Bayonet type spiral blade structure of spiral classifier

Abstract

The utility model relates to the technical field of advanced manufacturing and automation, and discloses a bayonet lock type spiral blade structure of a spiral classifier, which comprises a spiral shaft and a spiral blade, one end of the spiral blade is provided with a clamping hole, the other end of the spiral blade is provided with a clamping opening, and a bayonet lock component is arranged outside the spiral shaft. A limiting top plate at the top end of a movable rod is pulled upwards, the movable rod slides upwards, a second spring is compressed, meanwhile, a limiting circular plate and a clamping sleeve move upwards along with the limiting circular plate, when the clamping sleeve is separated from a circular hole of a fixed outer barrel, the fixed outer barrel is sleeved with a clamping hole of a spiral blade, and after the spiral blade is preliminarily installed in place, the spiral blade is clamped in the clamping hole. The limiting top plate is loosened, the second spring releases the elastic force, the movable rod is pushed to slide downwards, the limiting circular plate and the clamping sleeve move downwards along with the movable rod, the clamping sleeve is connected with the fixed outer cylinder in a clamped mode through a circular hole, and the effect of tight clamping of the spiral blade is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to advanced manufacturing and automation technical field, concretely is a kind of spiral classifier key pin type spiral blade structure. BACKGROUND

[0002] In many industrial fields such as ore dressing, chemical industry, building materials, spiral classifier is a widely used equipment, its main function is to carry out granularity classification to mineral particles according to the settling velocity of mineral particles, and it plays a crucial role in production process. As the core component of spiral classifier, the structure design and performance of spiral blade directly affect the working efficiency, classification accuracy and service life of the classifier.

[0003] The connection mode of traditional spiral classifier spiral blade and spiral shaft has many drawbacks. Some are connected by welding, although the connection strength is higher, but in actual use process, if spiral blade appears wear, damage and other conditions, it is difficult to replace individually, often need to scrap the whole spiral blade together with part of spiral shaft, not only cause material waste, also increase equipment maintenance cost and downtime. Another way is to use bolt connection, although it is convenient to disassemble to a certain extent, but in the long-term working process, due to the vibration and impact working environment of spiral classifier, bolt is easy to loosen, which leads to the connection between spiral blade and spiral shaft loosening, displacement and other problems, affecting the normal operation and classification accuracy of the classifier. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of spiral classifier key pin type spiral blade structure, solve the technical problems that welding connection is used, although connection strength is higher, but in actual use process, if spiral blade appears wear, damage and other conditions, it is difficult to replace individually, reach the purpose of facilitating the disassembly of spiral blade.

[0005] To achieve the above object, the utility model provides the following technical scheme: a kind of spiral classifier key pin type spiral blade structure, including spiral shaft, spiral blade, the one end of the spiral blade is provided with clamping hole, the other end of the spiral blade is provided with clamping mouth, the outside of the spiral shaft is provided with key pin assembly, the spiral blade is connected with spiral shaft by key pin assembly.

[0006] Preferably, the key pin assembly includes: a first fixed component, arranged on the outside of the spiral shaft;Second fixed component, arranged in the inside of the first fixed component.

[0007] Preferably, the first fixed component includes: mounting sleeve, fixedly sleeved on the outside of the spiral shaft.

[0008] Preferably, the outer wall of the mounting sleeve is circumferentially equidistantly provided with a connecting rod, one end of the connecting rod is fixedly provided with a U-shaped mounting plate, the top and bottom of the U-shaped mounting plate are respectively provided with a sliding opening, the top and bottom of the U-shaped mounting plate are respectively and symmetrically fixedly provided with a fixed vertical plate, the fixed vertical plates are fixedly provided with a guide rod, and the outer wall of the guide rod is slidably provided with a movable plate.

[0009] The mounting sleeve is fixedly sleeved outside the spiral shaft, is connected with the U-shaped mounting plate through the circumferentially equidistantly arranged connecting rods, and forms a stable support system.

[0010] Preferably, the outer wall of the guide rod is sleeved with a spring one, one end of the spring one is fixedly connected with the fixed vertical plate, the other end of the spring one is fixedly connected with the movable plate, the movable plate is fixedly provided with a clamping column, the clamping column is movably penetrated through the sliding openings, is slidably connected with the U-shaped mounting plate through the sliding openings, and is matched with the clamping openings of the spiral blades through the clamping openings.

[0011] The elastic force of the spring one provides a continuous acting force for the movable plate, so that the clamping column fixedly connected with the movable plate can be tightly clamped in the clamping openings of the spiral blades. In the working process of the spiral classifier, the spiral shaft drives the spiral blades to rotate at a high speed, and meanwhile the spiral blades are subjected to impact force and friction force of materials.

[0012] Preferably, the second fixing component comprises a fixed outer cylinder fixedly arranged on the inner wall of the bottom of the U-shaped mounting plate, and a movable rod slidably sleeved on the top of the U-shaped mounting plate.

[0013] Preferably, the top of the fixed outer cylinder is provided with a circular hole, the outer wall of the circular hole is circumferentially equidistantly provided with a clamping groove, the inside of the fixed outer cylinder is fixedly provided with a clamping rod, the top end of the movable rod is fixedly provided with a limiting top plate, the outer wall of the movable rod is sleeved with a spring two, one end of the spring two is fixedly connected with the limiting top plate, the other end of the spring two is fixedly connected with the U-shaped mounting plate, and the bottom end of the movable rod is fixedly provided with a limiting circular plate.

[0014] The circular hole at the top of the fixed outer cylinder and the clamping grooves circumferentially equidistantly arranged on the outer wall thereof are matched with the clamping openings of the spiral blades and the clamping blocks on the outer wall of the clamping sleeve, so that accurate positioning and clamping can be realized.

[0015] Preferably, the bottom of the limiting circular plate is fixedly provided with a clamping sleeve, the clamping sleeve is matched with the clamping rod, the clamping sleeve is clampedly connected with the fixed outer cylinder through the circular hole, the outer wall of the clamping sleeve is circumferentially equidistantly provided with a clamping block, the clamping block is matched with the clamping groove, and the fixed outer cylinder is clampedly connected with the spiral blades through the clamping openings.

[0016] The close fit of the engaging block and the engaging slot and the adaptive connection of the engaging sleeve and the engaging rod form a strong connecting force between the spiral blade and the fixed outer cylinder.

[0017] The utility model provides a kind of pin-and-lock type spiral blade structure of spiral classifier.It has the following beneficial effects:

[0018] (1), the utility model discloses by pulling the limiting top plate of movable rod top end upward, movable rod slides upward, spring two is compressed, and simultaneously limiting round plate and engaging sleeve also move upward along with it, when engaging sleeve is separated from the round hole of fixed outer cylinder, the engaging hole of spiral blade is sleeved on fixed outer cylinder, after spiral blade is initially installed in place, release the elastic force of spring two, push movable rod to slide downward, limiting round plate and engaging sleeve move downward along with it, engaging sleeve is connected by round hole and fixed outer cylinder, reach the effect that spiral blade is tightly engaged.

[0019] (2), the utility model discloses by the limiting effect of engaging column to spiral blade through engaging hole after spiral blade is initially installed in place, the elastic force of spring one makes movable plate slide along guide rod, drives engaging column to slide in the sliding mouth of U-shaped mounting plate, further tightly engages in the engaging hole of spiral blade, preliminarily fixes spiral blade in circumferential direction, reach the effect that spiral blade is conveniently disassembled and assembled. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the overall structure perspective view of the utility model;

[0021] Figure 2 It is the overall structure exploded view of the utility model;

[0022] Figure 3 It is the pin-and-lock assembly structure view of the utility model;

[0023] Figure 4 It is the second fixed component structure sectional view of the utility model.

[0024] In the drawing: 1 spiral shaft, 2 spiral blade, 3 pin-and-lock assembly;

[0025] 31 first fixed component, 311 mounting sleeve, 312 connecting rod, 313 U-shaped mounting plate, 314 fixed vertical plate, 315 guide rod, 316 movable plate, 317 spring one, 318 engaging column;

[0026] 32 second fixed component, 321 fixed outer cylinder, 322 engaging rod, 323 movable rod, 324 limiting top plate, 325 spring two, 326 limiting round plate, 327 engaging sleeve, 328 engaging block. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts fall within the scope of the present application.

[0028] Examples of the described embodiments are shown in the drawings, in which the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0029] Embodiment one:

[0030] Based on the fact that the existing welding connection has high connection strength, but in actual use, if the spiral blade is worn, damaged or the like, it is difficult to replace the spiral blade alone, the preferred embodiment of the pin type spiral blade structure of the spiral classifier provided by the present application is as shown in Figures 1-4 The pin type spiral blade structure of the spiral classifier comprises a spiral shaft 1 and a spiral blade 2. One end of the spiral blade 2 is provided with a clamping hole, and the other end of the spiral blade 2 is provided with a clamping opening. The outer part of the spiral shaft 1 is provided with a pin assembly 3. The spiral blade 2 is connected with the spiral shaft 1 through the pin assembly 3. The pin assembly 3 comprises: a first fixed part 31 arranged on the outer part of the spiral shaft 1; and a second fixed part 32 arranged in the inner part of the first fixed part 31. The first fixed part 31 comprises: a mounting sleeve 311 fixedly sleeved on the outer part of the spiral shaft 1; a connecting rod 312 equidistantly mounted on the outer wall of the mounting sleeve 311; a U-shaped mounting plate 313 fixedly mounted on the other end of the connecting rod 312; a sliding opening arranged on the top and the bottom of the U-shaped mounting plate 313, respectively; a fixed vertical plate 314 fixedly mounted on the top and the bottom of the U-shaped mounting plate 313, respectively; a guide rod 315 fixedly mounted between the fixed vertical plates 314; an activity plate 316 slidingly sleeved on the outer wall of the guide rod 315; a spring 317 sleeved on the outer wall of the guide rod 315; one end of the spring 317 fixedly connected with the fixed vertical plate 314; the other end of the spring 317 fixedly connected with the activity plate 316; a clamping column 318 fixedly mounted between the activity plates 316; and the clamping column 318 movably penetrating through the sliding openings and slidingly connected with the U-shaped mounting plate 313 through the sliding openings. The clamping column 318 is matched with the spiral blade 2 through the clamping opening.

[0031] Further, in the embodiment, after the spiral blade 2 is initially installed in place, the clamping column 318 plays a certain limiting role on the spiral blade 2 through the clamping hole, the elastic force of the spring 317 makes the movable plate 316 slide along the guide rod 315, drives the clamping column 318 to slide in the sliding hole of the U-shaped mounting plate 313, and is further tightly clamped in the clamping hole of the spiral blade 2, so that the spiral blade 2 is preliminarily fixed in the circumferential direction.

[0032] Embodiment two:

[0033] On the basis of the first embodiment, the preferred embodiment of the pin type spiral blade structure of the spiral classifier provided by the utility model is as shown in the figure: Figures 1-4 As shown in the figure, the second fixing component 32 comprises: a fixed outer cylinder 321 fixedly installed at the bottom of the inner wall of the U-shaped mounting plate 313; a movable rod 323 slidably sleeved at the top of the U-shaped mounting plate 313; a circular hole is formed at the top of the fixed outer cylinder 321, a clamping groove is equidistantly formed on the outer wall circumference of the circular hole, a clamping rod 322 is fixedly installed in the interior of the fixed outer cylinder 321, a limiting top plate 324 is fixedly installed at the top end of the movable rod 323, a spring 325 is sleeved on the outer wall of the movable rod 323, one end of the spring 325 is fixedly connected with the limiting top plate 324, the other end of the spring 325 is fixedly connected with the U-shaped mounting plate 313, a limiting circular plate 326 is fixedly installed at the bottom end of the movable rod 323, a clamping sleeve 327 is fixedly installed at the bottom of the limiting circular plate 326, the clamping sleeve 327 is matched with the clamping rod 322, the clamping sleeve 327 is clamped and connected with the fixed outer cylinder 321 through the circular hole, and a clamping block 328 is equidistantly installed on the outer wall circumference of the clamping sleeve 327.

[0034] Further, in the embodiment, after the spiral blade 2 is initially installed in place, the clamping column 318 plays a certain limiting role on the spiral blade 2 through the clamping hole, the elastic force of the spring 317 makes the movable plate 316 slide along the guide rod 315, drives the clamping column 318 to slide in the sliding hole of the U-shaped mounting plate 313, and is further tightly clamped in the clamping hole of the spiral blade 2, so that the spiral blade 2 is preliminarily fixed in the circumferential direction.

[0035] In use, before the helical blade 2 is installed on the helical shaft 1, the pin assembly 3 is in the initial state, the mounting sleeve 311 of the first fixing part 31 is fixedly sleeved outside the helical shaft 1, the U-shaped mounting plate 313 is connected with the mounting sleeve 311 through the connecting rod 312, the spring 1 317 on the guide rod 315 is in the natural state or has a certain pre-tightening force, the movable plate 316 is located in the appropriate position under the action of the spring 1 317, the clamping column 318 is also in the corresponding position, the fixed outer cylinder 321 of the second fixing part 32 is fixed on the inner wall bottom of the U-shaped mounting plate 313, the movable rod 323 is sleeved on the top of the U-shaped mounting plate 313, and the spring 2 325 is also in the initial state. First, the clamping hole of the helical blade 2 is aligned with the clamping column 318, and the initial positioning can be smoothly performed since the clamping column 318 is matched with the clamping hole. In the installation process, the position of the helical blade 2 may need to be adjusted appropriately to ensure the accurate cooperation with the pin assembly 3. Then, the clamping hole of the helical blade 2 is aligned with the fixed outer cylinder 321. At this time, the limiting top plate 324 at the top end of the movable rod 323 is pulled upward, the movable rod 323 slides upward, the spring 2 325 is compressed, and the limiting round plate 326 and the clamping sleeve 327 also move upward at the same time. When the clamping sleeve 327 is separated from the round hole of the fixed outer cylinder 321, the clamping hole of the helical blade 2 is sleeved on the fixed outer cylinder 321. After the helical blade 2 is initially installed in place, the clamping column 318 plays a certain limiting role on the helical blade 2 through the clamping hole, the elastic force of the spring 1 317 makes the movable plate 316 slide along the guide rod 315, drives the clamping column 318 to slide in the sliding hole of the U-shaped mounting plate 313, further tightly clamps in the clamping hole of the helical blade 2, preliminarily fixes the helical blade 2 in the circumferential direction, and prevents the helical blade 2 from rotating randomly around the helical shaft 1. The limiting top plate 324 is loosened, the spring 2 325 releases the elastic force, pushes the movable rod 323 to slide downward, the limiting round plate 326 and the clamping sleeve 327 move downward at the same time, the clamping sleeve 327 is clamped and connected with the fixed outer cylinder 321 through the round hole, at the same time, the clamping blocks 328 equidistantly installed on the outer wall of the clamping sleeve 327 are matched with the clamping grooves equidistantly opened on the outer wall of the round hole of the fixed outer cylinder 321, and the clamping blocks 328 are tightly clamped, so that the fixed outer cylinder 321 is clamped and connected with the helical blade 2 through the clamping hole, and the helical blade 2 is further fixed in the axial and circumferential directions, and the helical blade 2 is firmly connected with the helical shaft 1. If the helical blade 2 needs to be disassembled, the limiting top plate 324 is pulled upward first, so that the clamping sleeve 327 is separated from the round hole of the fixed outer cylinder 321, the clamping blocks 328 are separated from the clamping grooves, then the elastic force of the spring 1 317 is overcome, the movable plate 316 is appropriately moved, the clamping column 318 is separated from the clamping hole of the helical blade 2, and finally the helical blade 2 can be taken off from the helical shaft 1.

[0036] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A pin-type screw blade structure of a screw classifier, comprising a screw shaft (1) and a screw blade (2), characterized in that: One end of the spiral blade (2) is provided with a clamping hole, the other end of the spiral blade (2) is provided with a clamping hole, the outer part of the spiral shaft (1) is provided with a clamping pin assembly (3), the spiral blade (2) is connected with the spiral shaft (1) through the clamping pin assembly (3).

2. A pin-lock type screw flight structure of a spiral classifier according to claim 1, characterized in that: The clamping pin assembly (3) comprises: A first fixed component (31) is arranged on the outer part of the spiral shaft (1); A second fixed component (32) is arranged on the inner part of the first fixed component (31).

3. A pin-locking screw flight structure for a spiral classifier according to claim 2, characterized in that: The first fixed component (31) comprises: A mounting sleeve (311) is fixedly sleeved on the outer part of the spiral shaft (1).

4. A spiral classifier key pin type spiral blade structure according to claim 3, characterized in that: The outer wall of the mounting sleeve (311) is circumferentially and equidistantly provided with a connecting rod (312), one end of the connecting rod (312) is fixedly provided with a U-shaped mounting plate (313), the top and bottom of the U-shaped mounting plate (313) are respectively provided with sliding holes, the top and bottom of the U-shaped mounting plate (313) are respectively and symmetrically fixedly provided with fixed vertical plates (314), the fixed vertical plates (314) are fixedly provided with guide rods (315) therebetween, and the outer wall of the guide rod (315) is slidably sleeved with movable plates (316).

5. A pin-locking screw flight structure for a spiral classifier according to claim 4, characterized in that: The outer wall of the guide rod (315) is sleeved with a spring (317), one end of the spring (317) is fixedly connected with the fixed vertical plate (314), the other end of the spring (317) is fixedly connected with the movable plate (316), the movable plates (316) are fixedly provided with clamping columns (318) therebetween, the two ends of the clamping column (318) are respectively movably penetrated through the sliding holes and are slidably connected with the U-shaped mounting plate (313) through the sliding holes, and the clamping column (318) is matched with the spiral blade (2) through the clamping hole.

6. A pin-lock type screw flight structure of a spiral classifier according to claim 2, characterized in that: The second fixed component (32) comprises: A fixed outer cylinder (321) is fixedly installed on the inner wall of the bottom of the U-shaped mounting plate (313); An active rod (323) is slidably sleeved on the top of the U-shaped mounting plate (313).

7. A spiral classifier key pin type spiral flight structure according to claim 6, characterized in that: The top of the fixed outer cylinder (321) is provided with a circular hole, the outer wall of the circular hole is circumferentially and equidistantly provided with a clamping groove, the inside of the fixed outer cylinder (321) is fixedly provided with a clamping rod (322), the top end of the active rod (323) is fixedly provided with a limiting top plate (324), the outer wall of the active rod (323) is sleeved with a spring (325), one end of the spring (325) is fixedly connected with the limiting top plate (324), the other end of the spring (325) is fixedly connected with the U-shaped mounting plate (313), and the bottom end of the active rod (323) is fixedly provided with a limiting circular plate (326).

8. A spiral classifier key pin type spiral flight structure according to claim 7, characterized in that: The bottom of the limiting circular plate (326) is fixedly provided with a clamping sleeve (327), the clamping sleeve (327) is matched with the clamping rod (322), the clamping sleeve (327) is clampedly connected with the fixed outer cylinder (321) through the circular hole, the outer wall of the clamping sleeve (327) is circumferentially and equidistantly provided with clamping blocks (328), the clamping blocks (328) are matched with the clamping grooves, and the fixed outer cylinder (321) is clampedly connected with the spiral blade (2) through the clamping hole.

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