a cotton removing sleeve is also arranged on the cotton picking needle.
The force-increasing structure of the cotton picker according to claim 6, wherein the outer side surfaces of the two oblong circular tooth plates are respectively provided with a symmetrically arranged annular boss which has the same circumferential contour as the long circular tooth plate. In the upper part and the lower part of the oblong tooth plate, a shaft body connected to the frame passing through the two long circular tooth plates is disposed, wherein one of the shaft bodies is located outside the two long circular tooth plates through bearings and respectively A driven gear is movably connected, and a driving sprocket is fixed on each driven gear, and the other shaft body is movably connected to a driven sprocket at a position outside the two long circular sprocket, and is located on the same shaft body. The upper two driven gears, the two driving sprocket and the two driven sprocket are symmetrically arranged, and the driving sprocket on the same side and the driven sprocket are connected by a chain, and a group is arranged along the length of each side of each chain. a web, the webs on the two chains are symmetrically arranged, and a set of boxes are arranged along the circumferential direction of the two oblong circular plates, and each of the bottoms of each box is provided with a gear connected thereto, each box The two gears on the body are in contact with the teeth on the two oblong circular plates And a rolling device connected to the inner edge surface of the annular boss is arranged on both sides of the bottom of each box, and the two sides of each box are fixedly connected with the corresponding two webs on the two chains.
A force feeding structure for a cotton picker according to claim 6, wherein each side of the box passes through a connection The connecting device is fixedly connected to the two webs corresponding to the two chains; the connecting device comprises a limiting sleeve disposed on one side of the box body, the vertical portion of an L-shaped dial block passes through the limiting sleeve, and the vertical direction of the L-shaped dial block The straight portion and the limit sleeve are gap-fitted, and the horizontal portion of the L-shaped dial block is fixed to the web by bolts.
A force feeding structure for a cotton picker according to claim 6, wherein the rolling device is a needle bearing or a roller.
The force feeding structure of a cotton picker according to claim 6, wherein each of the bottoms of the box body is provided with a half groove, and each side of the box body is provided with a substrate, and the gear passes through the bearing Provided in a cavity formed by a half groove and a substrate; the rolling device is disposed at the bottom of the substrate.