An intermediate support device convenient for maintenance

Abstract

The present invention belongs to the technical field of screw conveying mechanisms, and particularly relates to an intermediate support device that is easy to maintain, which solves the problem of inconvenience in maintaining the internal screw shaft and high maintenance costs. The intermediate support device that is easy to maintain is used to connect two sections of screw conveying mechanisms, including a support tube body formed by at least two arc-shaped split parts that can be detachably assembled, an intermediate screw rod is provided in the support tube body, the intermediate screw rod includes a support shaft and at least two spiral sheet assemblies circumferentially distributed on the support shaft, a spiral sheet positioning structure is provided between the spiral sheet assembly and the support shaft, and the spiral sheet assemblies are detachably connected to each other. The effect of convenient maintenance and disassembly of the internal screw shaft is achieved, with high maintenance convenience and low energy consumption and cost.

Description

Technical Field

[0001] The invention belongs to the technical field of screw conveying mechanisms, and in particular relates to an intermediate supporting device which is easy to maintain. Background Art

[0002] The screw coal unloader is mainly composed of a gantry assembly, a rotary bearing assembly, a horizontal screw assembly, and a vertical screw assembly. Unloading process: The reclaiming head with three inlets rotates and extends into the coal, taking the loose coal around it into the reclaiming head cavity and compacting it to a certain extent. At the same time, the vertical screw shaft rotates at a reasonable speed to lift the coal to the upper screw end of the vertical conveyor. Its discharge port is connected to the horizontal screw conveyor. After entering the horizontal conveyor, the coal is transported to the unloading device inside the rotary bearing, and then the coal is transported to the belt conveyor through the unloading trolley inside the gantry along the inclined chute inside the rotary bearing by its own weight. The entire material conveying process is sealed to ensure that no dust escapes from the material.

[0003] The key technical difficulty of the screw coal unloader lies in the screw conveying device, and the technical difficulty in the screw conveying device is the intermediate support device; the traditional OD intermediate support device has an integral supporting shell. If the Hafu blades inside it are worn or need to be replaced, it is often necessary to pull out the entire screw shaft of the screw conveying device, remove the material head, and remove the flange bolts on the top of the long screw shaft. At the customer's site, a larger maintenance and replacement space is required, and the use of cranes, forklifts and other large-scale engineering equipment is required. It is not convenient to realize point-to-point maintenance and blade replacement, and there are problems of high energy consumption, manpower, time, space and maintenance costs. Summary of the invention

[0004] The purpose of the present invention is to address the above-mentioned problems in the prior art and to provide an intermediate support device that is easy to maintain.

[0005] In order to achieve the purpose of the invention, the following technical solutions can be used:

[0006] An intermediate support device that is easy to maintain is used to connect two sections of a spiral conveying mechanism, including a support tube body formed by at least two arc-shaped split parts that can be detachably assembled. An intermediate screw is arranged in the support tube body. The intermediate screw includes a support shaft and at least two spiral sheet assemblies circumferentially distributed on the support shaft. A spiral sheet positioning structure is provided between the spiral sheet assembly and the support shaft. The spiral sheet assemblies are detachably fixedly connected.

[0007] The intermediate support device of the present invention is arranged between two sections of the spiral conveying mechanism, and plays the role of connecting the two. The spiral conveying mechanism includes a conveying pipe and a conveying screw rotatably connected to the conveying pipe. The intermediate support device includes a support pipe body and an intermediate screw inside thereof, wherein the support pipe body is used to connect the upper and lower conveying pipes, and the intermediate screw is used to connect the upper and lower conveying screws. The support pipe body is formed by a plurality of arc-shaped split parts connected by docking, and the docking is detachable. When maintenance is required, part of the arc-shaped split parts can be removed to perform corresponding operations on the internal intermediate screw, such as replacing the spiral piece assembly of the intermediate screw. The flexibility of disassembly and maintenance is increased. The middle screw is composed of a support shaft and a spiral sheet assembly. The support shaft mainly serves to connect the conveying screw. The spiral sheet assembly is arranged on the support shaft and docked with the spiral parts of the upper and lower conveying screws to ensure the smooth transportation of materials. The spiral sheet positioning structure is used to achieve the axial and circumferential positioning effect between the spiral sheet assembly and the support shaft, ensuring the axial limitation and rotation synchronization of the spiral sheet assembly and the support shaft. In addition, multiple groups of spiral sheet assemblies are arranged, and they are detachably connected to each other, which improves the flexibility of disassembly and assembly, and is convenient for disassembly and assembly and maintenance after the partial arc-shaped split is dismantled.

[0008] In the above-mentioned intermediate support device which is easy to maintain, the spiral blade assembly includes an arc-shaped mounting portion and a spiral half blade fixed to the outside of the mounting portion, the mounting portion is enclosed on the support shaft, and the inner side walls at the upper and lower ends are in contact with the outer side wall of the second flange portion at the end of the support shaft; T-shaped spiral blade fixing through holes and spiral blade fixing screw holes are provided at both circumferential ends of the mounting portion, and the spiral blade fixing bolts pass through the spiral blade fixing through holes and are connected with the spiral blade fixing screw holes.

[0009] The arc-shaped mounting parts of multiple spiral blade assemblies are butt-jointed and spliced ​​to form a tubular structure sleeved on the support shaft. The spiral half blades are arranged on the mounting part for conveying materials. The adjacent mounting parts are detachably fixed by spiral blade fixing bolts. The inner side wall of the mounting part is supported by the side wall of the second flange part, thereby ensuring the stable fixation of the mounting part and avoiding the generation of a gap between the mounting part and the second flange part to prevent the entry of materials. Furthermore, a corresponding sealing ring can be arranged between the mounting part and the second flange part to further improve the sealing effect.

[0010] In the above-mentioned intermediate support device which is easy to maintain, the spiral blade positioning structure includes a positioning protrusion and a positioning groove which is respectively located on the inner side of the mounting portion and the outer side of the support shaft, and the positioning protrusion is embedded in the positioning groove; the inner side of the mounting portion is provided with a circumferentially extending arc-shaped protrusion, the inner side wall of the arc-shaped protrusion is in contact with the outer side wall of the support shaft, and the positioning groove is provided on the inner side wall; the spiral blade fixing through hole and the spiral blade fixing screw hole are penetrated from the circumferential end surface of the mounting portion and / or the arc-shaped protrusion.

[0011] An arc-shaped convex body is provided on the inner side of the mounting portion, that is, the vertical cross-section of the mounting portion is convex-shaped, the two ends of the mounting portion are in contact with the second flange portion, and a positioning convex body and a positioning groove are provided between the inner side surface of the arc-shaped convex body and the support shaft. The positioning convex body is embedded in the positioning groove to achieve axial and circumferential limiting, thereby ensuring the stable installation of the spiral blade assembly and synchronization with the rotation of the support shaft. Furthermore, an elastic sealing pad layer is provided between adjacent spiral blade assemblies to prevent materials from entering the mounting portion.

[0012] As an optimization, a clearance space is provided between the arc-shaped convex body and the second flange portion, so as to make way for the bolt head on the second flange portion.

[0013] The height of the arc-shaped convex body is smaller than the spacing between the second flange parts, and the clearance space between them is used to make way for the bolt heads on the second flange parts, thereby ensuring smooth docking of the second flange parts and the connecting flange of the conveying screw.

[0014] In the above-mentioned intermediate support device which is easy to maintain, first flange parts are provided at both ends of the arc-shaped split body, and an inspection window located between the two first flange parts is opened through the side surface, and a cover is detachably provided on the inspection window, and a plurality of compensation plates are padded between the cover and the arc-shaped split body for making the arc-shaped inner side surface of the cover flush with the arc-shaped inner side surface of the arc-shaped split body, and a strip-shaped third flange part is provided at the circumferential end of the arc-shaped split body, and the third flange parts of adjacent arc-shaped split bodies are fixed by bolts.

[0015] The first flange portion at the end of the arc-shaped split is used for connection and fixation with the conveying pipe, and the third flange portion at the circumferential end is used for connection and fixation between adjacent arc-shaped splits. The inspection window is radially arranged to observe the internal situation. The inspection window is closed by the cover to ensure normal material transportation. The cover and the arc-shaped split are detachable and fixed, and have flexible disassembly and assembly. Since there are inevitable errors in the thickness of the cover and the arc-shaped split during processing, the cover is processed relatively thick. A compensation plate is specially arranged between the cover and the arc-shaped split to compensate for the thickness difference between them. By setting a corresponding number of compensation plates, the inner side surface of the cover and the inner side surface of the arc-shaped split are made flush to ensure concentricity with the center screw. Of course, the compensation plate is located between the outer side of the inspection window and the inner side surface of the outer periphery of the cover, which is equivalent to a gasket, and is simple and flexible to set up.

[0016] In the above-mentioned intermediate support device which is easy to maintain, the cover is an arc-shaped body adapted to the arc-shaped split, and an engaging protrusion matching the inspection window is arranged on the inner side, the engaging protrusion is embedded in the inspection window, and the inner side surface of the engaging protrusion is flush with the inner side surface of the arc-shaped split; the arc-shaped split is provided with a cover fixing screw hole, the cover is provided with a corresponding cover fixing hole, the cover fixing bolt passes through the cover fixing hole and is screwed and fixed with the cover fixing screw hole; the outer wall of the arc-shaped split is radially provided with a positioning rod, the cover is provided with a positioning hole, and the positioning rod passes through the positioning hole; the compensation plate is penetrated by a plurality of makeshift holes corresponding to the cover fixing bolts and the positioning rods.

[0017] The cross-section of the cover is a convex shape, and an engaging convex body is provided in the middle part of the inner side surface, and the engaging convex body is embedded in the inspection window. The cover and the arc-shaped split body are fixed by the cover fixing bolts, and have flexible detachability. The positioning rod on the arc-shaped split body passes through the positioning hole of the cover, which has a positioning effect and is easy to install. The makeshift hole on the compensation plate is used to make way for the cover fixing bolts and the positioning rod, and also realizes the stable installation of the compensation plate.

[0018] As an optimization, a handrail rod is provided on the outer side surface of the cover, handrail connecting holes are provided at both ends of the handrail rod, and the handrail fixing bolts pass through the handrail connecting holes and are screwed to the cover.

[0019] The handrail rod serves as a force-bearing part for taking the cover, which facilitates the taking, placing and disassembling of the cover. It is fixed by the handrail fixing bolts and has flexible detachability.

[0020] In the above-mentioned intermediate support device that is easy to maintain, a thickness detection component is provided on the support tube body and / or the compensation plate, and the thickness detection component is connected to the control circuit board, and the control circuit board is connected to a wireless communication module, a rechargeable battery and a power generation mechanism; the power generation mechanism includes a first magnet arranged on the spiral blade assembly of the intermediate screw, and the arc-shaped split, the intermediate screw and the spiral blade assembly are made of aluminum alloy material, and the support tube body is provided with a polytetrafluoroethylene bearing that can rotate circumferentially around the center of the support tube body and can be circumferentially spliced, the polytetrafluoroethylene bearing is axially limited, and the inner side of the polytetrafluoroethylene bearing is provided with a second magnet located at the same horizontal height as the first magnet, and the second magnet is connected to the outer ring of the polytetrafluoroethylene bearing, and the outer ring is connected to the generator through a transmission mechanism.

[0021] The thickness detection component is used to detect the thickness of the cover and the thickness of the arc-shaped split, and transmit the detection data to the control circuit board. The control circuit board realizes data interaction with the control end through the wireless communication module, so as to facilitate the adjustment of the number of compensation plates to achieve the flushness of the inner side surface of the cover and the inner side surface of the arc-shaped split, improve the concentricity with the middle screw, and avoid excessive wear between the spiral blade assembly of the middle screw and the inner side surface of the cover. The power generation mechanism and rechargeable battery are used to realize the generation and storage of power required by the thickness detection component, the control circuit board and the wireless communication module. Among them, a polytetrafluoroethylene bearing is provided on the supporting tube body, and the outer ring of the polytetrafluoroethylene bearing can rotate freely. A second magnet and a first magnet are respectively provided on the outer ring and the spiral blade assembly. Through the magnetic force between them, the spiral blade assembly drives the outer ring of the polytetrafluoroethylene bearing to rotate. The outer ring is connected to the generator through a transmission mechanism to achieve power generation, reducing the dependence on external power supply. In addition, the arc-shaped split, the intermediate screw, the spiral blade assembly and the polytetrafluoroethylene bearing are all made of materials that will not generate magnetic force with the magnet, ensuring that the first magnet drives the second magnet to rotate. Moreover, the polytetrafluoroethylene bearing is a spliced ​​structure with flexible detachability. Among them, the wireless communication module includes one or more of Bluetooth, wifi, and mobile communication module (4G\5G).

[0022] As an optimization, a wear-resistant layer is provided on the outer periphery of the spiral blade assembly, and a magnet fixing groove is radially opened at the radial outer end, and the first magnet is fixed in the magnet fixing groove.

[0023] The wear-resistant layer is in contact with the inner side surface of the arc-shaped split body and the inner side surface of the cover to ensure smooth transportation of materials, and the wear-resistant property increases the service life. A magnet fixing groove is set on the spiral blade assembly for installing the first magnet, which is convenient for disassembly and assembly. The fixing groove is set at the radial outer end to minimize the distance with the second magnet on the outer ring of the polytetrafluoroethylene bearing, thereby increasing the magnetic force between them and ensuring that the first magnet can drive the second magnet to move.

[0024] In the above-mentioned intermediate support device which is easy to maintain, each arc-shaped split body is provided with two arc-shaped reinforcing ribs which are axially distributed and extend circumferentially between the compensation plate and the first flange above, and an arc-shaped groove is formed between the two arc-shaped reinforcing ribs. The arc-shaped reinforcing ribs, the arc-shaped grooves and the end faces of the arc-shaped split body are located on the same plane, and all the arc-shaped grooves are connected end to end to form an annular groove, in which the polytetrafluoroethylene bearing is provided, and the inner ring of the polytetrafluoroethylene bearing is fixed in the arc-shaped groove, and the annular groove is sealed by a plurality of circumferentially distributed and U-shaped arc-shaped sealing plates, and the arc-shaped sealing plates are elastically clamped with the arc-shaped reinforcing ribs, and the outer ring is connected to the generator through a transmission mechanism, and the transmission mechanism passes through one of the arc-shaped sealing plates.

[0025] Two arc-shaped reinforcement ribs are arranged on the arc-shaped split body, and an arc-shaped groove is formed between the two arc-shaped reinforcement ribs. The arc-shaped grooves of the two arc-shaped split bodies are assembled into an annular groove, which is used for installing the polytetrafluoroethylene bearing. The inner ring of the polytetrafluoroethylene bearing is fixed in the arc-shaped groove, and the arc-shaped sealing plate plays a sealing role to prevent the entry of external dust and debris to affect the normal rotation of the polytetrafluoroethylene bearing. It is elastically connected with the arc-shaped reinforcement ribs and has flexible detachability. Specifically, the clamping can be realized by the elastic convex tenon and the clamping groove arranged on the opposite side of the arc-shaped sealing plate and / or the arc-shaped reinforcement ribs. The elastic convex tenon is clamped in the clamping groove to realize clamping and fixing. The transmission mechanism is penetrated by the arc-shaped sealing plate to realize the transmission connection between the outer ring and the generator.

[0026] As an optimization, a sealing ring is provided between the arc-shaped sealing plate and the arc-shaped reinforcing rib to further improve the sealing effect. The end and end of the arc-shaped sealing plate are butt-jointed through a male and female structure, and a sealing ring is provided between the male and female structures.

[0027] The male and female structure makes the connection between the arc-shaped sealing plates flexible and removable, and the sealing rings between the arc-shaped sealing plates and between the arc-shaped sealing plates and the arc-shaped reinforcing ribs further improve the sealing performance and prevent external debris from entering the arc-shaped sealing plates. The male and female structure is an existing technology and will not be elaborated in detail.

[0028] In the above-mentioned intermediate support device which is easy to maintain, the transmission mechanism includes an external gear arranged on the outer ring, a driven gear matching with the external gear is provided on the head shaft of the generator, the driven gear passes through an arc-shaped sealing plate, the generator and the driven gear are arranged in a module box, the module box is provided with a gear passage for the driven gear to pass through the external gear matching with the external gear, a first heat dissipation impeller is provided at the bottom of the generator, the first heat dissipation impeller is fixed on the tail shaft of the generator, the module box is provided with a first oblique air inlet inclined downward, and at least one first air outlet is connected to the arc-shaped groove.

[0029] The transmission mechanism is realized by an external gear whose teeth are circumferentially distributed on the outer side of the outer ring and a driven gear on the generator head shaft, and has a stable transmission effect. The generator and the driven gear are arranged in a module box, and the module box has a protective function. A first heat dissipation impeller is arranged on the tail shaft of the generator, and the tail shaft and the head shaft rotate synchronously. The rotation of the first heat dissipation impeller promotes air flow. Air enters from the first oblique air inlet and exits from the first air outlet. Heat is taken away during the circulation process, which has the effect of heat dissipation and cooling. Moreover, the first oblique air inlet is inclined downward, which reduces the possibility of external dust, debris and water entering.

[0030] In the above-mentioned intermediate support device that is easy to maintain, the module box includes a box body with an outer opening, the inner side of the box body is arranged in a slot of the vertical reinforcing rib through an insert body, the vertical reinforcing rib is vertically extended and arranged on the outer side wall of the arc-shaped split body, and is located between the arc-shaped reinforcing rib on the lower side and the first flange portion on the lower side, the insert body is fixed to the vertical reinforcing rib by a plurality of bolts, the box body is provided with a first mounting groove, a second mounting groove and a third mounting groove distributed from top to bottom and separated from each other, the first mounting groove, the second mounting groove and the third mounting groove are closed by a box cover, the first oblique air inlet is arranged on the box cover and is located at the bottom of the first mounting groove, the generator and the driven gear are detachably installed in the first mounting groove, and the gear port is connected to the first mounting groove, and the gear port abuts against the arc The box cover is provided with a second air inlet and a second air outlet located at the bottom and the top of the second mounting groove; a detector body of a thickness detection assembly is provided in the third mounting groove; the detector body is connected to the control circuit board through a second line connecting pipeline; the detector body is connected to a detection probe; the detection probe is connected to a support tube body and / or a compensation plate through a cable passing through the box body; an antenna connected to the control circuit board is provided at the bottom of the box body.

[0031] The insert of the box body is inserted into the slot of the vertical reinforcing rib and fixed by bolts. The installation is stable and flexible. The internal space of the box body is divided into the first installation slot, the second installation slot and the third installation slot from top to bottom, which are used to respectively set the power generation and driven gears of the power generation mechanism, the control circuit board and the rechargeable battery and the detector body. Each installation slot is relatively independent to reduce the interference between each other. The box body is closed by a box cover to cut off the connection between each installation slot and the outside world, protect the mechanism in the slot, and the closure is detachable and easy to disassemble and assemble. The tail shaft of the generator penetrates into the second installation slot and is connected to the second heat dissipation impeller. When the power generation is working, the second heat dissipation impeller rotates, and air flows in from the second air inlet and flows out from the second air outlet. The circulation process takes away the heat in the second installation slot, especially realizing the cooling and heat dissipation of the rechargeable battery. In addition, an oil seal is provided between the tail shaft and the second installation slot to ensure the independence of the first installation slot and the second installation slot. The detection probe is connected to the support tube body and the compensation plate to detect the thickness of the support tube body and the cover. An antenna is provided at the bottom of the box body, which is connected to the control circuit board and is used to receive and send signals to ensure the smooth operation of the wireless communication module.

[0032] As an optimization, a heat insulating cushion layer is provided between the control circuit board and the rechargeable battery and the box body to prevent the temperature of the rechargeable battery from being too high and improve safety.

[0033] As an optimization, the detector body includes an ultrasonic detector, the detection probe is an ultrasonic detection probe, the ultrasonic detector is connected to the ultrasonic detection probe by a cable; the ultrasonic detection probe is fixed by a screw. The thickness detection is achieved by the ultrasonic detector and the ultrasonic detection probe through ultrasonic waves, which has a good detection effect. The specific structure and working principle of the ultrasonic detector and the ultrasonic detection probe are common knowledge and will not be elaborated in detail.

[0034] As another optimization, the detector body includes a camera module, and the detection probe includes a camera. The camera module is connected to the camera through a cable. The camera is screwed into the camera hole of the arc-shaped split body and sealed by a sealing ring. The outer end of the camera is high and the inner end is low, and the inner end is located in the middle of the arc-shaped split body. Thickness detection can also be achieved by the camera through image acquisition and analysis. The camera is high outside and low inside, that is, opposite to the direction of material transportation, which reduces the possibility of material entering and compacting in the camera hole. The sealing ring between them further prevents material from entering. The specific structure and working principle of the camera and the camera module are common knowledge and will not be elaborated in detail.

[0035] In the above-mentioned intermediate support device that is easy to maintain, the polytetrafluoroethylene bearing includes a spliced ​​inner ring and a spliced ​​outer ring, a spliced ​​retaining frame is provided between the spliced ​​inner ring and the spliced ​​outer ring, and a ball is provided on the spliced ​​retaining frame. The spliced ​​inner ring is inserted into the extension section groove of the arc-shaped reinforcement rib through an extension section, and a screw for fixing to the arc-shaped reinforcement rib is obliquely inserted on the extension section. A radially arranged magnet fixing plate is provided on the top of the spliced ​​outer ring, and the magnet fixing plate is connected to the spliced ​​outer ring as a whole, and the second magnet is fixed on the magnet fixing plate.

[0036] The spliced ​​inner ring is spliced ​​into an inner ring, and the spliced ​​outer ring is spliced ​​into an outer ring. A ball is provided between the outer ring and the inner ring. The ball is arranged on the spliced ​​retaining frame to ensure the stable rolling of the ball between the outer ring and the inner ring. The extension section of the spliced ​​inner ring is inserted in the extension section groove, which has a positioning effect. The screw is obliquely inserted into the arc-shaped reinforcement rib and the extension section to realize the detachable fixation of the spliced ​​inner ring and the arc-shaped reinforcement rib. Of course, the screw is made of aluminum or stainless steel and does not have a magnetic effect on the magnet. A magnet fixing plate is provided on the spliced ​​outer ring. The magnet fixing plate is located on the axial side of the spliced ​​inner ring away from the extension section. The magnet fixing plate is used to fix the second magnet. The fixation can be achieved by a screw that does not generate a magnetic effect on the magnet. The second magnet is located on the radial inner side of the spliced ​​inner ring, that is, close to the bottom of the arc groove, which reduces the distance with the first magnet and ensures that there is sufficient magnetic attraction between the first magnet and the second magnet.

[0037] As an optimization, the spliced ​​inner ring includes two arcuate inner rings, and the two arcuate inner rings are fixed at their heads and tails by a first 8-shaped card body, and the two ends of the first 8-shaped card body are respectively clamped in the first conical grooves at the two ends of the arcuate inner ring, and the first conical groove does not radially penetrate the arcuate inner ring, and the first conical groove and the first 8-shaped card body are fixed by screws; the spliced ​​outer ring includes two arcuate outer rings, and the two arcuate outer rings are fixed at their heads and tails by a second 8-shaped card body, and the two ends of the second 8-shaped card body are respectively clamped in the second conical grooves at the two ends of the arcuate outer ring, and the second conical groove does not radially penetrate the arcuate outer ring, and the second conical groove and the second 8-shaped card body are fixed by screws; the spliced ​​retaining frame includes two arcuate retaining frames, and the two arcuate retaining frames are fixed at their heads and tails by a third 8-shaped card body, and the two ends of the third 8-shaped card body are respectively clamped in the third conical grooves at the two ends of the arcuate retaining frame, and the third conical groove does not radially penetrate the arcuate retaining frame, and the third conical groove and the third 8-shaped card body are fixed by screws.

[0038] The first 8-shaped clamping body is clamped in the first cone groove at the end of the arc-shaped inner ring to form a mortise and tenon type clamping connection. At the same time, the screw passes through the first 8-shaped clamping body and is connected to the bottom of the first cone groove to achieve the effect of fixing and connecting the adjacent arc-shaped inner rings. The connection is stable and has flexible detachability. The splicing outer ring and the splicing retainer are similar and will not be elaborated.

[0039] Compared with the prior art, the present invention mainly has the following advantages:

[0040] 1. The supporting tube body is composed of multiple arc-shaped parts that can be detachably connected and joined. When maintenance is required, part of the arc-shaped parts can be removed to perform corresponding operations on the internal intermediate screw. In addition, multiple groups of spiral sheet assemblies are provided, and they can be detachably connected to each other, which improves the flexibility of disassembly and maintenance.

[0041] 2. An arc-shaped convex body is provided on the inner side of the installation part, and a positioning convex body and a positioning groove are provided between the inner side of the arc-shaped convex body and the support shaft. The positioning convex body is embedded in the positioning groove to achieve axial and circumferential limiting, ensuring the stable installation of the spiral blade assembly and synchronous rotation with the support shaft.

[0042] 3. The inspection window is radially penetrated for observing the internal situation. The cover and the arc-shaped split body are detachable and fixed. A compensation plate is specially arranged between the cover and the arc-shaped split body to compensate for the thickness difference between them and ensure the concentricity of the inner side of the cover and the center screw.

[0043] 4. The thickness detection component is used to detect the thickness of the cover and the thickness of the arc-shaped split body, so as to facilitate the adjustment of the number of compensation plates to achieve the flushness of the inner side surface of the cover and the inner side surface of the arc-shaped split body.

[0044] 5. A polytetrafluoroethylene bearing is provided on the supporting tube body, and the outer ring of the polytetrafluoroethylene bearing can rotate freely. A second magnet and a first magnet are respectively provided on the outer ring and the spiral sheet assembly. Through the magnetic force between them, the spiral sheet assembly drives the outer ring of the polytetrafluoroethylene bearing to rotate. The outer ring is connected to the generator through a transmission mechanism to realize power generation, thereby reducing the dependence on an external power source.

[0045] 6. The arc-shaped split, the middle screw, the spiral sheet assembly and the polytetrafluoroethylene bearing are all made of materials that will not generate magnetic force with the magnet, ensuring that the first magnet can smoothly drive the second magnet to rotate. Moreover, the polytetrafluoroethylene bearing is a spliced ​​structure with flexible detachability.

[0046] 7. Two arc-shaped reinforcing ribs are provided on the arc-shaped split body, and an arc-shaped groove is formed between the two arc-shaped reinforcing ribs for installing the polytetrafluoroethylene bearing. The inner ring of the polytetrafluoroethylene bearing is fixed in the arc-shaped groove, and the arc-shaped sealing plate plays a sealing role to prevent external dust and debris from entering.

[0047] 8. The generator and the driven gear are arranged in a module box, which has a protective function. A first heat dissipation impeller is arranged on the tail shaft of the generator. The tail shaft and the head shaft rotate synchronously. The rotation of the first heat dissipation impeller promotes air flow. The air enters from the first oblique air inlet and exits from the first air outlet, which has the effect of heat dissipation and cooling. Moreover, the first oblique air inlet is inclined downward, which reduces the possibility of external dust, debris and water entering.

[0048] 9. The internal space of the box body is divided into the first installation slot, the second installation slot and the second installation slot from top to bottom. Each installation slot is relatively independent to reduce the interference between each other. The tail shaft of the generator penetrates into the second installation slot and is connected to the second heat dissipation impeller to achieve cooling and heat dissipation of the rechargeable battery.

[0049] 10. The extension section of the spliced ​​inner ring is inserted into the extension section groove, which has a positioning effect. The screws are obliquely inserted into the arc-shaped reinforcement rib and the extension section to achieve detachable fixation of the spliced ​​inner ring and the arc-shaped reinforcement rib. The magnet fixing plate is used to fix the second magnet. The second magnet is located on the radial inner side of the spliced ​​inner ring, which reduces the distance with the first magnet and ensures sufficient magnetic attraction between the first magnet and the second magnet. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 is a front view schematic diagram provided by the present invention (Example 1);

[0051] Figure 2 It is a cross-sectional schematic diagram provided by the present invention;

[0052] Figure 3 yes Figure 2 A magnified detail of the center point A;

[0053] Figure 4 It is a schematic diagram of the cooperation between the spiral sheet assembly and the support shaft provided by the present invention;

[0054] Figure 5 It is a schematic cross-sectional view provided by the present invention (the cross-sectional view passes vertically through the positioning rod and the positioning hole);

[0055] Figure 6 is a horizontal cross-sectional view of the intermediate screw provided by the present invention;

[0056] Figure 7 is a schematic structural diagram of the sealing cover provided by the present invention;

[0057] Figure 8 It is a schematic diagram of the spliced ​​inner rings provided by the present invention being spliced ​​with each other;

[0058] Fig. 9 It is a schematic diagram of the spliced ​​outer rings provided by the present invention being spliced ​​together;

[0059] Fig.10 is a schematic diagram of the splicing retainers provided by the present invention being spliced ​​together;

[0060] Fig.11 is a horizontal cross-sectional schematic diagram of a polytetrafluoroethylene bearing provided by the present invention;

[0061] Fig.12 yes Fig.11 A magnified view of the detail at B in the middle;

[0062] Fig.13 It is a front view schematic diagram provided by the present invention (Example 2).

[0063] In the figure, arc-shaped split body 1, support tube body 2, intermediate screw 3, support shaft 4, spiral piece assembly 5, spiral piece positioning structure 6, mounting portion 7, half piece 8, second flange portion 9, spiral piece fixing through hole 10, spiral piece fixing screw hole 11, positioning convex body 12, positioning groove 13, arc-shaped convex body 14, make way space 15, first flange portion 16, inspection window 17, cover 18, compensation plate 19, chimeric convex body 20, cover fixing screw hole 21, cover fixing hole 22, positioning rod 23, fixing Position hole 24, clearance hole 25, handrail rod 26, handrail fixing bolt 27, thickness detection component 28, control circuit board 29, wireless communication module 30, rechargeable battery 31, power generation mechanism 32, first magnet 33, polytetrafluoroethylene bearing 34, second magnet 35, outer ring 36, transmission mechanism 37, generator 38, wear-resistant layer 39, magnet fixing groove 40, ball 41, arc-shaped reinforcing rib 42, arc-shaped groove 43, annular groove 44, inner ring 45, arc-shaped sealing plate 46, elastic tenon 47 , external gear 48, head shaft 49, driven gear 50, module box 51, gear port 52, first heat dissipation impeller 53, tail shaft 54, first oblique air inlet 55, first air outlet 56, box body 57, insert body 58, vertical reinforcing rib 59, slot 60, first mounting slot 61, second mounting slot 62, third mounting slot 63, box cover 64, first line connecting pipeline 65, second heat dissipation impeller 66, oil seal 67, second air inlet 68, second air outlet 69, detector body 70 , the second line connecting pipeline 71, the ultrasonic detection probe 72, the antenna 73, the thermal insulation pad 74, the camera 75, the spliced ​​inner ring 78, the spliced ​​outer ring 79, the spliced ​​retaining frame 80, the extension section 81, the extension section groove 82, the magnet fixing plate 83, the arc-shaped inner ring 84, the first 8-shaped card body 85, the first conical groove 86, the second 8-shaped card body 87, the second conical groove 88, the arc-shaped retaining frame 89, the third 8-shaped card body 90, the third conical groove 91, the arc-shaped outer ring 92, and the third flange portion 93. DETAILED DESCRIPTION

[0064] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0065] Example 1

[0066] Specific implementation examples Figure 1-12 As shown, the intermediate support device which is easy to maintain is used to connect two sections of spiral conveying mechanisms, including a support tube body 2 which is detachably assembled from two arc-shaped split bodies 1, an intermediate screw 3 is arranged in the support tube body 2, the intermediate screw 3 includes a support shaft 4 and two spiral sheet assemblies 5 circumferentially distributed on the support shaft 4, a spiral sheet positioning structure 6 is arranged between the spiral sheet assembly 5 and the support shaft 4, and the spiral sheet assemblies 5 are detachably fixedly connected.

[0067] Specifically, the intermediate support device is arranged between the two sections of the spiral conveying mechanism to connect the two. The spiral conveying mechanism includes a conveying pipe and a conveying screw rotatably connected to the conveying pipe. The intermediate support device includes a support tube body 2 and an intermediate screw 3 inside thereof. The support tube body 2 is used to connect the upper and lower conveying tubes, and the intermediate screw 3 is used to connect the upper and lower conveying screws. The support tube body 2 is formed by two arc-shaped split bodies 1 connected together, and the connection is detachable. When maintenance is required, part of the arc-shaped split body 1 can be removed to perform corresponding operations on the internal intermediate screw 3, which increases the convenience of disassembly and maintenance. Flexibility, the middle screw 3 is composed of a support shaft 4 and a spiral sheet assembly 5. The support shaft 4 mainly serves to connect the conveying screw. The spiral sheet assembly 5 is arranged on the support shaft 4, and is docked with the spiral parts of the upper and lower conveying screws to ensure the smooth transportation of materials. The spiral sheet positioning structure 6 is used to achieve the axial and circumferential positioning effect between the spiral sheet assembly 5 and the support shaft 4, ensuring the axial limitation and rotation synchronization of the spiral sheet assembly 5 and the support shaft 4. In addition, the spiral sheet assembly 5 is provided with multiple groups, and they are detachably connected to each other, which improves the flexibility of disassembly and assembly, and is convenient for disassembly and assembly and maintenance after the partial arc-shaped split 1 is dismantled.

[0068] like Figure 4 , 6 As shown, the spiral piece assembly 5 includes an arc-shaped mounting portion 7 and a spiral half piece 8 fixed to the outside of the mounting portion 7. The mounting portion 7 is enclosed on the support shaft 4, and the inner side walls at the upper and lower ends are in contact with the outer side walls of the second flange portion 9 at the end of the support shaft 4; T-shaped spiral piece fixing through holes 10 and spiral piece fixing screw holes 11 are provided at both ends of the mounting portion 7 in the circumferential direction, and the spiral piece fixing bolts pass through the spiral piece fixing through holes 10 and are connected to the spiral piece fixing screw holes 11. The spiral piece positioning structure 6 includes a positioning convex body 12 and a positioning groove 13 respectively located on the inner side of the mounting portion 7 and the outer side of the support shaft 4, and the positioning convex body 12 is embedded in the positioning groove 13; a circumferentially extending arc-shaped convex body 14 is provided on the inner side of the mounting portion 7, and the inner side wall of the arc-shaped convex body 14 is in contact with the outer side wall of the support shaft 4, and the positioning groove 13 is provided on the inner side wall; the spiral piece fixing through holes 10 and the spiral piece fixing screw holes 11 pass through the mounting portion 7 and the arc-shaped convex body 14 from the circumferential end surface.

[0069] Specifically, the arc-shaped mounting parts 7 of the two spiral blade assemblies 5 are butt-jointed to form a tubular structure sleeved on the support shaft 4. The spiral half blade 8 is arranged on the mounting part 7 for conveying materials. The adjacent mounting parts 7 are detachably fixed by spiral blade fixing bolts. The inner side wall of the mounting part 7 is supported by the side wall of the second flange part 9, which ensures the stable fixation of the mounting part 7 and avoids the generation of a gap between the mounting part 7 and the second flange part 9 to prevent the entry of materials. Furthermore, a corresponding sealing ring can be arranged between the mounting part 7 and the second flange part 9 to further improve the sealing effect. An arc-shaped protrusion 14 is provided on the inner side of the mounting portion 7, that is, the vertical cross-section of the mounting portion 7 is a convex shape, and the two ends of the mounting portion 7 are in contact with the second flange portion 9. A positioning protrusion 12 and a positioning groove 13 are provided between the inner side surface of the arc-shaped protrusion 14 and the support shaft 4. The positioning protrusion 12 is embedded in the positioning groove 13 to achieve axial and circumferential limiting, thereby ensuring the stable installation of the spiral blade assembly 5 and the synchronization of rotation with the support shaft 4. Furthermore, an elastic sealing pad layer is provided between adjacent spiral blade assemblies 5 to prevent materials from entering the mounting portion 7.

[0070] As an optimization, a clearance space 15 is provided between the arc-shaped protrusion 14 and the second flange portion 9. The height of the arc-shaped protrusion 14 is smaller than the spacing between the second flange portions 9. The clearance space 15 is used to make way for the bolt heads on the second flange portion 9 to ensure smooth docking of the second flange portion 9 and the connecting flange of the conveying screw.

[0071] like Figure 5 , 7 As shown, first flange portions 16 are provided at both ends of the arc-shaped split body 1, and an inspection window 17 located between the two first flange portions 16 is opened through the side surface, and a cover 18 is detachably provided on the inspection window 17, and a plurality of compensation plates 19 are padded between the cover 18 and the arc-shaped split body 1 to make the arc-shaped inner side surface of the cover 18 flush with the arc-shaped inner side surface of the arc-shaped split body 1, and a strip-shaped third flange portion 93 is provided at the circumferential end of the arc-shaped split body 1, and the third flange portions 93 of adjacent arc-shaped split bodies 93 are fixed by bolts. The cover 18 is an arc-shaped body adapted to the arc-shaped split body 1, and is provided with an engaging protrusion 20 matching the inspection window 17 on the inner side. The engaging protrusion 20 is embedded in the inspection window 17, and the inner side surface of the engaging protrusion 20 is flush with the inner side surface of the arc-shaped split body 1; a cover fixing screw hole 21 is provided on the arc-shaped split body 1, and a corresponding cover fixing hole 22 is provided on the cover 18, and the cover fixing bolt passes through the cover fixing hole 22 and is screwed and fixed to the cover fixing screw hole 21; a positioning rod 23 is radially provided on the outer wall of the arc-shaped split body 1, and a positioning hole 24 is provided on the cover 18, and the positioning rod 23 penetrates the positioning hole 24; a plurality of clearance holes 25 corresponding to the cover fixing bolts and the positioning rods 23 are provided through the compensation plate 19.

[0072] Specifically, the first flange portion 16 at the end of the arc-shaped split 1 is used for connection and fixation with the conveying pipe, the third flange portion 93 is used for connection and fixation between adjacent arc-shaped splits 1, the inspection window 17 is radially penetrated and used for observing the internal situation, the inspection window 17 is closed by the cover 18 to ensure normal material transportation, the cover 18 and the arc-shaped split 1 are detachable and fixed, and have flexible disassembly and assembly. Since there are inevitable errors in the thickness of the cover 18 and the arc-shaped split 1 during processing, the cover 18 is processed relatively thick, and a compensation plate 19 is specially provided between the cover 18 and the arc-shaped split 1 to compensate for the thickness difference therebetween. By setting a corresponding number of compensation plates 19, the inner side surface of the cover 18 and the inner side surface of the arc-shaped split 1 are flushed to ensure concentricity with the center screw. Of course, the compensation plate 19 is located between the outer side of the inspection window 17 and the inner side surface of the outer periphery of the cover 18, which is equivalent to a gasket, and is simple and flexible to set. The cross section of the cover 18 is convex-shaped, and an engaging convex body 20 is provided in the middle part of the inner side thereof, and the engaging convex body 20 is embedded in the inspection window 17. The cover 18 and the arc-shaped split body 1 are fixed by cover fixing bolts, and have flexible detachability. The positioning rod 23 on the arc-shaped split body 1 passes through the positioning hole 24 of the cover 18, which has a positioning effect and is easy to install. The make way hole 25 on the compensation plate 19 is used to make way for the cover fixing bolts and the positioning rod 23, and also realizes the stable installation of the compensation plate 19.

[0073] As an optimization of this embodiment, a handrail rod 26 is provided on the outer side of the cover 18, and handrail connection holes are provided at both ends of the handrail rod 26. The handrail fixing bolts 27 penetrate the handrail connection holes and are screwed to the cover 18. The handrail rod 26 serves as a force-bearing part for taking the cover 18, which facilitates the removal, placement, and assembly of the cover 18. It is fixed by the handrail fixing bolts 27 and has flexible detachability.

[0074] like Figure 2 , 3 As shown in , 4, a thickness detection component 28 is provided on the support tube body 2, and the thickness detection component 28 is connected to the control circuit board 29, and the control circuit board 29 is connected to a wireless communication module 30, a rechargeable battery 31 and a power generation mechanism 32; the power generation mechanism 32 includes a first magnet 33 arranged on the spiral blade component 5 of the intermediate screw 3, the arc-shaped split body 1, the intermediate screw 3 and the spiral blade component 5 are made of aluminum alloy material, and a polytetrafluoroethylene bearing 34 that can rotate circumferentially around the center of the support tube body 2 and can be circumferentially spliced ​​is provided on the support tube body 2, the polytetrafluoroethylene bearing 34 is axially limited, and a second magnet 35 located at the same horizontal height as the first magnet 33 is provided on the inner side of the polytetrafluoroethylene bearing 34, the second magnet 35 is connected to the outer ring 36 of the polytetrafluoroethylene bearing 34, and the outer ring 36 is connected to the generator 38 through a transmission mechanism 37.

[0075] Specifically, the thickness detection component 28 is used to detect the thickness of the cover 18 and the thickness of the arc-shaped split body 1, and transmit the detection data to the control circuit board 29. The control circuit board 29 realizes data interaction with the control end through the wireless communication module 30, so as to facilitate the adjustment of the number of compensation plates 19 to achieve the flushness of the inner side surface of the cover 18 and the inner side surface of the arc-shaped split body 1, improve the concentricity with the intermediate screw 3, and avoid excessive wear between the spiral blade component 5 of the intermediate screw 3 and the inner side surface of the cover 18. The power generation mechanism 32 and the rechargeable battery 31 are used to realize the generation and storage of power required by the thickness detection component 28, the control circuit board 29 and the wireless communication module 30. Among them, a polytetrafluoroethylene bearing 34 is provided on the support tube body 2, and the outer ring 36 of the polytetrafluoroethylene bearing 34 can rotate freely. The second magnet 35 and the first magnet 33 are respectively provided on the outer ring 36 and the spiral blade assembly 5. Through the magnetic force between them, the spiral blade assembly 5 drives the outer ring 36 of the polytetrafluoroethylene bearing 34 to rotate. The outer ring 36 is connected to the generator 38 through the transmission mechanism 37 to achieve power generation, reducing the dependence on the external power supply. In addition, the arc-shaped split body 1, the intermediate screw 3, the spiral blade assembly 5 and the polytetrafluoroethylene bearing 34 are all made of materials that will not generate magnetic force with the magnet, ensuring that the first magnet 33 drives the second magnet 35 to rotate, and the polytetrafluoroethylene bearing 34 is a spliced ​​structure with flexible detachability. Among them, the wireless communication module 30 includes Bluetooth.

[0076] In this embodiment, a wear-resistant layer 39 is provided on the outer periphery of the spiral vane assembly 5 , and a magnet fixing groove 40 is radially opened at the radial outer end, and the first magnet 33 is fixed in the magnet fixing groove 40 .

[0077] Specifically, the wear-resistant layer 39 is in contact with the inner side surface of the arc-shaped split body 1 and the inner side surface of the cover 18, ensuring smooth transportation of materials, and the wear-resistant property increases the service life. A magnet fixing groove 40 is provided on the spiral blade assembly 5 for installing the first magnet 33, which is convenient for disassembly and assembly. Moreover, the fixing groove is provided at the radial outer end, which minimizes the distance with the second magnet 35 on the outer ring 36 of the polytetrafluoroethylene bearing 34 as much as possible, thereby increasing the magnetic force between them and ensuring that the first magnet 33 can drive the second magnet 35 to move.

[0078] like Figure 3As shown, each arc-shaped split body 1 is provided with two arc-shaped reinforcing ribs 42 which are axially distributed and extend in the circumferential direction and are located between the compensation plate 19 and the first flange portion 16 above. An arc-shaped groove 43 is formed between the two arc-shaped reinforcing ribs 42. The arc-shaped reinforcing ribs 42, the arc-shaped grooves 43 and the end faces of the arc-shaped split body 1 are located on the same plane. All the arc-shaped grooves 43 are connected end to end to form an annular groove 44. A polytetrafluoroethylene bearing 34 is provided in the annular groove 44. The inner ring 45 of the polytetrafluoroethylene bearing 34 is fixed in the arc-shaped groove 43. The annular groove 44 is sealed by a plurality of arc-shaped sealing plates 46 which are distributed in the circumferential direction and are U-shaped. The arc-shaped sealing plates 46 are elastically clamped with the arc-shaped reinforcing ribs 42. The outer ring 36 is connected to the generator 38 through a transmission mechanism 37. The transmission mechanism 37 passes through one of the arc-shaped sealing plates 46.

[0079] Specifically, two arc-shaped reinforcing ribs 42 are provided on the arc-shaped split body 1, and an arc-shaped groove 43 is formed between the two arc-shaped reinforcing ribs 42. The arc-shaped grooves 43 of the two arc-shaped split bodies 1 are assembled into an annular groove 44, and the annular groove 44 is used for the installation of the polytetrafluoroethylene bearing 34. The inner ring 45 of the polytetrafluoroethylene bearing 34 is fixed in the arc-shaped groove 43. The arc-shaped sealing plate 46 plays a sealing role to prevent the entry of external dust and debris to affect the normal rotation of the polytetrafluoroethylene bearing 34. It is elastically connected with the arc-shaped reinforcing rib 42 and has flexible detachability. Specifically, the clamping can be realized by the elastic tenon 47 and the clamping groove set on the opposite sides of the arc-shaped sealing plate 46 and the arc-shaped reinforcing rib 42. The elastic tenon 47 is clamped in the clamping groove to realize clamping and fixing. The transmission mechanism is penetrated by the arc-shaped sealing plate 46 to realize the transmission connection between the outer ring 36 and the generator 38.

[0080] As an optimization, a sealing ring is further provided between the arc-shaped sealing plate 46 and the arc-shaped reinforcing rib 42 , and the end of the arc-shaped sealing plate 46 is butt-jointed via a male-female structure, and a sealing ring is provided between the male-female structure.

[0081] Specifically, the male-female structure makes the connection between the arc-shaped sealing plates 46 flexible and detachable, and the sealing rings between the arc-shaped sealing plates 46 and between the arc-shaped sealing plates 46 and the arc-shaped reinforcing ribs 42 further improve the sealing performance and prevent external debris from entering the arc-shaped sealing plates 46.

[0082] like Figure 2 , 3As shown, the transmission mechanism 37 includes an outer gear 48 arranged on the outer ring 36, a driven gear 50 cooperating with the outer gear 48 is provided on the head shaft 49 of the generator 38, the driven gear 50 passes through the arc-shaped sealing plate 46, the generator 38 and the driven gear 50 are arranged in a module box 51, and the module box 51 is provided with a gear opening 52 for the driven gear 50 to pass through and cooperate with the outer gear 48. A first heat dissipation impeller 53 is provided at the bottom of the generator 38, and the first heat dissipation impeller 53 is fixed on the tail shaft 54 ​​of the generator 38. A first oblique air inlet 55 inclined downward is provided on the module box 51, and a first air outlet 56 is connected to the arc-shaped groove 43.

[0083] Specifically, the transmission mechanism is realized by an external gear 48 on the outer side of the outer ring 36 with teeth circumferentially distributed and a driven gear 50 on the head shaft 49 of the generator 38, and has a stable transmission effect. The generator 38 and the driven gear 50 are arranged in a module box 51, and the module box 51 has a protective function. A first heat dissipation impeller 53 is arranged on the tail shaft 54 ​​of the generator 38. The tail shaft 54 ​​and the head shaft 49 rotate synchronously. The rotation of the first heat dissipation impeller 53 promotes air flow. Air enters from the first oblique air inlet 55 and exits from the first air outlet 56. Heat is taken away during the circulation process, which has the effect of heat dissipation and cooling. Moreover, the first oblique air inlet 55 is inclined downward, which reduces the possibility of external dust, debris and water entering.

[0084] like Figure 1 , 2As shown in Figure 3, the module box 51 includes a box body 57 with an outer opening, and the inner side of the box body 57 is arranged in a slot 60 of a vertical reinforcing rib 59 through an insert body 58. The vertical reinforcing rib 59 is vertically extended and arranged on the outer wall of the arc-shaped split body 1, and is located between the arc-shaped reinforcing rib 42 on the lower side and the first flange portion 16 on the lower side. The insert body 58 is fixed to the vertical reinforcing rib 59 by a plurality of bolts. The box body 57 is provided with a first mounting groove 61, a second mounting groove 62 and a third mounting groove 63 which are distributed from top to bottom and separated from each other. The first mounting groove 61, the second mounting groove 62 and the third mounting groove 63 are closed by a box cover 64. The first oblique air inlet 55 is arranged on the box cover 64 and is located at the bottom of the first mounting groove 61. The generator 38 and the driven gear 50 are detachably installed in the first mounting groove 61, and the gear opening 52 is connected to the first mounting groove 61. The gear opening 52 abuts against the arc-shaped sealing plate 46 and is provided with a sealing ring. The control circuit board 29 and the rechargeable battery 31 are detachably installed in the slot 62, and a heat insulating pad 74 is provided between the control circuit board 29 and the rechargeable battery 31 and the box body 57. The generator 38 is connected to the control circuit board 29 through the first line connecting pipe 65. The tail shaft 54 ​​is penetrated into the second installation slot 62 and is connected to the second heat dissipation impeller 66 in the second installation slot 62. An oil seal 67 is provided between the second installation slot 62 and the tail shaft 54. The box cover 64 is provided with a second air inlet 68 and a second air outlet 69 located at the bottom and top of the second installation slot 62. A detector body 70 of the thickness detection assembly 28 is provided in the third installation slot 63. The detector body 70 is connected to the control circuit board 29 through the second line connecting pipe 71. The detector body 70 is connected to the detection probe. The detection probe is connected to the support tube body 2 and the compensation plate 19 through a cable penetrating the box body 57. An antenna 73 connected to the control circuit board 29 is provided at the bottom of the box body 57.

[0085] Specifically, the insert 58 of the box body 57 is inserted into the slot 60 of the vertical reinforcing rib 59 and fixed by bolts. The installation is stable and flexible. The internal space of the box body 57 is divided from top to bottom into a first installation slot 61, a second installation slot 62 and a second installation slot 62, which are used to respectively set the power generation and driven gears 50 of the power generation mechanism 32, the control circuit board 29 and the rechargeable battery 31 and the detector body 70. Each installation slot is relatively independent to reduce the interference between each other. The box body 57 is closed by a box cover 64, which cuts off the connection between each installation slot and the outside world and protects the mechanism in the slot. Moreover, the closure is detachable and easy to disassemble and assemble. The tail shaft 54 ​​of the generator 38 penetrates into the second mounting groove 62 and is connected to a second heat dissipation impeller 66. When generating electricity, the second heat dissipation impeller 66 rotates, and air flows in from the second air inlet 68 and flows out from the second air outlet 69. The air flow process takes away the heat in the second mounting groove 62, especially realizing the cooling and heat dissipation of the rechargeable battery 31. In addition, an oil seal 67 is provided between the tail shaft 54 ​​and the second mounting groove 62 to ensure the independence of the first mounting groove 61 and the second mounting groove 62. The detection probe is connected to the support tube body 2 and the compensation plate 19, and is used to detect the thickness of the support tube body 2 and the cover 18. An antenna 73 is provided at the bottom of the box body 57, and the antenna 73 is connected to the control circuit board 29 to receive and send signals to ensure the smooth operation of the wireless communication module 30.

[0086] In this embodiment, the detector body 70 includes an ultrasonic detector, the detection probe is an ultrasonic detection probe 72, the ultrasonic detector is connected to the ultrasonic detection probe 72 via a cable, and the ultrasonic detection probe 72 is fixed by screws. The thickness detection is achieved by the ultrasonic detector and the ultrasonic detection probe through ultrasonic waves, and has a good detection effect.

[0087] like Figure 2 , 3 As shown, the polytetrafluoroethylene bearing 34 includes a spliced ​​inner ring 78 and a spliced ​​outer ring 79, a spliced ​​retaining frame 80 is provided between the spliced ​​inner ring 78 and the spliced ​​outer ring 79, and a ball 41 is provided on the spliced ​​retaining frame 80. The spliced ​​inner ring 78 is inserted into the extension section groove 82 of the arc-shaped reinforcing rib 42 through an extension section 81, and a screw for fixing to the arc-shaped reinforcing rib 42 is obliquely inserted on the extension section 81. A radially arranged magnet fixing plate 83 is provided on the top of the spliced ​​outer ring 79, and the magnet fixing plate 83 is connected to the spliced ​​outer ring 79 as a whole, and the second magnet 35 is fixed on the magnet fixing plate 83.

[0088] Specifically, the inner ring 78 is spliced ​​into the inner ring 45, and the outer ring 79 is spliced ​​into the outer ring 36. A ball 41 is provided between the outer ring 36 and the inner ring 45. The ball 41 is provided on the spliced ​​retaining frame 80 to ensure the stable rolling of the ball 41 between the outer ring 36 and the inner ring 45. The extension section 81 of the spliced ​​inner ring 78 is inserted into the extension section groove 82, which has a positioning effect. The screw is obliquely inserted into the arc-shaped reinforcement rib 42 and the extension section 81 to realize the detachable fixation of the spliced ​​inner ring 78 and the arc-shaped reinforcement rib 42. Of course, the screw is It is made of aluminum and has no magnetic effect on the magnet. A magnet fixing plate 83 is provided on the spliced ​​outer ring 79, and the magnet fixing plate 83 is located on the axial side of the spliced ​​inner ring 78 away from the extension section 81. The magnet fixing plate 83 is used to fix the second magnet 35, and the fixation can be achieved by screws that do not generate magnetic effect on the magnet. The second magnet 35 is located on the radial inner side of the spliced ​​inner ring 78, that is, close to the bottom of the arc groove 43, which reduces the distance with the first magnet 33 and ensures that there is sufficient magnetic attraction between the first magnet 33 and the second magnet 35.

[0089] In this embodiment, if Figure 8-12 As shown, the spliced ​​inner ring 78 includes two arcuate inner rings 84, and the two arcuate inner rings 84 are fixed at their ends by first 8-shaped clamps 85, and the two ends of the first 8-shaped clamps 85 are respectively clamped in the first cone grooves 86 at the two ends of the arcuate inner ring 84, and the first cone groove 86 does not radially penetrate the arcuate inner ring 84, and the first cone groove 86 and the first 8-shaped clamps 85 are fixed by screws; the spliced ​​outer ring 79 includes two arcuate outer rings 92, and the two arcuate outer rings 92 are fixed at their ends by second 8-shaped clamps 87, and the two ends of the second 8-shaped clamps 87 are respectively clamped in the arcuate inner ring 84. The second conical groove 88 at both ends of the outer ring 92, and the second conical groove 88 does not radially penetrate the arc-shaped outer ring 92, the second conical groove 88 and the second 8-shaped clamping body 87 are fixed by screws; the spliced ​​retaining frame 80 includes two arc-shaped retaining frames 89, and the two arc-shaped retaining frames 89 are fixed at the head and tail by the third 8-shaped clamping body 90, and the two ends of the third 8-shaped clamping body 90 are respectively clamped in the third conical groove 91 at both ends of the arc-shaped retaining frame 89, and the third conical groove 91 does not radially penetrate the arc-shaped retaining frame 89, and the third conical groove 91 and the third 8-shaped clamping body 90 are fixed by screws.

[0090] Specifically, the first 8-shaped clamping body 85 is clamped in the first cone groove 86 at the end of the arc-shaped inner ring 84 to form a mortise and tenon type clamping connection. At the same time, the screw passes through the first 8-shaped clamping body 85 and is connected to the bottom of the first cone groove 86 to achieve the effect of fixing and connecting the adjacent arc-shaped inner rings 84. The connection is stable and has flexible detachability. The same applies to the spliced ​​outer ring 79 and the spliced ​​retainer 80.

[0091] Specific working principle: When the material is conveyed, the conveying screw and the intermediate screw 3 rotate synchronously. The first magnet 33 on the intermediate screw 3 drives the outer ring 36 of the polytetrafluoroethylene bearing 34 to rotate through magnetic attraction. The outer ring 36 drives the head shaft 49 to rotate, and the generator 38 generates electricity. At the same time, the first heat dissipation impeller 53 and the second heat dissipation impeller 66 rotate to dissipate heat and cool the first mounting groove 61 and the second mounting groove 62. The electric energy generated by the generator 38 is stored in the rechargeable battery 31. The rechargeable battery 31 supplies power to the thickness detection component 28 and the wireless communication module 30. The ultrasonic detector and ultrasonic detection probe of the thickness detection component 28 detect the thickness of the arc-shaped split 1 and the cover 18 in real time, and send the thickness information to the control circuit board 29.

[0092] When it is detected that the inner side surface of the cover 18 is not flush with the inner side surface of the arc-shaped split body 1, the control circuit board 29 sends a repair signal, and the maintenance personnel can adjust it by increasing or decreasing the number of compensation plates 19 to make the inner side surface of the cover 18 flush with the inner side surface of the arc-shaped split body 1.

[0093] When the intermediate screw 3 needs to be repaired, for example, when the spiral sheet assembly 5 needs to be replaced, one of the arc-shaped split bodies 1 can be removed for repair.

[0094] Example 2

[0095] The specific working principle of this embodiment is basically the same as that of Embodiment 1, except for the thickness detection component.

[0096] Specific implementation examples Fig.13 As shown, the detector body 70 includes a camera module, and the detection probe includes a camera 75. The camera module is connected to the camera 75 via a cable. The camera is screwed into the camera hole of the arc-shaped split body 1 and sealed by a sealing ring. The outer end of the camera is high and the inner end is low, and the inner end is located in the middle of the arc-shaped split body 1.

[0097] Specifically, in this embodiment, thickness detection is achieved by the camera 75 through image acquisition and analysis. The camera 75 is higher near one end of the middle screw 3, forming an inclined direction that is the same as the direction of material conveying, thereby reducing the possibility of material entering and being compacted in the camera hole, and also preventing dust on the outer wall of the arc-shaped split body 1 from falling into the camera hole from above. The sealing ring between them further improves the sealing performance to prevent material from passing through.

[0098] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

Claims

1. An intermediate support device that is easy to maintain, used to connect two sections of a screw conveying mechanism, characterized in that: The invention comprises a support tube body (2) formed by detachably assembling at least two arc-shaped parts (1), wherein an intermediate screw (3) is arranged in the support tube body (2), wherein the intermediate screw (3) comprises a support shaft (4) and at least two spiral blade assemblies (5) circumferentially distributed on the support shaft (4), wherein a spiral blade positioning structure (6) is arranged between the spiral blade assemblies (5) and the support shaft (4), and wherein the spiral blade assemblies (5) are detachably fixedly connected to each other; The arc-shaped split body (1) is provided with first flange parts (16) at both ends, and an inspection window (17) is provided through the side surface and is located between the two first flange parts (16). A cover (18) is detachably provided on the inspection window (17). A plurality of compensation plates (19) are provided between the cover (18) and the arc-shaped split body (1) to make the arc-shaped inner side surface of the cover (18) flush with the arc-shaped inner side surface of the arc-shaped split body (1). The arc-shaped split body (1) is provided with a strip-shaped third flange part (93) at the circumferential end, and the third flange parts (93) of adjacent arc-shaped split bodies (1) are fixed by bolts. The support tube body (2) and / or the compensation plate (19) are provided with a thickness detection component (28), the thickness detection component (28) is connected to a control circuit board (29), and the control circuit board (29) is connected to a wireless communication module (30), a rechargeable battery (31) and a power generation mechanism (32); The power generation mechanism (32) comprises a first magnet (33) arranged on the spiral blade assembly (5) of the intermediate screw (3); the arc-shaped split body (1), the intermediate screw (3) and the spiral blade assembly (5) are made of aluminum alloy material; a polytetrafluoroethylene bearing (34) capable of circumferential rotation around the center of the support tube (2) and capable of circumferential splicing is provided on the support tube (2); the polytetrafluoroethylene bearing (34) is axially limited, and a second magnet (35) located at the same horizontal height as the first magnet (33) is provided on the inner side of the polytetrafluoroethylene bearing (34); the second magnet (35) is connected to the outer ring (36) of the polytetrafluoroethylene bearing (34); and the outer ring (36) is connected to the generator (38) via a transmission mechanism (37).

2. The intermediate support device for easy maintenance according to claim 1, characterized in that: The spiral blade assembly (5) comprises an arc-shaped mounting portion (7) and a spiral half blade (8) fixed to the outside of the mounting portion (7); the mounting portion (7) is enclosed on the support shaft (4), and the inner side walls at the upper and lower ends are in contact with the outer side wall of the second flange portion (9) at the end of the support shaft (4); T-shaped spiral piece fixing through holes (10) and spiral piece fixing screw holes (11) are provided at two circumferential ends of the mounting portion (7), and spiral piece fixing bolts pass through the spiral piece fixing through holes (10) and are connected to the spiral piece fixing screw holes (11).

3. The intermediate support device for easy maintenance according to claim 2, characterized in that: The spiral sheet positioning structure (6) comprises a positioning protrusion (12) and a positioning groove (13) respectively located on the inner side of the mounting portion (7) and the outer side of the support shaft (4), and the positioning protrusion (12) is embedded in the positioning groove (13); The inner side of the mounting portion (7) is provided with a circumferentially extending arc-shaped convex body (14), the inner side wall of the arc-shaped convex body (14) is in contact with the outer side wall of the support shaft (4), and the positioning groove (13) is provided on the inner side wall; The spiral piece fixing through hole (10) and the spiral piece fixing screw hole (11) are provided with a mounting portion (7) and / or an arc-shaped protrusion (14) through the circumferential end surface.

4. The intermediate support device for easy maintenance according to claim 1, characterized in that: The cover (18) is in an arc shape that matches the arc-shaped split body (1), and is provided with a mating convex body (20) that matches the inspection window (17) on the inner side. The mating convex body (20) is embedded in the inspection window (17), and the inner side surface of the mating convex body (20) is flush with the inner side surface of the arc-shaped split body (1); The arc-shaped split body (1) is provided with a cover fixing screw hole (21), and the cover (18) is provided with a corresponding cover fixing hole (22), and the cover fixing bolt passes through the cover fixing hole (22) and is screwed and fixed to the cover fixing screw hole (21); A positioning rod (23) is radially arranged on the outer wall of the arc-shaped split body (1), a positioning hole (24) is arranged on the cover (18), and the positioning rod (23) penetrates the positioning hole (24); The compensation plate (19) is provided with a plurality of clearance holes (25) which correspond one to one with the cover fixing bolts and the positioning rods (23).

5. The intermediate support device for easy maintenance according to claim 4, characterized in that: Each arc-shaped split body (1) is provided with two arc-shaped reinforcing ribs (42) which are distributed axially and extend in the circumferential direction and are located between the compensation plate (19) and the first flange portion (16) above. An arc-shaped groove (43) is formed between the two arc-shaped reinforcing ribs (42). The arc-shaped reinforcing ribs (42), the arc-shaped grooves (43) and the end faces of the arc-shaped split body (1) are located on the same plane. All the arc-shaped grooves (43) are connected end to end to form an annular groove (44). The annular groove (44) is provided with The polytetrafluoroethylene bearing (34) is characterized in that the inner ring (45) of the polytetrafluoroethylene bearing (34) is fixed in the arc groove (43), the annular groove (44) is sealed by a plurality of arc sealing plates (46) distributed in the circumferential direction and in a U-shape, the arc sealing plates (46) are elastically engaged with the arc reinforcing ribs (42), the outer ring (36) is connected to the generator (38) via a transmission mechanism (37), and the transmission mechanism (37) passes through one of the arc sealing plates (46).

6. The intermediate support device for easy maintenance according to claim 5, characterized in that: The transmission mechanism (37) comprises an outer gear (48) arranged on an outer ring (36); a driven gear (50) cooperating with the outer gear (48) is arranged on the head shaft (49) of the generator (38); the driven gear (50) passes through an arc-shaped sealing plate (46); the generator (38) and the driven gear (50) are arranged in a module box (51); the module box (51) is provided with a gear opening (52) for the driven gear (50) to pass through and cooperate with the outer gear (48); a first heat dissipation impeller (53) is arranged at the bottom of the generator (38); the first heat dissipation impeller (53) is fixed on the tail shaft (54) of the generator (38); a first oblique air inlet (55) inclined downward is arranged on the module box (51); and at least one first air outlet (56) is connected to the arc-shaped groove (43).

7. The intermediate support device for easy maintenance according to claim 6, characterized in that: The module box (51) comprises a box body (57) with an outer opening. The inner side of the box body (57) is arranged in a slot (60) of a vertical reinforcing rib (59) through an insert (58). The vertical reinforcing rib (59) is vertically extended and arranged on the outer side wall of the arc-shaped split body (1), and is located between the arc-shaped reinforcing rib (42) on the lower side and the first flange portion (16) on the lower side. The insert (58) is fixed to the vertical reinforcing rib (59) by a plurality of bolts. The box body (57) is provided with first installation grooves (61) distributed from top to bottom and separated from each other. The first mounting groove (61), the second mounting groove (62) and the third mounting groove (63) are closed by a box cover (64); the first oblique air inlet (55) is arranged on the box cover (64) and is located at the bottom of the first mounting groove (61); a generator (38) and a driven gear (50) are detachably installed in the first mounting groove (61); the gear opening (52) is communicated with the first mounting groove (61); the gear opening (52) abuts against the arc-shaped sealing plate (46) and is provided with a sealing The second mounting groove (62) is detachably mounted with a control circuit board (29) and a rechargeable battery (31); the generator (38) is connected to the control circuit board (29) via a first line connecting pipe (65); the tail shaft (54) is inserted into the second mounting groove (62) and connected to a second heat dissipation impeller (66) in the second mounting groove (62); an oil seal (67) is provided between the second mounting groove (62) and the tail shaft (54); and the box cover (64) is provided with second sealing members located at the bottom and top of the second mounting groove (62). An air inlet (68) and a second air outlet (69), a detector body (70) of a thickness detection assembly (28) is arranged in the third installation slot (63), the detector body (70) is connected to the control circuit board (29) via a second line connecting pipe (71), the detector body (70) is connected to a detection probe, and the detection probe is connected to the support tube body (2) and / or the compensation plate (19) via a cable passing through the box body (57), and an antenna (73) connected to the control circuit board (29) is arranged at the bottom of the box body (57).

8. The intermediate support device for easy maintenance according to claim 5, characterized in that: The polytetrafluoroethylene bearing (34) comprises a spliced ​​inner ring (78) and a spliced ​​outer ring (79), a spliced ​​retaining frame (80) is provided between the spliced ​​inner ring (78) and the spliced ​​outer ring (79), a ball (41) is provided on the spliced ​​retaining frame (80), the spliced ​​inner ring (78) is inserted into an extension section groove (82) of an arc-shaped reinforcing rib (42) through an extension section (81), a screw for fixing to the arc-shaped reinforcing rib (42) is obliquely inserted on the extension section (81), a radially arranged magnet fixing plate (83) is provided on the top of the spliced ​​outer ring (79), the magnet fixing plate (83) is connected to the spliced ​​outer ring (79) as a whole, and the second magnet (35) is fixed on the magnet fixing plate (83).

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