Stirring structure of rake dryer

Abstract

The utility model discloses a stirring structure of a rake dryer, and particularly relates to the technical field of rake dryers, the stirring structure comprises a rake rod arranged in a dryer shell, a rake blade assembly is detachably arranged outside the rake rod, two sleeve rods are sleeved outside the rake rod, two groups of scraping blade assemblies are sleeved outside the two sleeve rods, and the two groups of scraping blade assemblies are connected with the rake rod. A driving structure is arranged at one end of the rake rod. According to the stirring structure, the stirring efficiency of materials in the drying machine can be improved, an operator can conveniently disassemble and assemble the abraded part of the stirring structure according to the actual situation, then the damaged part of the stirring structure can be conveniently replaced, and the maintenance cost and burden are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of rake type dryers, and more specifically, to a stirring structure of a rake type dryer. Background Art

[0002] Rake dryer is a novel horizontal intermittent vacuum drying equipment. The wet material is evaporated by conduction and moves in the container to form a circulating flow. After the water evaporates, it is pumped out by the vacuum pump to achieve a drying effect. It can be used in the chemical feed and food industry to dry granular and powder materials.

[0003] The stirring structure is one of the important parts inside the rake dryer. It can evenly mix and stir the materials inside the dryer, and continuously remove the materials on the hot surface to improve the drying efficiency of the materials. Generally, a motor is used to drive the rake rod and rake leaves to rotate to achieve the stirring effect of the materials.

[0004] After searching, a Chinese patent with patent publication number CN215571843U discloses a vacuum rake dryer, the stirring structure of which achieves more thorough stirring of the material, can effectively prevent the material from sticking to the inner wall of the drying cylinder, and improves the drying efficiency.

[0005] In addition, a Chinese patent with patent publication number CN219390266U discloses a vacuum rake dryer, in which the stirring structure utilizes the rotating roller to rotate so that the rake teeth on both sides stir inside the dryer body, and while stirring, the crushing rollers on both sides squeeze the material on the upper end of the inner wall to crush it for easy heating and drying, thereby increasing the drying speed.

[0006] However, when the above structure is actually used, the above stirring structure is an integral fixed structure. Once a part of the stirring structure is worn out due to long-term use, it is difficult to replace the parts at the worn position, and the entire stirring structure needs to be replaced, which increases the maintenance cost and burden. In view of this, the utility model proposes a stirring structure of a rake dryer. Utility Model Content

[0007] In order to overcome the above defects of the prior art, the utility model provides a stirring structure of a rake dryer to solve the problems raised in the above background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stirring structure of a rake-type dryer, comprising a rake rod installed inside the dryer shell, a rake leaf assembly being detachably installed on the outside of the rake rod, two sleeve rods being sleeved on the outside of the rake rod, two sets of scraper leaf assemblies being jointly sleeved on the outside of the two sleeve rods, and a driving structure being arranged at one end of the rake rod.

[0009] In order to achieve uniform mixing and conveying of the materials inside the dryer, and at the same time, to facilitate the operator to individually remove and replace the worn Jiaolong blades, preferably, the rake blade assembly includes a plurality of Jiaolong blades, and the plurality of Jiaolong blades are installed on the outside of the rake rod, wherein the surface of the rake rod is provided with a plurality of embedding grooves, and the inside of the embedding grooves is provided with positioning grooves, and the bottom of each of the Jiaolong blades is provided with two embedding plates, and the bottom of the embedding plates is provided with positioning blocks, and the connection between the embedding plates and the rake rod is provided with a plurality of mounting holes, and screws are installed inside the plurality of mounting holes, and the embedding plates are embedded and installed inside the embedding grooves, and the positioning blocks are located inside the positioning grooves, and the embedding plates are detachably installed inside the embedding grooves by screws, a clamping plate is provided at one end of the Jiaolong blade, and a clamping groove compatible with the clamping plate structure is provided at the other end, and a plurality of threaded holes are provided at the connection between the clamping plate and the Jiaolong blade, and bolts are installed on the internal threads of the threaded holes.

[0010] In order to be able to scrape off the material attached to the inner wall of the dryer, and at the same time facilitate the disassembly and assembly of the scraper and install the scraper assembly on the outside of the sleeve rod, preferably, the sleeve rod is rotatably connected to the outside of the rake rod, and the scraper assembly includes a connecting rod, which is installed on the surface of the sleeve rod, and an insertion hole is opened on the surface of the sleeve rod. An insertion rod is provided at one end of the connecting rod, and the insertion rod is threadedly connected to the insertion hole. A positioning rod is provided at the other end of the connecting rod, and a positioning plate is sleeved on the outside of the positioning rod. A locking nut is threadedly installed on the outside of the positioning rod at the front side of the positioning plate, and a scraper is fixedly installed between the two positioning plates.

[0011] In order to achieve reverse rotation between the sleeve rod and the rake rod, and then achieve reverse rotation of the rake blade assembly and the scraper blade assembly, thereby improving the mixing efficiency, preferably, the driving structure includes a motor, the output end of the motor is coaxially connected to one end of the rake rod, a first driving wheel is fixedly sleeved on the outside of the rake rod and close to the side of the motor, a support seat is provided at the bottom of the rake rod, an axle rod is rotatably provided inside the support seat, a second driving wheel is fixedly sleeved on the outside of the axle rod, a driving belt is jointly sleeved on the outside of the first driving wheel and the second driving wheel, a first gear is fixedly sleeved on the outside of the axle rod located on one side of the second driving wheel, a second gear is meshed on the top of the first gear, and the second gear is fixedly sleeved on the outside of one of the sleeve rods.

[0012] Technical effects and advantages of the utility model:

[0013] 1. By setting up the rake blade assembly, the rake rod can drive the dragon blade to rotate during the rotation process, so as to achieve the effect of uniform mixing and conveying of the materials. By releasing the connection between every two adjacent dragon blades, the bolt is disengaged from the inside of the threaded hole, and the clamping plate is disengaged from the inside of the clamping groove. Then, the screws at the embedded plate and the rake rod are released, the embedded plate is taken out from the inside of the embedded groove, and the positioning block is disengaged from the inside of the positioning groove, so that a single worn dragon blade can be replaced, and the assembly operation is convenient;

[0014] 2. By setting up the scraper assembly, the sleeve rod rotates to drive the scraper to rotate, which can turn the material and scrape the material attached to the inner wall of the dryer. The rotation of the dragon blade can improve the stirring effect of the material. The scraper can be removed by loosening the locking nut and separating the positioning plates at both ends of the scraper from the positioning rod. The insertion rod at one end of the connecting rod can be screwed out from the internal thread of the insertion hole to remove the connecting rod, which is also convenient for installation.

[0015] 3. By setting up a driving structure, the motor drives the rake rod to rotate inside the dryer, so that the first driving wheel outside the rake rod rotates. Under the action of the driving belt, the first driving wheel drives the second driving wheel to drive the shaft rod to rotate inside the support seat. During the rotation of the shaft rod, it will drive the first gear to rotate, and drive the second gear to rotate through the first gear. The second gear drives the sleeve rod to rotate outside the rake rod, so that the sleeve rod rotates in the opposite direction outside the rake rod, which can make the dragon blade and the scraper rotate in opposite directions, further improving the stirring effect of the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 The utility model is a schematic diagram of the connection structure between the scraper and the sleeve rod.

[0018] Figure 3 It is a schematic structural diagram of a plurality of Jiaolong leaves of the utility model when assembled.

[0019] Figure 4 It is a schematic diagram of the surface structure of the rake rod of the utility model.

[0020] Figure 5 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0021] The accompanying drawings are marked as follows: 1. rake rod; 2. sleeve rod; 3. dragon blade; 4. embedding groove; 5. positioning groove; 6. embedding plate; 7. positioning block; 8. mounting hole; 9. screw; 10. clamping plate; 11. clamping groove; 12. bolt; 13. connecting rod; 14. insertion hole; 15. insertion rod; 16. positioning rod; 17. positioning plate; 18. locking nut; 19. scraper; 20. motor; 21. first drive wheel; 22. support seat; 23. shaft rod; 24. second drive wheel; 25. driving belt; 26. first gear; 27. second gear. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] As attached Figure 1-5 The stirring structure of a rake dryer shown in the figure comprises a rake rod 1 installed inside the dryer shell, a rake leaf assembly is detachably installed on the outside of the rake rod 1, two sleeve rods 2 are sleeved on the outside of the rake rod 1, two sets of scraper leaf assemblies are jointly sleeved on the outside of the two sleeve rods 2, and a driving structure is arranged at one end of the rake rod 1.

[0024] It can be understood that the driving structure can drive the rake bar 1 to rotate inside the dryer, and make the rake blade assembly outside the rake bar 1 rotate, so as to evenly mix and transport the materials inside the dryer, and the rake blade assembly can be removed from the outside of the rake bar 1, so as to facilitate the replacement of the worn rake blade assembly;

[0025] When the driving structure drives the rake rod 1 to rotate and causes the rake blade assembly to rotate, the sleeve rod 2 can rotate in the opposite direction outside the rake rod 1, thereby driving the scraper blade assembly to rotate in the opposite direction, so that the scraper blade assembly and the rake blade assembly can achieve reverse motion. The scraper blade assembly can scrape the material attached to the inner wall of the dryer and mix it, thereby improving the stirring efficiency of the material inside the dryer.

[0026] Description of each of the above components:

[0027] In a specific embodiment, as shown in the attached Figure 1 , 3As shown in , 4, the rake leaf assembly includes a plurality of Jiaolong leaves 3, and the plurality of Jiaolong leaves 3 are all installed on the outside of the rake rod 1, wherein the surface of the rake rod 1 is provided with a plurality of embedding grooves 4, and the inside of the embedding grooves 4 is provided with positioning grooves 5, and the bottom of each Jiaolong leaf 3 is provided with two embedding plates 6, and the bottom of the embedding plate 6 is provided with a positioning block 7, and the connection between the embedding plate 6 and the rake rod 1 is provided with a plurality of mounting holes 8, and the inside of the plurality of mounting holes 8 is installed with screws 9, the embedding plate 6 is embedded and installed in the inside of the embedding groove 4, and the positioning block 7 is located in the inside of the positioning groove 5, and the embedding plate 6 is detachably installed in the inside of the embedding groove 4 by means of screws 9, a clamping plate 10 is provided at one end of the Jiaolong leaf 3, and a clamping groove 11 compatible with the structure of the clamping plate 10 is provided at the other end, and a plurality of threaded holes are provided at the connection between the clamping plate 10 and the Jiaolong leaf 3, and bolts 12 are installed with the internal threads of the threaded holes.

[0028] Specifically, the rake blade assembly is installed on the outside of the rake rod 1, and the rake blade assembly is removed from the outside of the rake rod 1, and multiple dragon blades 3 can be disassembled to achieve replacement of individually worn dragon blades 3. Specifically,

[0029] When the rake blade assembly is installed on the outside of the rake rod 1, the embedded plates 6 at the plurality of dragon blades 3 are respectively embedded in the corresponding embedded grooves 4 provided in the rake rod 1, and the positioning block 7 is inserted into the positioning groove 5. At the same time, the embedded plates 6 are installed on the outside of the rake rod 1 by screws 9, so that the dragon blades 3 can be installed on the outside of the rake rod 1;

[0030] The clamping plate 10 at one end of one of the dragon blades 3 is clamped into the clamping slot 11 provided in the other dragon blade 3, and connected by bolts 12, so as to realize the assembly of the rake bar 1 as a whole, and then the rake bar 1 assembly is installed on the outside of the rake bar 1;

[0031] Similarly, when a certain Jiaolong blade 3 is worn and needs to be replaced, first release the connection between every two adjacent Jiaolong blades 3 so that the bolt 12 is disengaged from the inside of the threaded hole, and release the screws 9 at the embedment plate 6 and the rake rod 1, remove the embedment plate 6 from the inside of the embedment groove 4, and disengage the positioning block 7 from the inside of the positioning groove 5, so that a single worn Jiaolong blade 3 can be replaced.

[0032] In a specific embodiment, as shown in the attached Figure 1 , 2As shown in , 5, the sleeve rod 2 is rotatably connected to the outside of the rake rod 1, and the scraper assembly includes a connecting rod 13, which is installed on the surface of the sleeve rod 2. An insertion hole 14 is opened on the surface of the sleeve rod 2, and an insertion rod 15 is provided at one end of the connecting rod 13. The insertion rod 15 is threadedly connected to the insertion hole 14, and a positioning rod 16 is provided at the other end of the connecting rod 13. A positioning plate 17 is sleeved on the outside of the positioning rod 16, and a locking nut 18 is threadedly installed on the outside of the positioning rod 16 at the front side of the positioning plate 17, and a scraper 19 is fixedly installed between the two positioning plates 17.

[0033] Specifically, in this structure, the scraper assembly can be detachably mounted on the outside of the sleeve rod 2. Specifically, the connecting rod 13 can be threadedly connected to the surface of the sleeve rod 2 through the insertion rod 15 and the insertion hole 14, so that the insertion rod 15 is connected to the sleeve rod 2, and the positioning plates 17 at both ends of the scraper 19 are respectively sleeved on the outside of the positioning rod 16, and are locked by threading the locking nut 18 with the positioning rod 16, so that the installation of the scraper assembly can be achieved;

[0034] Similarly, once the scraper 19 is worn and needs to be disassembled, first loosen the locking nut 18, detach the positioning plates 17 at both ends of the scraper 19 from the positioning rod 16, and then remove the scraper 19. Unscrew the insertion rod 15 at one end of the connecting rod 13 from the internal thread of the insertion hole 14 to remove the connecting rod 13.

[0035] In a specific embodiment, as shown in the attached Figure 1 As shown, the driving structure includes a motor 20, the output end of the motor 20 is coaxially connected with one end of the rake rod 1, a first driving wheel 21 is fixedly sleeved on the outside of the rake rod 1 and close to the side of the motor 20, a support seat 22 is provided at the bottom of the rake rod 1, an axle rod 23 is rotatably provided inside the support seat 22, a second driving wheel 24 is fixedly sleeved on the outside of the axle rod 23, a driving belt 25 is commonly sleeved on the outside of the first driving wheel 21 and the second driving wheel 24, a first gear 26 is fixedly sleeved on the outside of the axle rod 23 located on one side of the second driving wheel 24, a second gear 27 is meshed on the top of the first gear 26, and the second gear 27 is fixedly sleeved on the outside of one of the sleeve rods 2.

[0036] Specifically, the driving structure can realize the reverse rotation of the rake rod 1 and the sleeve rod 2, thereby making the rake leaf assembly and the scraper leaf assembly rotate in the reverse direction. Specifically, the motor 20 first drives the rake rod 1 to rotate, so that the first driving wheel 21 outside the rake rod 1 rotates, and the first driving wheel 21 drives the second driving wheel 24 to drive the shaft rod 23 to rotate inside the support seat 22 under the action of the driving belt 25. At this time, the rotation directions of the rake rod 1 and the shaft rod 23 are consistent. During the rotation of the shaft rod 23, it will drive the first gear 26 to rotate, and drive the second gear 27 to rotate through the first gear 26, and the second gear 27 will drive the sleeve rod 2 to rotate. Since the first gear 26 and the second gear 27 are meshingly connected, and then the second gear 27 drives the sleeve rod 2 to rotate, the sleeve rod 2 rotates in the opposite direction outside the rake rod 1, and then the rake rod 1 drives the rake leaf assembly and the sleeve rod 2 drives the scraper leaf assembly to show opposite movement trends.

[0037] Working principle of this utility model:

[0038] When the above structure is used in practice, when the material inside the dryer is stirred by the stirring structure, first, the motor 20 drives the rake rod 1 to rotate inside the dryer, so that the first driving wheel 21 outside the rake rod 1 rotates, and the first driving wheel 21 drives the second driving wheel 24 to drive the shaft rod 23 to rotate inside the support seat 22 under the action of the driving belt 25. During the rotation of the shaft rod 23, the first gear 26 is driven to rotate, and the second gear 27 is driven to rotate through the first gear 26, and the second gear 27 drives the sleeve rod 2 to rotate outside the rake rod 1, so that the sleeve rod 2 rotates in the opposite direction outside the rake rod 1;

[0039] During the rotation of the rake bar 1, the plurality of dragon blades 3 are driven to rotate, so as to achieve the effect of uniformly stirring and conveying the materials inside the dryer, and the sleeve bar 2 moves in the opposite direction outside the rake bar 1, which can drive the scraper 19 and the dragon blades 3 to rotate in the opposite direction. The scraper 19 can hang down and stir the materials attached to the inner wall of the dryer, and continuously mix and convey them with the reversely rotating dragon blades 3, thereby improving the stirring effect;

[0040] Furthermore, when the scraper 19 is worn and needs to be disassembled, firstly, the locking nut 18 at the positioning rod 16 is released, and the positioning plates 17 at both ends of the scraper 19 are separated from the positioning rod 16, so that the scraper 19 can be disassembled, and the insertion rod 15 at one end of the connecting rod 13 is screwed out from the internal thread of the insertion hole 14, so that the connecting rod 13 can be disassembled;

[0041] When installing the scraper 19, the connecting rod 13 can be threadedly connected to the surface of the sleeve rod 2 through the insertion rod 15 and the insertion hole 14, so that the insertion rod 15 is connected to the sleeve rod 2, and the positioning plates 17 at both ends of the scraper 19 are respectively sleeved on the outside of the positioning rod 16, and are locked by threading the locking nut 18 with the positioning rod 16, so that the installation of the scraper assembly can be realized;

[0042] When a certain dragon blade 3 is worn and needs to be replaced, the connection between every two adjacent dragon blades 3 is released, so that the bolt 12 is disengaged from the inside of the threaded hole, and the clamping plate 10 is disengaged from the inside of the clamping groove 11, and then the screws 9 at the embedded plate 6 and the rake rod 1 are released, the embedded plate 6 is taken out from the inside of the embedded groove 4, and the positioning block 7 is disengaged from the inside of the positioning groove 5, so that a single worn dragon blade 3 can be replaced;

[0043] When multiple dragon leaves 3 are assembled and installed on the outside of the rake rod 1, the embedded plates 6 at the multiple dragon leaves 3 are respectively embedded in the corresponding embedded grooves 4 opened in the rake rod 1, and the positioning block 7 is allowed to enter the inside of the positioning groove 5. At the same time, the embedded plates 6 are installed on the outside of the rake rod 1 by screws 9, so that the dragon leaves 3 can be installed on the outside of the rake rod 1.

[0044] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A stirring structure of a rake dryer, comprising a rake rod (1) installed inside a dryer housing, characterized in that: The rake rod (1) has a detachable rake blade assembly mounted on its exterior, two sleeve rods (2) are sleeved on the exterior of the rake rod (1), two sets of scraper blade assemblies are sleeved on the exterior of the two sleeve rods (2), and a driving structure is disposed at one end of the rake rod (1); The rake blade assembly comprises a plurality of dragon blades (3), wherein the plurality of dragon blades (3) are mounted on the outside of the rake rod (1), wherein the surface of the rake rod (1) is provided with a plurality of embedding grooves (4), wherein the embedding grooves (4) are provided with positioning grooves (5), and the bottom of each dragon blade (3) is provided with two embedding plates (6), wherein the bottom of the embedding plates (6) is provided with positioning blocks (7), and the connection between the embedding plates (6) and the rake rod (1) is provided with a plurality of mounting holes (8), wherein the interiors of the plurality of mounting holes (8) are provided with screws (9); The embedded plate (6) is embedded and installed inside the embedded groove (4), the positioning block (7) is located inside the positioning groove (5), and the embedded plate (6) is detachably installed inside the embedded groove (4) by means of screws (9); A clamping plate (10) is provided at one end of the Jiaolong blade (3), and a clamping groove (11) adapted to the structure of the clamping plate (10) is provided at the other end. A plurality of threaded holes are provided at the connection between the clamping plate (10) and the Jiaolong blade (3), and bolts (12) are installed in the internal threads of the threaded holes.

2. The stirring structure of a rake dryer according to claim 1, characterized in that: The sleeve rod (2) is rotatably connected to the outside of the rake rod (1); the scraper assembly comprises a connecting rod (13); the connecting rod (13) is mounted on the surface of the sleeve rod (2); an insertion hole (14) is provided on the surface of the sleeve rod (2); an insertion rod (15) is provided at one end of the connecting rod (13); the insertion rod (15) is threadedly connected to the insertion hole (14).

3. The stirring structure of a rake dryer according to claim 2, characterized in that: A positioning rod (16) is provided at the other end of the connecting rod (13), a positioning plate (17) is sleeved on the outside of the positioning rod (16), a locking nut (18) is threadedly mounted on the front side of the positioning plate (17) on the outside of the positioning rod (16), and a scraper (19) is fixedly mounted between the two positioning plates (17).

4. The stirring structure of a rake dryer according to claim 1, characterized in that: The driving structure comprises a motor (20), the output end of the motor (20) being coaxially connected to one end of a rake rod (1), a first driving wheel (21) being fixedly sleeved on the outside of the rake rod (1) and close to a side of the motor (20), a support seat (22) being provided at the bottom of the rake rod (1), a shaft (23) being rotatably provided inside the support seat (22), a second driving wheel (24) being fixedly sleeved on the outside of the shaft (23), and a driving belt (25) being sleeved on the outside of the first driving wheel (21) and the second driving wheel (24).

5. The stirring structure of a rake dryer according to claim 4, characterized in that: A first gear (26) is fixedly sleeved on the outside of the shaft rod (23) at one side of the second driving wheel (24), a second gear (27) is meshed on the top of the first gear (26), and the second gear (27) is fixedly sleeved on the outside of one of the sleeve rods (2).

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