CN115196285B

CN115196285B - Shaftless screw conveyor

Info

Publication number: CN115196285B
Application number: CN202210793523.0A
Authority: CN
Inventors: 戴路; 王斌
Original assignee: Anhui Baolyu Optoelectronic Engineering Co ltd
Current assignee: Anhui Baolyu Optoelectronic Engineering Co ltd
Priority date: 2022-07-07
Filing date: 2022-07-07
Publication date: 2023-05-16
Anticipated expiration: 2042-07-07
Also published as: CN115196285A

Abstract

The invention discloses a shaftless spiral conveying device which comprises a U-shaped conveying groove, spiral blades, a discharge hole, a cover plate and a feed inlet, wherein a support rod fixedly connected with the spiral blades is arranged on one side of the discharge hole away from the feed inlet, the support rod penetrates through one side of the U-shaped conveying groove, a connecting bin is fixedly arranged on the outer surface wall of the U-shaped conveying groove, and a first gear and a second gear which are in meshed connection are arranged on the top of the connecting bin through a support component. In this application, the ejector pin then can strike the laminating board, the laminating board can carry out the horizontal displacement of appointed stroke and extension spring one to push away the material of this region adhesion at U type inslot table wall, the shake of laminating board memory high frequency can be made in the quick striking simultaneously, can break away from the material of adhesion at laminating board extexine wall, so realized the support of spiral leaf, can carry out the high-efficient clearance to the material of crossing the discharge gate and being located U type groove again, thereby improved shaftless screw conveyor's result of use.

Description

Shaftless screw conveyor

Technical Field

The invention relates to the technical field of shaftless spiral conveying, in particular to a shaftless spiral conveying device.

Background

Compared with the traditional screw conveyor with a shaft, the screw conveyor without a shaft has the advantages of strong winding resistance due to the adoption of a design without a central shaft and the utilization of an integral steel screw pushing material with certain flexibility, and is suitable for the treatment of grid residues of urban sewage treatment plants, residential district sewage pretreatment devices, municipal rainwater, sewage pump stations, running water plants and the like, and is mainly matched with equipment such as grids or dehydrators to convey the grid residues or dehydrated sludge;

the existing shaftless spiral conveying device mainly comprises a frame, a spiral blade, a U-shaped conveying groove, a cover plate and a driving piece, wherein one side of the spiral blade is fixed on a shaft rod at the output end of the driving piece, materials are input through a feed inlet, the driving piece drives the spiral blade to rotate, and the spiral blade pushes the materials to move until the materials are discharged through a discharge outlet;

in the use process of the existing shaftless spiral conveying, after the spiral blades push materials to the discharge hole, most of the materials directly fall down through self gravity, but some materials with viscosity are continuously adsorbed on the spiral blades and are accumulated on the inner surface wall of the U-shaped conveying groove outside the free end of the spiral rod after passing through the discharge hole, the free ends of the blades are lifted up along with the increase of the accumulation height while being difficult to treat, the friction between the blades and a shell is increased after the whole blade axis is bent, so that the power consumption is larger, the abrasion of a driving bearing is increased, the whole machine is caused to be failed, and the use effect of the shaftless spiral conveying device is reduced.

Disclosure of Invention

The invention aims at: in order to solve the above problems, a shaftless screw conveyor is proposed.

In order to achieve the above purpose, the present invention adopts the following technical scheme:

the utility model provides a shaftless spiral conveyor, including U type conveyer trough, the spiral leaf, the discharge gate, apron and feed inlet, one side that the discharge gate kept away from the feed inlet is provided with the bracing piece with spiral leaf fixed connection, the bracing piece wears to establish in one side of U type conveyer trough, U type conveyer trough extexine wall fixed mounting has the joint chamber, the joint chamber top is provided with meshing connection's gear I and gear II through supporting component, gear I and bracing piece fixed connection, gear II passes through member fixedly connected with carousel, table wall fixed mounting has the fixing base in the vertical end of joint chamber, table wall sliding connection has slider I and slider II in the fixing base, be provided with the promotion subassembly that is used for slider one horizontal reciprocating motion between slider I and the carousel front end face, slider bottom fixed mounting has the lug II, slider II top is through elastic component elastic connection wedge, wedge front end face fixed mounting has lug I, table wall fixed mounting has stopper, mount pad and cooperation piece, elastic connection has spring II between mount pad and the slider II, table wall has the laminating board through spring I and bracing piece sliding fit's in the vertical end of U type conveyer trough, one side table wall, one side of keeping away from the firm joint of slider and slider II.

Preferably, the top of the cover plate is provided with a stepped groove, the inner surface wall of the stepped groove is connected with a bottom plate and a plurality of groups of sealing plates in a clamping manner, the length of the stepped groove is equal to the sum of the lengths of the bottom plate and the plurality of groups of sealing plates, the bottom plate is fixedly connected with the feed inlet, and the bottom plate is fixedly connected with the cover plate through a locking rod.

Preferably, the horizontal two sides of the U-shaped conveying groove are fixedly connected with the side frames and the frame, the cover plate is fixed at the top of the U-shaped conveying groove, the driving piece is fixedly arranged on the inner surface wall of the frame, and the output end of the driving piece is fixedly connected with the spiral blade.

Preferably, the support assembly comprises a support, the top of the support is fixedly connected with the inner surface wall of the top of the connecting bin through a vertical rod, clamping sleeves are fixedly installed at two ends of the support, and the two groups of clamping sleeves are respectively sleeved on the outer surface walls of the support rod and the rod piece.

Preferably, a first sliding groove and a second sliding groove which are vertically distributed are formed in the inner surface wall of the fixing seat, the first sliding groove and the second sliding groove are respectively in sliding fit with the first sliding block and the second sliding block, two sides of the vertical end of the first sliding groove and two sides of the vertical end of the second sliding groove are respectively communicated with side grooves, limiting sliding pieces are fixedly mounted on two sides of the vertical end of the first sliding block and two sides of the second sliding block, and the limiting sliding pieces are in sliding connection with the side grooves.

Preferably, the inner surface wall of the vertical end of the U-shaped conveying groove is provided with a dislocation groove, the spring I is elastically connected between the inner surface wall of the dislocation groove and the outer surface wall of the attaching plate, and the outer surface wall of the vertical end of the attaching plate is attached to the inner surface wall of the vertical end of the U-shaped conveying groove.

Preferably, the elastic cushion layer is wrapped on one side of the attaching plate close to the first spring and one side of the ejector rod far away from the second slider.

Preferably, the pushing assembly comprises two groups of pin rods which are respectively and fixedly arranged on the front end surfaces of the turntable and the sliding block, and the outer surface walls of the two groups of pin rods are simultaneously sleeved with connecting rods.

Preferably, the bottom of the cover plate is fixedly provided with a protrusion with a rectangular structure, the top of the U-shaped conveying groove is provided with a groove, and the protrusion is in transition fit with the groove.

Preferably, at least three groups of dislocation grooves and the first spring are distributed in a U shape.

In summary, due to the adoption of the technical scheme, the beneficial effects of the invention are as follows:

1. in this application, table wall fixed stay pole in the free end of spiral leaf, the bracing piece passes the discharge gate and wears to establish in one side of U type conveyer trough, thereby neither hinder the holistic shaftless of device and carry, can support the free end of spiral leaf again, avoid it to appear the axis skew, simultaneously the bracing piece can drive gear one and carry out axial rotation along with spiral leaf, gear one then drives the carousel through the meshing with gear two and carries out clockwise rotation, the carousel can make the connecting rod between with slider one take place morphological adjustment at pivoted in-process, the connecting rod can drive slider one and carry out horizontal direction's reciprocating motion at the interior table wall of spout one at the continuous pivoted in-process of carousel, the concrete process is: the first sliding block moves to the second sliding block along the sliding groove, in the process, the inclined surface of the second sliding block contacts the second sliding block, the second sliding block is restrained by the limiting block, the second sliding block slides to the second sliding block and compresses the elastic piece in the second sliding block until the first sliding block reaches the leftmost position of the sliding groove, the second sliding block passes over the first sliding block, the first sliding block slides rightwards along the first sliding groove, the second sliding block contacts the vertical edge of the second sliding block, the second sliding block drives the first sliding block and the ejector rod to synchronously move rightwards and compress the second sliding block until the inclined surface of the second sliding block contacts the inclined surface of the matching piece, at the moment, the first sliding block continuously moves with the second sliding block, the second sliding block is contracted again to enter the second sliding block, then the second sliding block is restrained by the second sliding block, the second sliding block rapidly rebounds under the action of the second sliding block, the ejector rod collides the matching plate, the matching plate horizontally moves in a designated stroke and stretches the first sliding block to push the material attached to the surface wall in the U-shaped groove, and simultaneously rapidly collides the matching plate to mark high-frequency shaking, the material attached to the outer surface wall of the matching plate can be separated from the matching plate, and the material can be effectively cleaned by the spiral shaft beyond the spiral shaft.

2. In this application, the length in step groove just is the sum of the length of bottom plate and multiunit shrouding, during the use, combine bottom plate and multiunit shrouding and step groove, the rethread dead lever accomplishes the fixed with the apron to this installation that realizes the feed inlet, can guarantee the gas tightness at apron top again, follow-up can loosen the dead lever between bottom plate and the shrouding of assigned position and the apron, at the position exchange with bottom plate and shrouding, accomplish the location through the dead lever at last, with this position control that realizes the feed inlet, make the feed inlet can carry out position adjustment according to the user demand, thereby improved shaftless screw conveyor's application scope.

Drawings

FIG. 1 shows a schematic overall structure provided in accordance with an embodiment of the present invention;

fig. 2 shows a schematic structural view of a spiral blade and a support rod according to an embodiment of the present invention;

fig. 3 shows a schematic structural view of a cover plate provided according to an embodiment of the present invention;

fig. 4 is a schematic structural view of a support bar and a bonding board according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of a first spring and a dislocation groove according to an embodiment of the present invention;

fig. 6 shows a schematic diagram of the internal structure of a connection bin according to an embodiment of the invention;

fig. 7 shows a schematic structural diagram of a fixing base according to an embodiment of the present invention.

Legend description:

1. a side frame; 2. a frame; 3. a discharge port; 4. a U-shaped conveying groove; 5. a cover plate; 6. a feed inlet; 7. a driving member; 8. a sealing plate; 9. a connecting bin; 10. spiral leaves; 11. a support rod; 12. bonding plates; 13. a bottom plate; 14. a groove; 15. a first spring; 16. a push rod; 17. a first gear; 18. a cutting sleeve; 19. a second gear; 20. a bracket; 21. a turntable; 22. a connecting rod; 23. a fixing seat; 24. a first sliding block; 25. a second slide block; 26. a second chute; 27. a first chute; 28. a side groove; 29. wedge blocks; 30. a first bump; 31. a second spring; 32. a second bump; 33. a mating piece; 34. a limiting block; 35. a mounting base; 36. a vertical rod; 37. a stepped groove; 38. a pin rod; 39. a locking lever; 40. dislocation groove.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Referring to fig. 1-7, the present invention provides a technical solution:

the shaftless spiral conveying device comprises a U-shaped conveying groove 4, a spiral blade 10, a discharge hole 3, a cover plate 5 and a feed hole 6, wherein a support rod 11 fixedly connected with the spiral blade 10 is arranged on one side of the discharge hole 3 far away from the feed hole 6, the support rod 11 penetrates through one side of the U-shaped conveying groove 4, the support rod 11 is fixed on the surface wall in the free end of the spiral blade 10, and the support rod 11 is positioned on one side of the discharge hole 3 and penetrates through the U-shaped conveying groove 4, so that the whole shaftless conveying of the device is not hindered, the free end of the spiral blade 10 can be supported, and the axial deviation of the free end of the spiral blade 10 is avoided;

the outer surface wall of the U-shaped conveying groove 4 is fixedly provided with a connecting bin 9, the top of the connecting bin 9 is provided with a first gear 17 and a second gear 19 which are in meshed connection through a supporting component, the first gear 17 is fixedly connected with a supporting rod 11, the second gear 19 is fixedly connected with a rotary table 21 through a rod piece, the inner surface wall of the vertical end of the connecting bin 9 is fixedly provided with a fixed seat 23, the inner surface wall of the fixed seat 23 is slidingly connected with a first sliding block 24 and a second sliding block 25, a pushing component for horizontally reciprocating movement of the first sliding block 24 is arranged between the first sliding block 24 and the front end surface of the rotary table 21, the pushing component comprises two groups of pin rods 38 which are respectively fixedly arranged on the front end surfaces of the rotary table 21 and the first sliding block 24, and the outer surface walls of the two groups of pin rods 38 are simultaneously sleeved with connecting rods 22;

the support rod 11 drives the first gear 17 to axially rotate along with the spiral blade 10, the first gear 17 drives the rotary table 21 to rotate clockwise through meshing with the second gear 19, the rotary table 21 can enable the connecting rod 22 between the first slide block 24 to conduct form adjustment in the rotating process, and the connecting rod 22 can drive the first slide block 24 to conduct horizontal reciprocating motion in the inner surface wall of the first slide groove 27 in the continuous rotating process of the rotary table 21;

it should be noted that, the connecting rod 22 and the pin 38 are a set of schemes for realizing the horizontal reciprocating motion of the first slider 24;

the bottom of the first sliding block 24 is fixedly provided with a second protruding block 32, the top of the second sliding block 25 is elastically connected with a wedge-shaped block 29 through an elastic piece, the front end face of the wedge-shaped block 29 is fixedly provided with a first protruding block 30, the inner surface wall of the fixed seat 23 is fixedly provided with a limiting block 34, an installation seat 35 and a matching piece 33, the limiting block 34 is abutted against the second sliding block 25, a second spring 31 is elastically connected between the installation seat 35 and the second sliding block 25, the inner surface wall of the vertical end of the U-shaped conveying groove 4 is elastically connected with a bonding plate 12 which is in sliding fit with the supporting rod 11 through a first spring 15, and one side of the second sliding block 25 away from the second spring 31 is fixedly provided with a push rod 16 abutted against the bonding plate 12;

the specific process of the reciprocating motion of the first slide block 24 is as follows: the first slide block 24 moves to the second slide block 25 along the first slide groove 27, in the process, the second slide block 32 contacts with the inclined surface of the wedge block 29, the second slide block 25 is restrained by the limiting block 34, the first slide block 29 slides to the second slide block 25 and compresses the elastic piece in the second slide block until the first slide block 24 reaches the leftmost position of the first slide groove 27, the second slide block 32 passes over the wedge block 29, the action of the carbon elastic piece of the wedge block 29 resets, the first slide block 24 slides rightward along the first slide groove 27, the second slide block 32 contacts with the vertical edge of the wedge block 29, the second slide block 32 drives the second slide block 25 and the ejector rod 16 to synchronously move rightward and compress the second spring 31 until the first slide block 30 at the top of the wedge block 29 contacts with the inclined surface of the matched piece 33, at the moment, the first slide block 24 continuously moves with the second slide block 32, the second slide block 29 is contracted again to the second slide block 25, then the second slide block 29 loses the restraint of the second slide block 32, the second slide block 25 is quickly reset under the action of the second spring 31, the ejector rod 16 is quickly reset, the bonding plate 12 is impacted, the bonding plate 12 is horizontally displaced by a specified stroke, the first slide plate 12 is pulled and the first slide block is separated from the first slide block 27, the U-shaped material is separated from the spiral plate 12 by the spiral plate 12, the spiral plate 4 is simultaneously, the spiral plate 4 is separated from the spiral plate 12, and the spiral plate is simultaneously, the spiral plate is separated from the spiral plate 12, and the spiral plate is adhered to the spiral plate surface of the spiral plate 12, and the spiral plate is adhered to the spiral plate, the spiral plate surface of a material is adhered to the spiral plate, and the surface, and the material is adhered to the surface, and the material on the surface, and the surface of a high-free from the surface, and the material is well.

Specifically, as shown in fig. 1 and 3, a stepped groove 37 is formed in the top of the cover plate 5, the bottom plate 13 and a plurality of groups of sealing plates 8 are connected in a clamping manner on the inner surface wall of the stepped groove 37, the length of the stepped groove 37 is equal to the sum of the lengths of the bottom plate 13 and the plurality of groups of sealing plates 8, the bottom plate 13 is fixedly connected with the feed inlet 6, and the bottom plate 13 and the plurality of groups of sealing plates 8 are fixedly connected with the cover plate 5 through locking rods 39;

the length of the step groove 37 is just the sum of the lengths of the bottom plate 13 and the plurality of groups of sealing plates 8, when the screw conveyer is used, the bottom plate 13, the plurality of groups of sealing plates 8 and the step groove 37 are combined, the fixing of the bottom plate 13, the plurality of groups of sealing plates 8 and the cover plate 5 is completed through the locking rod 39, so that the installation of the feed inlet 6 is realized, the air tightness of the top of the cover plate 5 can be ensured, the locking rod 39 between the bottom plate 13 and the sealing plates 8 and the cover plate 5 at the appointed position can be loosened, the positions of the bottom plate 13 and the sealing plates 8 are exchanged, and finally the positioning is completed through the locking rod 39, so that the position of the feed inlet 6 is adjusted, and the feed inlet 6 can be adjusted according to the use requirement, so that the application range of the screw conveyer without a shaft is improved.

Specifically, as shown in fig. 1 and 2, the two horizontal sides of the U-shaped conveying groove 4 are fixedly connected with the side frame 1 and the frame 2, the cover plate 5 is fixed at the top of the U-shaped conveying groove 4, the driving piece 7 is fixedly mounted on the inner surface wall of the frame 2, the output end of the driving piece 7 is fixedly connected with the spiral blade 10, and the driving piece 7 drives the spiral blade 10 to rotate so as to realize conveying of materials in the U-shaped conveying groove 4.

Specifically, as shown in fig. 6 and 7, the supporting component includes a support 20, the top of the support 20 is fixedly connected with the inner surface wall of the top of the connecting bin 9 through a vertical rod 36, two ends of the support 20 are fixedly provided with clamping sleeves 18, two groups of clamping sleeves 18 are respectively sleeved on the outer surface walls of the supporting rod 11 and the rod, so that the rotation stability of the first gear 17 and the second gear 19 is ensured, a first chute 27 and a second chute 26 which are vertically distributed are formed in the inner surface wall of the fixed seat 23, the first chute 27 and the second chute 26 are respectively in sliding fit with the first slider 24 and the second slider 25, two sides of the vertical ends of the first chute 27 and the second chute 26 are respectively communicated with side grooves 28, two sides of the vertical ends of the first slider 24 and the second slider 25 are fixedly provided with limiting sliding sheets, and the limiting sliding sheets are in sliding connection with the side grooves 28, so that the sliding stability of the first slider 24 and the second slider 25 is ensured.

Specifically, as shown in fig. 5 and 6, the inner surface wall at the vertical end of the U-shaped conveying groove 4 is provided with a dislocation groove 40, the first spring 15 is elastically connected between the inner surface wall of the dislocation groove 40 and the outer surface wall of the attaching plate 12, the outer surface wall at the vertical end of the attaching plate 12 is attached to the inner surface wall at the vertical end of the U-shaped conveying groove 4, the dislocation groove 40 ensures the movable space of the attaching plate 12, and can ensure that the attaching plate 12 can be attached to one side of the U-shaped conveying groove 4, at least three groups of dislocation grooves 40 and the first spring 15 are distributed in a U-shape, so that the attaching plate 12 can stably move after being impacted by the ejector rod 16, one side of the attaching plate 12 close to the first spring 15 and one side of the ejector rod 16 far away from the second slider 25 are respectively wrapped with an elastic cushion layer, so as to avoid rigid contact between the ejector rod 16 and the attaching plate 12, ensure the service life of the attaching plate 12, the bottom of the cover plate 5 is fixedly provided with a protrusion with a rectangular structure, the top of the U-shaped conveying groove 4 is provided with a groove 14, and the protrusion and the groove 14 are transitionally matched, so that the cover plate 5 and the U-shaped conveying groove 4 are combined stably.

According to the embodiment, the supporting rod 11 is fixed on the inner surface of the free end of the spiral blade 10, the supporting rod 11 is located on one side of the discharge hole 3 and penetrates through the U-shaped conveying groove 4, so that the whole shaftless conveying of the device is not hindered, the free end of the spiral blade 10 can be supported, axial deviation of the free end is avoided, meanwhile, the supporting rod 11 can drive the gear I17 to axially rotate along with the spiral blade 10, the gear I17 drives the turntable 21 to rotate clockwise through meshing with the gear II 19, the turntable 21 can enable the connecting rod 22 between the turntable 21 and the slider I24 to form adjustment in the rotating process, and the connecting rod 22 can drive the slider I24 to reciprocate in the horizontal direction in the inner surface of the chute I27 in the continuous rotating process of the turntable 21, and the embodiment comprises the following steps: the first slide 24 moves towards the second slide 25 along the first slide 27, in the process, the second bump 32 contacts with the inclined surface of the wedge 29, the second slide 25 is kept motionless by the limit block 34, the wedge 29 slides towards the inside of the second slide 25 and compresses the elastic element in the inside until the first slide 24 reaches the leftmost position of the first slide 27, the second bump 32 passes over the wedge 29, the wedge 29 is reset under the action of the carbon elastic element, the first slide 24 slides rightwards along the first slide 27, the second bump 32 contacts with the vertical edge of the wedge 29, the second bump 32 drives the second slide 25 and the ejector rod 16 to synchronously move rightwards and compress the second spring 31 until the first bump 30 at the top of the wedge 29 contacts with the inclined surface of the matching piece 33, the first slide 24 and the second bump 32 move continuously, and the wedge 29 contracts into the second slide 25 again, the wedge-shaped block 29 loses the restraint of the second convex block 32, the second sliding block 25 can rebound and reset rapidly under the action of the second spring 31, the ejector rod 16 can strike the laminating plate 12, the laminating plate 12 can carry out horizontal displacement of a designated stroke and stretch the first spring 15, so that the material attached to the surface wall of the U-shaped conveying groove 4 in the area is pushed away, meanwhile, the quick striking can cause the laminating plate 12 to shake at high frequency, the material attached to the outer surface wall of the laminating plate 12 can be separated, thereby realizing the support of the spiral blade 10, and the material which passes through the discharge hole 3 and is positioned in the U-shaped conveying groove 4 can be cleaned efficiently, thereby improving the use effect of the shaftless spiral conveying device, the length of the stepped groove 37 is just the sum of the lengths of the bottom plate 13 and the multiple groups of sealing plates 8, when in use, the bottom plate 13 and the multiple groups of sealing plates 8 are combined with the stepped groove 37, and the fixation with the cover plate 5 is completed through the locking rod 39, therefore, the installation of the feed inlet 6 is realized, the air tightness of the top of the cover plate 5 can be ensured, the locking rod 39 between the bottom plate 13 and the sealing plate 8 at the designated position and the cover plate 5 can be loosened, the position of the bottom plate 13 and the position of the sealing plate 8 are exchanged, and finally the positioning is completed through the locking rod 39, so that the position of the feed inlet 6 is adjusted, the feed inlet 6 can be adjusted according to the use requirement, and the application range of the shaftless spiral conveying device is improved.

The previous description of the embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. The shaftless spiral conveying device comprises a U-shaped conveying groove (4), a spiral blade (10), a discharge hole (3), a cover plate (5) and a feed hole (6), and is characterized in that one side of the discharge hole (3) away from the feed hole (6) is provided with a support rod (11) fixedly connected with the spiral blade (10), the support rod (11) is arranged on one side of the U-shaped conveying groove (4) in a penetrating mode, the outer surface wall of the U-shaped conveying groove (4) is fixedly provided with a connecting bin (9), the top of the connecting bin (9) is provided with a first gear (17) and a second gear (19) which are in meshed connection through a supporting component, the first gear (17) is fixedly connected with the support rod (11), the second gear (19) is fixedly connected with a rotary table (21) through a rod, a fixed seat (23) is fixedly arranged on the inner surface wall of the vertical end of the connecting bin (9), a first sliding block (24) and a second sliding block (25) are in sliding connection on the inner surface of the fixed seat (23), a pushing component used for horizontally reciprocating movement of the first sliding block (24) is arranged between the first sliding block (24) and the front end face of the rotary table (21), the bottom of the first sliding block (24) is fixedly provided with a second sliding block (32) through a wedge-shaped block (29), the second sliding block (29) is fixedly provided with a wedge-shaped elastic block (30), limiting blocks (34), mounting seats (35) and matching sheets (33) are fixedly mounted on the inner surface wall of the fixing seat (23), the limiting blocks (34) are abutted against the second sliding block (25), springs (31) are elastically connected between the mounting seats (35) and the second sliding block (25), the inner surface wall of the vertical end of the U-shaped conveying groove (4) is elastically connected with a bonding plate (12) in sliding fit with the supporting rod (11) through the first spring (15), and a push rod (16) abutted against the bonding plate (12) is fixedly mounted on one side, far away from the second spring (31), of the second sliding block (25).

2. The shaftless screw conveyor according to claim 1, characterized in that a stepped groove (37) is formed in the top of the cover plate (5), a bottom plate (13) and a plurality of groups of sealing plates (8) are connected to the inner surface wall of the stepped groove (37) in a clamping manner, the length of the stepped groove (37) is equal to the sum of the lengths of the bottom plate (13) and the plurality of groups of sealing plates (8), the bottom plate (13) is fixedly connected with the feed inlet (6), and the bottom plate (13) and the plurality of groups of sealing plates (8) are fixedly connected with the cover plate (5) through locking rods (39).

3. The shaftless spiral conveying device according to claim 1, wherein two horizontal sides of the U-shaped conveying groove (4) are fixedly connected with the side frames (1) and the machine frame (2), the cover plate (5) is fixed at the top of the U-shaped conveying groove (4), the driving piece (7) is fixedly arranged on the inner surface wall of the machine frame (2), and the output end of the driving piece (7) is fixedly connected with the spiral blade (10).

4. The shaftless screw conveyor according to claim 1, wherein the support assembly comprises a support (20), the top of the support (20) is fixedly connected with the inner surface wall of the top of the connecting bin (9) through a vertical rod (36), clamping sleeves (18) are fixedly arranged at two ends of the support (20), and the two groups of clamping sleeves (18) are respectively sleeved on the outer surface walls of the support rod (11) and the rod piece.

5. The shaftless screw conveyor according to claim 1, wherein a first chute (27) and a second chute (26) are vertically distributed on the inner surface wall of the fixed seat (23), the first chute (27) and the second chute (26) are respectively in sliding fit with the first chute (24) and the second chute (25), two sides of the vertical ends of the first chute (27) and the second chute (26) are respectively communicated with side grooves (28), two sides of the vertical ends of the first chute (24) and the second chute (25) are respectively fixedly provided with a limiting sliding sheet, and the limiting sliding sheet is in sliding connection with the side grooves (28).

6. The shaftless screw conveyor according to claim 1, wherein the inner surface wall of the vertical end of the U-shaped conveying groove (4) is provided with a dislocation groove (40), the first spring (15) is elastically connected between the inner surface wall of the dislocation groove (40) and the outer surface wall of the attaching plate (12), and the outer surface wall of the vertical end of the attaching plate (12) is attached to the inner surface wall of the vertical end of the U-shaped conveying groove (4).

7. The shaftless screw conveyor according to claim 1, wherein the attaching plate (12) is provided with an elastic cushion layer on a side close to the first spring (15) and a side of the ejector rod (16) away from the second slider (25).

8. A shaftless screw conveyor according to claim 1, characterized in that the pushing assembly comprises two sets of pins (38) fixedly mounted on the front end surfaces of the turntable (21) and the first slider (24), respectively, and the outer walls of the two sets of pins (38) are simultaneously sleeved with the connecting rod (22).

9. The shaftless screw conveyor according to claim 2, characterized in that the bottom of the cover plate (5) is fixedly provided with a protrusion of rectangular structure, the top of the U-shaped conveying groove (4) is provided with a groove (14), and the protrusion is in transition fit with the groove (14).

10. A shaftless screw conveyor according to claim 6, characterized in that at least three of the dislocation slots (40) are distributed in a U-shape with the first spring (15).