A multi-stage variable speed spiral blade and a spiral conveyor thereof

Abstract

The present invention relates to the technical field of conveyors, and in particular to a multi-stage variable speed spiral blade and a spiral conveyor thereof. Its technical solution includes: a threaded conveying support assembly, a threaded conduction assembly installed on the threaded conveying support assembly, and a blade assembly installed on the threaded conduction assembly, wherein the threaded conveying support assembly includes an external positioning frame, an external shaft conveying pipeline is installed above the external positioning frame, and a tail processing block is fixedly installed on one side of the external positioning frame. When the built-in threaded blade tube of the present invention plays the same role as the external threaded blade tube in guiding the flow of liquid, the fluid located on one side of the built-in threaded blade tube follows the flow direction of the liquid, and the built-in threaded blade tube in a pushing state forms a driving force for the liquid near the output port, accelerates the output of the fluid, and forms a stirring effect toward the output port for the fluid with higher viscosity, thereby improving the output efficiency of the fluid and avoiding the fluid with higher viscosity from adhering to the inner wall of the equipment and being difficult to push.

Description

Technical Field

[0001] The invention relates to the technical field of conveyors, and in particular to a multi-stage variable speed spiral blade and a spiral conveyor thereof. Background Art

[0002] The multi-stage variable speed spiral blade conveyor is mainly used for liquid transportation. It can suck the liquid from the inlet, compress it step by step along the direction of the spiral blades, and finally discharge it from the outlet. The working process of the multi-stage variable speed spiral blade conveyor mainly includes the steps of liquid suction, spiral blade step by step compression, liquid discharge, etc. It uses the multi-stage variable speed spiral blades to control the speed to achieve precise control of flow rate and head. It is suitable for various liquid transportation, including special working conditions such as high viscosity, high temperature, and high pressure.

[0003] In the patent document with the publication number CN107364692B, a screw conveyor is disclosed, including a rotating motor, an inner shaft, a transmission component, an outer shaft and blades. The inner shaft is a water-cooled hollow shaft, and the outer shaft is radially spaced outside the inner shaft to form a radial spacing space between the inner and outer shafts for heat insulation, and a transmission component is arranged in the radial spacing space to drive and connect the inner and outer shafts; wherein, the screw conveyor is provided with a feed port and a discharge port, and the rotating motor drives the inner shaft to rotate, and then drives the outer shaft and blades to rotate through the transmission component, so that the high-temperature liquid entering from the feed port flows out from the discharge port under the action of the blades. This screw conveyor can operate for a long time at high temperature, ensuring structural rigidity and strength; at the same time, it greatly reduces the heat conduction between the inner and outer shafts, and can avoid the cooling water of the inner shaft taking away a large amount of heat from the high-temperature liquid; the outer shaft mainly bears high temperature, and the torque force is small, and conventional high-temperature resistant materials can be selected to operate at high temperature for a long time.

[0004] When the above device is in use, since the screw conveyor often transports low-temperature liquids and high-temperature liquids, and the transported liquids are usually substances with high viscosity, they are easy to cause blockage at the input and output ports of the screw conveyor under high or low temperature conditions, resulting in the inability of the liquid to flow normally, which greatly affects the conveying efficiency of the screw conveyor.

[0005] Therefore, the present application proposes a multi-stage variable speed spiral blade and a spiral conveyor thereof. Summary of the invention

[0006] The purpose of the present invention is to propose a multi-stage variable speed spiral blade and a screw conveyor thereof to address the problem that the conveyed liquid in the background technology is usually a substance with high viscosity, which is easy to cause blockage at both the input and output ports of the screw conveyor under high or low temperature conditions, resulting in the liquid being unable to flow normally, and the conveying efficiency of the screw conveyor being greatly affected.

[0007] On the one hand, the present invention provides a multi-stage variable speed spiral blade, comprising a thread conveying support assembly, a thread conduction assembly mounted on the thread conveying support assembly, and a blade assembly mounted on the thread conduction assembly:

[0008] The thread conveying support assembly comprises an external positioning frame, an external shaft conveying pipeline is installed above the external positioning frame, and a tail processing block is fixedly installed on one side of the external positioning frame;

[0009] The thread transmission assembly includes a motor, which is fixedly mounted on the surface of the external positioning frame, and the output shaft of the motor is fixedly mounted with a second gear, the outer side of the second gear is meshedly connected with a third gear, and the inner part of the third gear is fixedly mounted with an inner shaft rotating rod, and the inner shaft rotating rod is located inside the outer shaft conveying pipe, and the number of the inner shaft rotating rods is two;

[0010] The blade assembly includes an external threaded blade tube, and two inner shaft rotating rods are fixedly installed on both sides of the external threaded blade tube, one of the inner shaft rotating rods is installed on the tail processing block on the side away from the external threaded blade tube, and a plurality of telescopic mounting cavities are opened on the surface of the external threaded blade tube, and the inner side of the external threaded blade tube is slidably connected with the internal threaded blade tube through the plurality of telescopic mounting cavities, and a fluid guide assembly is connected between the inner shaft rotating rod and the external threaded blade tube.

[0011] Optionally, a liquid flow conduction cavity is opened inside the built-in threaded leaf tube, a cavity rod is fixedly installed on the inner wall of the external threaded leaf tube, a push rod is fixedly connected to the outer side of the built-in threaded leaf tube, the cavity rod and the push rod are arranged in a sliding installation state, and a spring is fixedly installed between the push rod and the cavity rod.

[0012] Optionally, a plurality of positioning rotating rods are fixedly installed on the inner wall of the external threaded blade tube through a plurality of arc-shaped holes, the outer sides of the plurality of positioning rotating rods are hinged with the same number of arc-shaped paddle plates, and the internal threaded blade tube is provided with sliding grooves which are the same number as the arc-shaped paddle plates, and the arc-shaped paddle plates are located in the sliding grooves of the internal threaded blade tube, and an arc-shaped spring is fixedly installed between the internal threaded blade tube and the arc-shaped paddle plates.

[0013] On the other hand, the present invention provides a screw conveyor, comprising the above-mentioned multi-stage variable speed screw blade, the screw conveying support assembly further comprising an input pipe, the input pipe is fixedly mounted on the top of the outer shaft conveying pipe, and the outer shaft conveying pipe is fixedly mounted with an output port on a side away from the motor;

[0014] A piston cleaning mechanism is installed on the threaded conduction component, and the piston cleaning mechanism includes an airbag cleaning block, which is slidably installed on the outside of the inner shaft rotating rod, and the inside of the airbag cleaning block is slidably connected with a push block, and a threaded guide rail is fixedly installed on the side of the push block away from the airbag cleaning block, and a placement long rod is fixedly connected to the outside of the inner shaft rotating rod, and the inside of the placement long rod is rotatably connected with a piston rotating rod, and the piston rotating rod is slidably installed on the threaded guide rail.

[0015] Optionally, a telescopic rod is fixedly installed on the side of the push block away from the airbag cleaning block, and the side of the telescopic rod away from the push block is fixedly installed on the inner wall of the outer shaft conveying pipe, and a first spring is fixedly installed inside the telescopic rod.

[0016] Optionally, a ring-shaped foldable raised airbag block is fixedly installed between the push block and the airbag cleaning block, and a threaded airbag pattern is arranged on the outer side of the foldable raised airbag block.

[0017] Optionally, an output groove is opened on one side of the outer shaft conveying pipe close to the tail processing block, an input pipe is fixedly installed at the top of the outer shaft conveying pipe, there are two groups of piston cleaning mechanisms, and the two groups of piston cleaning mechanisms are respectively arranged below the input pipe and above the output groove.

[0018] Optionally, an external thermostatic component is installed on the outer side of the threaded conveying support component;

[0019] The external thermostatic component includes a hollow guide ring block with a built-in cavity, and four arc-shaped ducts are fixedly installed on the outside of the hollow guide ring block. The four arc-shaped ducts, the hollow guide ring block and the external shaft conveying pipeline are fixedly installed through a connecting guide block.

[0020] Optionally, the thread transmission component further comprises an elongated gear, wherein the elongated gear is fixedly mounted on the outer side of the inner shaft rotating rod, and the outer side of the elongated gear is meshingly connected with a built-in ring gear block.

[0021] Optionally, the external thermostatic component also includes four first gears, which are rotatably installed on the same number of arc-shaped conduits, and the four first gears are meshingly connected to the built-in ring gear block. The interior of the first gear is fixedly connected to an auxiliary rotating shaft, and the auxiliary rotating shaft is located inside the arc-shaped conduit and fixedly installed with threaded blades.

[0022] Compared with the prior art, the present invention has the following beneficial technical effects:

[0023] 1. When the internal threaded impeller and the external threaded impeller form relative motion, the push rod and the cavity rod perform relative sliding motion. The spring not only limits the sliding distance between the external threaded impeller and the internal threaded impeller, but also returns the internal threaded impeller to its original position when the liquid transport volume decreases or the spiral blade speed decreases to reduce the liquid thrust, causing the internal threaded impeller to swing back and forth in the liquid, thereby expanding the stirring effect and preventing the liquid from solidifying or adhering to the inner wall of the equipment.

[0024] 2. As the internal threaded blade tube slides along the telescopic placement cavity under the thrust of the liquid, friction is formed between the external threaded blade tube and the internal threaded blade tube, causing the arc-shaped paddle board to deflect along the positioning rotating rod and perform paddling motion to push the transported water flow, thereby accelerating the renewal of the water flow and ensuring that the temperature inside and outside the spiral blade is consistent;

[0025] 3. The airbag cleaning block pushes the liquid located directly below the input pipe to speed up its transportation in the outer shaft conveying pipe. At the same time, the airbag cleaning block hangs on the opening of the input pipe located at the outer shaft conveying pipe and the inner wall under the opening, thereby preventing the liquid from clogging the opening of the input pipe due to viscosity and leaving residue on the inner wall under the opening, thus ensuring the normal circulation of the liquid;

[0026] 4. The auxiliary shaft uses the threads of the threaded blades to guide the external water tank to guide the water flow from the arc-shaped duct to the flow pipe located at the tail processing block through the water pipe, so that the water flow completely covers the entire outer shaft conveying pipeline position, forming a water circulation with the external water tank, and then better cooperating with the liquid flow conduction cavity to maintain the same temperature, providing a better liquid delivery environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A structural schematic diagram of the screw conveyor of the present invention is given;

[0028] Figure 2 A schematic structural diagram of the external positioning frame of the present invention is given;

[0029] Figure 3 The present invention is given Figure 2 A partial enlarged view of the middle part;

[0030] Figure 4 A schematic structural diagram of a multi-stage variable speed spiral blade of the present invention is given;

[0031] Figure 5 A schematic structural diagram of the hollow guide ring block of the present invention is given;

[0032] Figure 6 A schematic structural diagram of the externally threaded blade tube of the present invention is given;

[0033] Figure 7 The present invention is given Figure 6 A partial enlarged view of part B in the middle;

[0034] Figure 8 The present invention is given Figure 6 A partial enlarged view of the middle C part;

[0035] Fig. 9 A schematic structural diagram of the built-in threaded blade tube of the present invention is given;

[0036] Fig.10 A structural schematic diagram of a push block of the present invention is provided;

[0037] Fig.11 A structural schematic diagram of the threaded guide rail of the present invention is given.

[0038] Figure numerals: 1. Threaded conveying support assembly; 101. External positioning frame; 102. External shaft conveying pipeline; 103. Input pipeline; 104. Connecting guide block; 105. Tail processing block; 2. External constant temperature assembly; 201. Hollow guide ring block; 202. Arc duct; 203. First gear; 204. Auxiliary shaft; 205. Threaded blade; 3. Threaded transmission assembly; 301. Motor; 302. Second gear; 303. Third gear; 304. Inner shaft rotating rod; 305. Internal ring gear block; 306. Pull Long gear; 4. Blade assembly; 401. Externally mounted threaded blade tube; 402. Liquid flow conduction chamber; 403. Telescopic placement chamber; 404. Internally mounted threaded blade tube; 405. Positioning rotating rod; 406. Arc-shaped paddle board; 407. Arc-shaped spring; 408. Push rod; 409. Cavity rod; 5. Piston cleaning mechanism; 501. Airbag cleaning block; 502. Telescopic rod; 503. Threaded guide rail; 504. Folding raised airbag block; 505. Push block; 506. Placement long rod; 507. Piston rotating rod; 508. First spring. DETAILED DESCRIPTION

[0039] The technical solution of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0040] Example 1

[0041] like Figure 1 - Figure 8 As shown, a multi-stage variable speed spiral blade proposed by the present invention includes a thread conveying support component 1, a thread conduction component 3 installed on the thread conveying support component 1, and a blade component 4 installed on the thread conduction component 3:

[0042] The screw conveying support assembly 1 comprises an external positioning frame 101, an external shaft conveying pipeline 102 is installed above the external positioning frame 101, and a tail processing block 105 is fixedly installed on one side of the external positioning frame 101;

[0043] The threaded transmission component 3 includes a motor 301, which is fixedly mounted on the surface of the external positioning frame 101. The output shaft of the motor 301 is fixedly mounted with a second gear 302. The outer side of the second gear 302 is meshedly connected with a third gear 303. The inner shaft rotating rod 304 is fixedly mounted inside the third gear 303. The inner shaft rotating rod 304 is located inside the outer shaft conveying pipe 102. There are two inner shaft rotating rods 304. The motor 301 drives the second gear 302 to rotate through the output shaft. The second gear 302 drives the third gear 303 to rotate by meshing with the third gear 303. The third gear 303 drives the inner shaft rotating rod 304 to rotate. The blade component 4 is controlled by multi-stage speed change through the speed change of the output shaft of the motor 301. At the same time, the inner shaft rotating rod 304 passes through one side of the third gear 303 and is located at the outer side of the external positioning frame 101. It is rotatably connected with a water tank for replacing the water source.

[0044] The blade assembly 4 includes an external threaded blade tube 401, two inner shaft rotating rods 304 are fixedly installed on both sides of the external threaded blade tube 401, one of the inner shaft rotating rods 304 is installed on the tail processing block 105 away from the external threaded blade tube 401, and the surface of the external threaded blade tube 401 is provided with a plurality of telescopic placement cavities 403, and the inner side of the external threaded blade tube 401 is slidably connected with the internal threaded blade tube 404 through the plurality of telescopic placement cavities 403, and the surface of the external threaded blade tube 401 is provided with a plurality of telescopic placement cavities 403, and the internal threaded blade tube 404 is fixedly installed with an arc block flush with the outer surface of the external threaded blade tube 401 at the position of the plurality of telescopic placement cavities 403, and the outer side of the arc block is fixedly installed with a threaded blade, then the internal The threaded leaf tube 404 slides within the scope of the telescopic placement cavity 403, and the inner shaft rotating rod 304 and the external threaded leaf tube 401 are connected with a fluid guide component. When a large amount of liquid is injected into the external shaft delivery pipeline 102, the inner shaft rotating rod 304 drives the external threaded leaf tube 401 and the internal threaded leaf tube 404 to rotate, and the thrust of the thread is used to push the liquid from the input port to the output port. A liquid flow conduction cavity 402 is opened inside the internal threaded leaf tube 404, and a cavity rod 409 is fixedly installed on the inner wall of the external threaded leaf tube 401. A push rod 408 is fixedly connected to the outer side of the internal threaded leaf tube 404. The cavity rod 409 and the push rod 408 are arranged in a sliding installation state, and a spring is fixedly installed between the push rod 408 and the cavity rod 409;

[0045] The present invention provides a screw conveyor, comprising a multi-stage variable speed screw blade, and the screw conveyor comprises a threaded conveying support assembly 1 and an input pipe 103, the input pipe 103 is fixedly mounted on the top of an outer shaft conveying pipe 102, an output port is fixedly mounted on the side of the outer shaft conveying pipe 102 away from the motor 301, and a piston cleaning mechanism 5 is installed on the threaded conduction assembly 3, when the piston cleaning mechanism 5 located at the input pipe 103 repeatedly pushes the liquid at the input pipe 103, a thrust is generated on the liquid, and the internal threaded blade tube 404 and the external threaded blade tube 401 also guide the liquid flow, and the total thrust generated by the liquid flow When the force is greater than the resistance of the spring and the sliding resistance of the built-in threaded leaf tube 404, the built-in threaded leaf tube 404 slides along the telescopic housing chamber 403. When the amount of liquid infusion fluctuates, the total thrust generated by the liquid flow is less than the resistance of the spring and the sliding resistance of the built-in threaded leaf tube 404, the built-in threaded leaf tube 404 returns to its original position, causing the built-in threaded leaf tube 404 to slide back and forth accordingly, stirring and moving the liquid flowing into the built-in threaded leaf tube 404 back and forth, so that the liquid will not stick together too much, thereby improving the output efficiency of the fluid and avoiding the accumulation of fluids with higher viscosity and sticking to the inner wall of the equipment, which is difficult to push.

[0046] Example 2

[0047] like Figure 1 and Figure 7As shown, based on Example 1, the inner wall of the external threaded blade tube 401 is fixedly installed with a plurality of positioning rotating rods 405 through a plurality of arc holes, and the outer sides of the plurality of positioning rotating rods 405 are hinged with the same number of arc-shaped paddle plates 406, and the internal threaded blade tube 404 is provided with a slide groove with the same number of arc-shaped paddle plates 406, and the arc-shaped paddle plates 406 are located in the slide groove of the internal threaded blade tube 404, and an arc spring 407 is fixedly installed between the internal threaded blade tube 404 and the arc-shaped paddle plates 406, and the internal threaded blade tube 404 is fixedly installed with a limiting block on the side of the arc-shaped paddle plates 406 away from the arc spring 407 to limit the rotation angle of the arc-shaped paddle plates 406, and for liquids that need to be transported at high temperature, the water flow with higher temperature is transported through the water tank through the inner shaft rotating rod 304 into the liquid flow conduction cavity 402, thereby ensuring that the internal threaded blade tube 4 04 and the temperature of the external threaded blade tube 401, avoiding a large temperature difference between the surface and the interior of the internal threaded blade tube 404 and the external threaded blade tube 401, thereby dispersing part of the heat of the liquid and failing to achieve a good transportation effect. On the contrary, if it is necessary to dissipate the heat of the transported liquid, the water with a lower temperature is transported through the water tank through the inner shaft rotating rod 304 into the liquid flow conduction cavity 402, and the transported liquid is quickly cooled, so that it is suitable for transporting liquids different from the requirements, and as the internal threaded blade tube 404 slides along the telescopic placement cavity 403 through the thrust of the liquid, a friction force is formed between the external threaded blade tube 401 and the internal threaded blade tube 404, causing the arc-shaped paddle plate 406 to deflect along the positioning rotating rod 405, perform a paddling motion, and push the transported water flow, thereby accelerating the renewal of the water flow and ensuring that the temperature inside and outside the spiral blades is consistent.

[0048] Example 3

[0049] like Figure 1 - Fig.11As shown, the piston cleaning mechanism 5 includes an airbag cleaning block 501, which is slidably mounted on the outer side of the inner shaft rotating rod 304, and a push block 505 is slidably connected inside the airbag cleaning block 501. A threaded guide rail 503 is fixedly mounted on the side of the push block 505 away from the airbag cleaning block 501, and the threaded guide rail 503 forms a closed loop state. A placement rod 506 is fixedly connected to the outer side of the inner shaft rotating rod 304, and a piston rotating rod 507 is rotatably connected to the inner side of the placement rod 506. The piston rotating rod 507 is slidably mounted on the threaded guide rail 503. As the inner shaft rotating rod 304 drives the placement rod 506 to rotate, the placement rod 506 drives the piston rotating rod 507 to rotate along the trajectory of the threaded guide rail 503. Since the threaded guide rail 503 is in an up and down undulating state, when the piston rotating rod 507 rotates to the end of the threaded guide rail 503 that is closer to the long rod 506, the push block 505 drives the airbag cleaning block 501 to slide along the surface of the inner shaft rotating rod 304 due to the thrust of the piston rotating rod 507. The airbag cleaning block 501 pushes the liquid located directly below the input pipe 103 to accelerate its transportation in the outer shaft conveying pipe 102. At the same time, the airbag cleaning block 501 scrapes the input pipe 103 at the opening of the outer shaft conveying pipe 102 and the inner wall under the opening, thereby preventing the liquid from clogging the opening of the input pipe 103 due to viscosity and leaving residue on the inner wall under the opening, thereby ensuring the normal circulation of the liquid.

[0050] In this embodiment, a telescopic rod 502 is fixedly installed on the side of the push block 505 away from the airbag cleaning block 501, and the side of the telescopic rod 502 away from the push block 505 is fixedly installed on the inner wall of the outer shaft conveying pipe 102. A first spring 508 is fixedly installed inside the telescopic rod 502. The telescopic rod 502 limits the push block 505 to only slide. At the same time, as the piston rotating rod 507 moves to the end of the threaded guide rail 503 away from the long rod 506, the piston rotating rod 507 and the threaded guide rail 503 are connected. The limit plate at the connection of the rail 503 causes the piston rotating rod 507 to slide only along the threaded guide rail 503, and the piston rotating rod 507 pulls the threaded guide rail 503 and the elastic restoring force of the first spring 508 to move toward the placement of the long rod 506, so that the placement of the long rod 506 slides into the connection of the outer shaft conveying pipe 102, so that the residual material just cleared from the input pipe 103 on the surface of the placement of the long rod 506 is scraped off by the fit between the outer shaft conveying pipe 102 and the airbag cleaning block 501, thereby providing In order to improve the cleaning effect of the scraping component, a foldable raised airbag block 504 arranged in an annular shape is fixedly installed between the push block 505 and the airbag cleaning block 501, and a threaded airbag pattern is arranged on the outer side of the foldable raised airbag block 504. When there are more blockages on the inner wall of the outer shaft conveying pipe 102 and the opening of the input pipe 103, the airbag cleaning block 501 encounters resistance when sliding there, and the push block 505 slides along the airbag cleaning block 501, and the foldable raised airbag block 504 is blocked. The push block 505 is squeezed and expanded, and the airbag texture of the foldable raised airbag block 504 is pressed and bulged outward, causing the airbag cleaning block 501 to be partially compressed and expanded, and the contact surface pressure between the airbag cleaning block 501 and the inner wall of the outer shaft conveying pipe 102 and the opening of the input pipe 103 is better, so that when the push block 505 is pushed, the airbag cleaning block 501 can better push the blockage on the inner wall of the outer shaft conveying pipe 102 and the opening of the input pipe 103, thereby improving the pushing efficiency.

[0051] Example 4

[0052] like Figure 1 - Figure 3 As shown, based on the above-mentioned embodiment 1 or 2, an output groove is opened on one side of the outer shaft conveying pipeline 102 close to the tail processing block 105, an input pipeline 103 is fixedly installed on the top of the outer shaft conveying pipeline 102, the number of piston cleaning mechanisms 5 is two groups, and the two groups of piston cleaning mechanisms 5 are respectively arranged below the input pipeline 103 and above the output groove, and the piston cleaning mechanisms 5 are arranged at the input port and the output port of the conveyor, and then the output port and the input port of the conveyor are cleaned synchronously, thereby ensuring the overall fluidity of the liquid in the conveyor, and an external thermostatic component 2 is installed on the outside of the threaded conveying support component 1;

[0053] The external constant temperature component 2 includes a hollow guide ring block 201 with a built-in cavity, and four arc-shaped ducts 202 are fixedly installed on the outer side of the hollow guide ring block 201. The four arc-shaped ducts 202, the hollow guide ring block 201 and the external shaft conveying pipeline 102 are fixedly installed through a connecting guide block 104. The threaded conduction component 3 also includes an elongated gear 306, which is fixedly installed on the outer side of the inner shaft rotating rod 304, and the outer side of the elongated gear 306 is meshedly connected with a built-in ring gear block 305.

[0054] In this embodiment, the external thermostatic component 2 also includes four first gears 203, which are rotatably mounted on the same number of arc-shaped conduits 202. The four first gears 203 are meshedly connected with the built-in ring gear block 305. The first gear 203 is fixedly connected with an auxiliary shaft 204 inside. The auxiliary shaft 204 is located inside the arc-shaped conduit 202 and is fixedly mounted with a threaded blade 205. The elongated gear 306 drives the meshed built-in ring gear block 305 to rotate synchronously through the inner shaft rotating rod 304. The built-in ring gear block 305 drives the first gear 203 to rotate by meshing with the four first gears 203. The four first gears 203 drive the auxiliary shaft 204 to rotate, and the water flow from the port located above an arc-shaped conduit 202 is introduced from here. At the same time, a ring conduction is formed between the hollow guide ring block 201 and the arc-shaped conduit 202. The auxiliary shaft 204 uses the threads of the threaded blades 205 to guide the external water tank to transport the water from the arc-shaped conduit 202 to the flow pipe located at the tail processing block 105 through the water pipe, so that the water flow completely covers the entire outer shaft conveying pipeline 102, forming a water circulation with the external water tank, and then better cooperating with the liquid flow conduction cavity 402 to maintain the same temperature, providing a better liquid delivery environment.

[0055] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0056] "Comprising" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent to such process, method, article, or apparatus.

[0057] The above specific embodiments are only several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant inspirations of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multi-stage variable speed spiral blade, comprising a thread conveying support assembly (1), a thread conducting assembly (3) mounted on the thread conveying support assembly (1), and a blade assembly (4) mounted on the thread conducting assembly (3), characterized in that: The thread conveying support assembly (1) comprises an external positioning frame (101), an external shaft conveying pipeline (102) is installed above the external positioning frame (101), a tail processing block (105) is fixedly installed on one side of the external positioning frame (101), and the thread transmission assembly (3) comprises a motor (301), the motor (301) is fixedly installed on the surface of the external positioning frame (101), a second gear (302) is fixedly installed on the output shaft of the motor (301), the outer side of the second gear (302) is meshingly connected with a third gear (303), and the third gear ( An inner shaft rotating rod (304) is fixedly installed inside the outer shaft conveying pipe (102), and the number of the inner shaft rotating rods (304) located inside the outer shaft conveying pipe (102) is two, the blade assembly (4) comprises an externally threaded blade tube (401), two of the inner shaft rotating rods (304) are fixedly installed on both sides of the externally threaded blade tube (401), one of the inner shaft rotating rods (304) is installed on the tail processing block (105) on a side away from the externally threaded blade tube (401), a plurality of telescopic placement cavities (403) are opened on the surface of the externally threaded blade tube (401), and the externally threaded blade tube (401) is provided with a plurality of telescopic placement cavities (403). 01) is slidably connected to an internal threaded blade tube (404) via a plurality of telescopic placement cavities (403); a fluid guide assembly is connected to the internal shaft rotating rod (304) and the external threaded blade tube (401); a liquid flow conduction cavity (402) is provided inside the internal threaded blade tube (404); a cavity rod (409) is fixedly installed on the inner wall of the external threaded blade tube (401); a push rod (408) is fixedly connected to the outer side of the internal threaded blade tube (404); the cavity rod (409) and the push rod (408) are arranged in a sliding installation state; the push rod (408) A spring is fixedly installed between the cavity rod (409), a plurality of positioning rotating rods (405) are fixedly installed on the inner wall of the external threaded blade tube (401) through a plurality of arc-shaped holes, the outer sides of the plurality of positioning rotating rods (405) are hinged with the same number of arc-shaped paddle plates (406), and the internal threaded blade tube (404) is provided with sliding grooves that are the same in number as the arc-shaped paddle plates (406), and the arc-shaped paddle plates (406) are located in the sliding grooves of the internal threaded blade tube (404), and an arc-shaped spring (407) is fixedly installed between the internal threaded blade tube (404) and the arc-shaped paddle plates (406).

2. A screw conveyor, comprising the multi-stage variable speed screw blade according to claim 1, characterized in that: The threaded conveying support assembly (1) further comprises an input pipe (103), wherein the input pipe (103) is fixedly mounted on the top of the outer shaft conveying pipe (102), and an output port is fixedly mounted on a side of the outer shaft conveying pipe (102) away from the motor (301). A piston cleaning mechanism (5) is mounted on the threaded transmission assembly (3), and the piston cleaning mechanism (5) comprises an airbag cleaning block (501), wherein the airbag cleaning block (501) is slidably mounted on the outside of the inner shaft rotating rod (304), wherein a push block (505) is slidably connected inside the airbag cleaning block (501), wherein a threaded guide rail (503) is fixedly mounted on a side of the push block (505) away from the airbag cleaning block (501), wherein a placement long rod (506) is fixedly connected outside the inner shaft rotating rod (304), wherein a piston rotating rod (507) is rotatably connected inside the placement long rod (506), and wherein the piston rotating rod (507) is slidably mounted on the threaded guide rail (503).

3. A screw conveyor according to claim 2, characterized in that: A telescopic rod (502) is fixedly mounted on the side of the push block (505) away from the airbag cleaning block (501); a side of the telescopic rod (502) away from the push block (505) is fixedly mounted on the inner wall of the outer shaft conveying pipe (102); and a first spring (508) is fixedly mounted inside the telescopic rod (502).

4. A screw conveyor according to claim 3, characterized in that: A foldable raised airbag block (504) arranged in an annular shape is fixedly installed between the push block (505) and the airbag cleaning block (501), and a threaded airbag pattern is arranged on the outer side of the foldable raised airbag block (504).

5. A screw conveyor according to claim 4, characterized in that: An output groove is provided on a side of the outer shaft conveying pipeline (102) close to the tail processing block (105), an input pipeline (103) is fixedly installed at the top of the outer shaft conveying pipeline (102), and the number of the piston cleaning mechanisms (5) is two groups, and the two groups of the piston cleaning mechanisms (5) are respectively arranged below the input pipeline (103) and above the output groove.

6. A screw conveyor according to claim 5, characterized in that: An external constant temperature component (2) is installed on the outer side of the threaded conveying support component (1); The external thermostatic component (2) comprises a hollow guide ring block (201) with a built-in cavity, and four arc-shaped ducts (202) are fixedly installed on the outside of the hollow guide ring block (201). The four arc-shaped ducts (202), the hollow guide ring block (201) and the external shaft conveying pipeline (102) are arranged in a fixed installation state via a connecting guide block (104).

7. A screw conveyor according to claim 6, characterized in that: The thread transmission component (3) further comprises an elongated gear (306), wherein the elongated gear (306) is fixedly mounted on the outside of the inner shaft rotating rod (304), and the outside of the elongated gear (306) is meshingly connected with a built-in ring gear block (305).

8. A screw conveyor according to claim 7, characterized in that: The external thermostatic assembly (2) further comprises four first gears (203), the four first gears (203) being rotatably mounted on the same number of arc-shaped conduits (202), the four first gears (203) being meshingly connected to the built-in ring gear block (305), an auxiliary rotating shaft (204) being fixedly connected inside the first gear (203), and a threaded blade (205) being fixedly mounted on the auxiliary rotating shaft (204) located inside the arc-shaped conduit (202).

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