CN214136892U

CN214136892U - Rotating shaft mechanism with 'cross hollow shaft' multi-blade structure

Info

Publication number: CN214136892U
Application number: CN202023080413.5U
Authority: CN
Inventors: 缪申羚
Original assignee: Avin Shanghai Machinery Co ltd
Current assignee: Avin Shanghai Machinery Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-09-07
Anticipated expiration: 2030-12-21

Abstract

The utility model relates to a rotating shaft mechanism with a 'hollow shaft crossed' multi-group blade structure in the technical field of hard plastic and soft plastic recovery, which comprises a main shaft capable of being driven to rotate, a movable blade mounting structure fixed on the main shaft, and a plurality of movable blade sets arranged around the axis of the main shaft and fixedly mounted on the movable blade mounting structure, wherein the movable blades of the movable blade sets are matched with fixed blades fixedly arranged on the inner wall of a crusher cavity to crush materials; the main shaft is arranged by two core shafts at two ends at opposite intervals, is connected with the movable knife mounting structure into a whole and is welded with the movable knife fixing block to form a hollow structure by taking the visual angle which is opposite to the axis of the main shaft as the standard; the length direction of each movable cutter group is inclined relative to the axis of the main shaft, and the inclination directions of any two adjacent movable cutter groups are opposite and form an included angle of 1-10 degrees; the hollow part in the middle section of the main shaft can reduce the resistance of materials in the working process so as to solve the problem that the recovery of special elastomer materials is difficult in the prior art.

Description

Rotating shaft mechanism with 'cross hollow shaft' multi-blade structure

Technical Field

The utility model relates to a hard plastic and soft plastics retrieve technical field, particularly, be a pivot mechanism with "hollow shaft crossing" multiunit blade structure.

Background

The application of elastomer materials in production and life is more and more extensive, because the elastomer materials have the stability, temperature resistance and sealing effect which cannot be provided by common plastics, and because the elastomer materials have low hardness and soft physical properties, the elastomer materials cannot be crushed and recycled by a common plastic crusher. The common plastic crusher crushes through the mode of striking or extrusion, easily makes the poor elastomer material of temperature resistance present the molten state after the friction of high frequency, causes the problem of smashing the recovery difficulty.

Disclosure of Invention

The utility model aims at providing a pivot mechanism with "hollow shaft crossing" multiunit blade structure to solve the problem of the elastic body material crushing recovery difficulty among the prior art.

The purpose of the utility model is realized like this: a kind of pivot organization with "cross type of hollow shaft" multiunit blade structure, locate in the cavity of the comminutor, including the main axis that can be driven to carry on the autorotation, and fix the mounting structure of moving knife on the main axis, and surround the axis of the main axis and fix several moving knife groups on the mounting structure of moving knife, the moving knife of the said moving knife group cooperates with stationary knife fixed in cavity inner wall of the comminutor in order to pulverize the supplies;

the spindle is formed by oppositely arranging two mandrels at two ends at intervals, is connected with the movable knife mounting structure into a whole and is welded with the movable knife fixing block to form a hollow structure;

the length direction of each movable cutter set inclines relative to the axis of the main shaft based on the visual angle opposite to the axis of the main shaft, and the inclination directions of any two adjacent movable cutter sets are opposite and form an included angle of 1-10 degrees.

Furthermore, each movable cutter set comprises a movable cutter with a cutting edge protruding towards the side direction and a movable cutter fixing block, the movable cutter fixing block is installed on the movable cutter installation structure, and the movable cutter is detachably installed on the movable cutter fixing block.

Furthermore, the movable knife fixing block is of an L-shaped plate structure with two mutually perpendicular plate surfaces, the plate surface of the movable knife is attached to one inner surface of the movable knife fixing block, and the knife back of the movable knife is attached to the other inner surface of the movable knife fixing block.

Furthermore, a plurality of movable knife fixing block mounting surfaces which are positioned and attached to the movable knife set one by one are arranged on the movable knife mounting structure, and the movable knife fixing block mounting surfaces are L-shaped and matched with and attached to two outer surfaces of the movable knife fixing blocks.

Furthermore, each movable knife group also comprises an adjusting component, and the adjusting component is connected with the movable knife so as to adjust the protruding size of the cutting edge of the movable knife to the side direction.

Furthermore, the adjusting component of each movable cutter group comprises a plurality of adjusting bolts, the movable cutter is provided with a plurality of movable cutter adjusting screw holes which are formed inwards from the cutter back of the movable cutter, the adjusting bolts are sleeved with adjusting nuts and are screwed into the movable cutter adjusting screw holes one by one, the adjusting nuts abut against the cutter back of the movable cutter, and the adjusting bolts abut against the inner face of the movable cutter fixing block.

Furthermore, each movable cutter set also comprises a movable cutter pressing plate and a plurality of fixing bolts, the length direction of the movable cutter pressing plate is parallel to the length direction of the movable cutter, the fixing bolts are arranged at intervals along the length direction of the movable cutter set, and the fixing bolts penetrate through the movable cutter pressing plate, the movable cutter and the movable cutter fixing block so as to enable the movable cutter pressing plate, the movable cutter and the movable cutter fixing block to be combined and fixed on the movable cutter mounting structure and enable the movable cutter pressing plate to press the movable cutter on the inner surface of the movable cutter fixing block.

Furthermore, the moving blade pressing plate is provided with moving blade fixing counter bores which are arranged at intervals along the length direction of the moving blade pressing plate, the arrangement direction of each row of moving blade fixing counter bores is parallel to the length direction of the moving blade group corresponding to the moving blade fixing counter bores, and the fixing bolts penetrate through the moving blade fixing counter bores one by one.

Furthermore, the movable knife is provided with a plurality of movable knife fixing long holes which are in a U-shaped opening structure and open towards the knife back direction, the plurality of movable knife fixing long holes are arranged at intervals along the length direction of the movable knife group, and the fixing bolts penetrate through the movable knife fixing long holes one by one.

Furthermore, the movable cutter mounting structure comprises two discs which are fixedly sleeved at the end parts of the opposite ends of the two mandrels respectively, and a plurality of convex structures which incline to the same direction are arranged along the peripheral direction of the discs; the convex structures are provided with moving blade fixing block mounting surfaces, and the moving blade fixing block mounting surfaces of the two discs are arranged in a staggered mode to form a plurality of rows and correspond to the moving blade groups one by one.

The beneficial effects of the utility model reside in that:

1. the utility model discloses a two dabber relative intervals set up and move knife tackle combination integrated formation hollow pivot mechanism in middle section, and reducible material is fit for smashing special elastomer material (like natural rubber, automobile tire etc.) at the resistance of work, also can be used to smash the duroplast, have that operating temperature is low, operating current is little, be difficult for transshipping, job stabilization's characteristics. In the crushing process, the material is not easy to block, and the materials with poor temperature resistance are not easy to be heated and adhered to each other due to impact, extrusion and friction to cause material blockage;

2. the slopes of the two adjacent groups of movable cutter groups are opposite to each other to form a crossed cutter structure, and materials are gathered in the left direction and the right direction in a balanced manner in the crushing process, so that a sufficient and efficient crushing effect is achieved, and the efficiency is greatly improved;

3. the staggered arrangement mode of the plurality of movable cutter groups can ensure that the movable cutters achieve the effect of uniform load in the crushing process, and effectively prolongs the service life of the movable cutters and the fixed cutters;

4. the movable knife is fixed by the movable knife fixing block and the movable knife pressing plate through the fixing bolt, so that the movable knife works more stably and reliably;

5. the movable knife can be repeatedly polished after being worn, and the rotating diameter of the movable knife can be adjusted to the original rotating diameter through the adjusting bolt after being polished, so that the service life of the movable knife is prolonged, and the cost is saved;

6. the crossed arrangement mode of the plurality of movable cutter groups can ensure that the cutting edge surfaces of the movable cutters and the fixed cutters are uniformly abraded at any time, thereby greatly prolonging the service life of the crushing cutter.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a structural diagram of a disc.

Fig. 3 is a mounting structure view of the movable blade fixing block.

Fig. 4 is an installation structure view of the movable cutter group.

Fig. 5 is an axial end view of the present invention.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Fig. 7 is a schematic structural diagram of the movable knife and the movable knife pressing plate.

Fig. 8 is an axial view angle installation diagram of the present invention.

In the figure: 1-a main shaft; 2-a disk; 3-mounting surface of the movable cutter fixing block; 4-moving the knife fixed block; 5-moving a knife group; 6-moving the knife; 7-moving knife pressing plate; 8-moving blade fixing slot holes; 9-moving blade adjusting screw holes; 10-moving blade fixing counter bore; 11-adjusting the bolt; 12-an adjusting nut; 13-fixed knife.

Detailed Description

The invention will be further described with reference to the accompanying figures 1-8 and the specific embodiments.

As shown in fig. 8, a rotating shaft mechanism with a "hollow shaft cross type" multi-blade structure is arranged in a cavity of a pulverizer, and includes a main shaft 1 capable of being driven to rotate, a movable blade mounting structure fixed on the main shaft 1, and a plurality of movable blade sets 5 arranged around the axis of the main shaft 1 and fixedly mounted on the movable blade mounting structure, wherein the movable blades 6 of the movable blade sets 5 are matched with fixed blades 13 fixedly arranged on the inner wall of the cavity of the pulverizer to pulverize materials.

As shown in fig. 1 and 4, the spindle 1 is formed by two spindles at two ends of the spindle at opposite intervals, is connected with the moving blade mounting structure into a whole, and is welded with the moving blade fixing block 4 to form a hollow structure. The hollow part in the middle section of the main shaft 1 can reduce the resistance of the material in the working process.

The visual angle of the axis of the main shaft 1 is used as the standard, the length direction of each movable cutter group 5 inclines relative to the axis of the main shaft 1, the inclination directions of any two adjacent movable cutter groups 5 are opposite, and an included angle theta of 1-10 degrees is formed, and the specific angle can be determined according to project requirements.

As shown in fig. 3, 5 and 6, each movable knife group 5 includes a movable knife 6 with a cutting edge protruding laterally and a movable knife fixing block 4, the movable knife fixing block 4 is mounted on the movable knife mounting structure, the movable knife 6 is detachably mounted on the movable knife fixing block 4, the movable knife fixing block 4 is an L-shaped plate structure with two mutually perpendicular plate surfaces, the plate surface of the movable knife 6 is attached to one inner surface of the movable knife fixing block 4, and the knife back of the movable knife 6 is attached to the other inner surface of the movable knife fixing block 4. As shown in fig. 5, the movable blade 6 is inclined to the rotation direction by a certain angle at the view of the shaft end, so as to shred the material, which is the prior art and will not be described herein.

As shown in fig. 2 and 3, in order to facilitate installation and positioning, the moving blade installation structure is provided with a plurality of moving blade fixing block installation surfaces 3 which are positioned and attached to the moving blade fixing blocks 4 of the moving blade group 5 one by one, and the moving blade fixing block installation surfaces 3 are arranged in an L shape and matched with and attached to two outer surfaces of the moving blade fixing blocks 4; the moving blade mounting structure comprises two discs 2 which are fixedly sleeved at the end parts of the opposite ends of the two mandrels respectively, and a plurality of convex structures which incline to the same direction are arranged along the peripheral direction of the discs 2; each protruding structure is provided with a moving blade fixing block mounting surface 3, and the moving blade fixing block mounting surfaces 3 of the two discs 2 are arranged in a staggered mode to form a plurality of rows and correspond to the moving blade sets 5 one by one. Due to the arrangement of the disk 2, the manufacturing difficulty is obviously reduced, and the manufacturing and mounting precision is improved; due to the arrangement of the movable knife fixing block mounting surface 3, the inclination angle of the movable knife 6 can be conveniently and accurately fixed subsequently.

As shown in fig. 5-7, each movable blade group 5 further includes an adjusting assembly, the adjusting assembly is connected with the movable blade 6 to adjust the protruding dimension of the cutting edge of the movable blade 6 in the lateral direction, the adjusting assembly of each movable blade group 5 includes a plurality of adjusting bolts 11, the movable blade 6 is provided with a plurality of movable blade adjusting screw holes 9 formed inwards from the blade back, adjusting nuts 12 are sleeved on the adjusting bolts 11, the adjusting bolts 11 are screwed into the movable blade adjusting screw holes 9 one by one, the adjusting nuts 12 abut against the blade back of the movable blade 6, and the adjusting bolts 11 abut against the inner surface of the movable blade fixing block 4. The ground movable knife 6 can be adjusted to the original rotary diameter of the movable knife through the adjusting assembly so as to ensure that the original optimal cutting angle of the movable knife 6 is achieved.

As shown in fig. 4 and 5, each movable blade group 5 further includes a movable blade pressing plate 7 and a plurality of fixing bolts, the length direction of the movable blade pressing plate 7 is parallel to the length direction of the movable blade 6, the plurality of fixing bolts are arranged at intervals along the length direction of the movable blade group 5, and the fixing bolts penetrate through the movable blade pressing plate 7, the movable blade 6 and the movable blade fixing block 4 to enable the three to be combined and fixed on the movable blade mounting structure, and enable the movable blade pressing plate 7 to press the movable blade 6 on the inner surface of the movable blade fixing block 4, so that the mounting structure of the movable blade 6 is very stable, and the use reliability is guaranteed; the moving blade pressing plate 7 is provided with moving blade fixing counter bores 10 which are arranged at intervals along the length direction of the moving blade pressing plate 7, the arrangement direction of each row of moving blade fixing counter bores 10 is parallel to the length direction of the moving blade group 5 corresponding to the moving blade fixing counter bores, and the fixing bolts penetrate through the moving blade fixing counter bores 10 one by one.

As shown in fig. 7, the moving blade 6 is provided with a plurality of moving blade fixing long holes 8 having a U-shaped opening structure and opening toward the blade back direction, the moving blade fixing long holes 8 are arranged at intervals along the length direction of the moving blade set 5, fixing bolts penetrate through the moving blade fixing long holes 8 one by one, and when the position of the moving blade 6 needs to be finely adjusted, the moving blade fixing long holes 8 play a role in guiding and adjusting the direction, so as to ensure the position accuracy of the moving blade 6 after adjustment.

The principle of the embodiment is as follows:

after the main shaft 1 which is hollow in the middle section and designed aiming at the special elastomer material is driven to rotate, the movable cutter group 5 is in a rotary motion state and is matched with the fixed cutter 13 which is fixedly arranged in the inner cavity of the crusher to crush the material, in the working process, the current is small, the overload is not easy, the work is stable, the material is not easy to block, and the materials with poor temperature resistance are not easy to be heated and adhered to each other due to impact and extrusion friction to cause material blockage.

The crossed blade structure can fully and efficiently crush materials, and meanwhile, the movable blade 6 is stressed uniformly, so that the service life of the blade is prolonged; in addition, the movable knife 6 is fixed on the movable knife fixing block 4 through a movable knife pressing plate 7 through a fixing bolt, so that the movable knife 6 is more stable and reliable in the working process. The movable knife 6 can be repeatedly polished after being worn, and the rotating diameter of the movable knife can be adjusted to the original rotating diameter through the adjusting bolt 13 after polishing, so that the service life of the movable knife 6 is prolonged, and the maintenance cost is reduced.

In order to ensure the installation accuracy of the movable cutter group 5, the following steps are adopted in the processing process of the embodiment:

1) firmly welding a welding piece (a main shaft 1, a disc 2 and a movable blade fixing block 4) on an automatic welding machine;

2) stress relief annealing;

3) processing the outer diameters of the two shaft ends of the main shaft 1 on a numerical control lathe;

4) and (3) placing a welding piece (the main shaft 1+ the disc 2+ the movable cutter fixing block 4) on a numerical control gantry mill, fixing the welding piece by using a tool clamp, and processing the positioning surface and the bolt hole of the movable cutter fixing block 4 according to the drawing size.

The above are preferred embodiments of the present invention, and those skilled in the art can make various changes or improvements on the above embodiments without departing from the general concept of the present invention, and such changes or improvements should fall within the protection scope of the present invention.

Claims

1. The utility model provides a pivot mechanism with "hollow shaft crossing" multiunit blade structure arranges the rubbing crusher cavity in, including main shaft (1) that can be driven and carry out the rotation to and fix the sword mounting structure that moves on main shaft (1), and encircle the axis of main shaft (1) arrange and fixed mounting move a plurality of sword groups (5) that move on the sword mounting structure, its characterized in that:

the spindle (1) is formed by oppositely arranging two mandrels at two ends at intervals, is connected with the movable knife mounting structure into a whole and is welded with the movable knife fixing block (4) to form a hollow structure;

the length direction of each movable cutter set (5) is inclined relative to the axis of the main shaft (1) by taking the visual angle which is opposite to the axis of the main shaft as the standard, and the inclination directions of any two adjacent movable cutter sets (5) are opposite and form an included angle of 1-10 degrees.

2. The spindle mechanism with a "hollow shaft cross" multi-blade structure as claimed in claim 1, wherein: each movable cutter set (5) comprises a movable cutter (6) with a cutting edge protruding towards the side direction and a movable cutter fixing block (4), the movable cutter fixing block (4) is installed on the movable cutter installation structure, and the movable cutter (6) is detachably installed on the movable cutter fixing block (4).

3. The spindle mechanism with a "hollow shaft cross" multi-blade structure as claimed in claim 2, wherein: the movable knife fixing block (4) is of an L-shaped plate structure with two mutually perpendicular plate surfaces, the plate surface of the movable knife (6) is attached to one inner surface of the movable knife fixing block (4), and the knife back of the movable knife (6) is attached to the other inner surface of the movable knife fixing block (4).

4. A spindle mechanism with a "hollow shaft cross" multiple blade configuration as claimed in claim 3, wherein: the movable knife mounting structure is provided with a plurality of movable knife fixing block mounting surfaces (3) which are positioned and attached to the movable knife groups (5) one by one, and the movable knife fixing block mounting surfaces (3) are L-shaped and matched and attached to two outer surfaces of the movable knife fixing blocks (4).

5. A spindle mechanism with a "hollow shaft cross" multiple blade configuration as claimed in claim 3, wherein: each movable knife group (5) further comprises an adjusting component, and the adjusting component is connected with the movable knife (6) to adjust the protruding size of the cutting edge of the movable knife (6) towards the side direction.

6. The spindle mechanism with a hollow shaft cross type multi-group blade structure according to claim 5, wherein: every moves the adjusting part of knife tackle (5) and includes a plurality of adjusting bolt (11), move sword (6) and be equipped with the inside sword of moving of seting up of a plurality of follow its back of a knife blade and adjust screw (9), the cover is equipped with adjusting nut (12) on adjusting bolt (11), adjusting bolt (11) twist one by one moves in sword regulation screw (9), adjusting nut (12) support and lean on the back of a knife blade that moves sword (6), adjusting bolt (11) support and lean on the inner face that moves sword fixed block (4).

7. The spindle mechanism with a hollow shaft cross type multi-group blade structure according to claim 5, wherein: every moves knife tackle (5) and still includes moves knife pressing board (7) and a plurality of fixing bolt, the length direction that moves knife pressing board (7) parallels with the length direction who moves knife (6), and above-mentioned a plurality of fixing bolt are arranged along the length direction interval of moving knife tackle (5), fixing bolt cross-under moves knife pressing board (7), moves knife (6), moves knife fixed block (4) so that the three combination is fixed on moving knife mounting structure to it will move knife (6) and press on the inner face that moves knife fixed block (4) to move knife pressing board (7).

8. The spindle mechanism with "hollow shaft cross" multi-blade structure as claimed in claim 7, wherein: move and set up a plurality of sword fixed slot holes (8) that U-shaped opening structure and opening towards the back of a knife blade direction on the sword (6), above-mentioned a plurality of sword fixed slot holes (8) are arranged along the length direction interval of moving knife tackle (5), fixing bolt passes sword fixed slot hole (8) one by one.

9. The spindle mechanism with "hollow shaft cross" multi-blade structure as claimed in claim 7, wherein: the movable knife pressing plate (7) is provided with movable knife fixing counter bores (10) which are arranged at intervals along the length direction of the movable knife pressing plate (7), the arrangement direction of each row of the movable knife fixing counter bores (10) is parallel to the length direction of the movable knife group (5) corresponding to the movable knife fixing counter bores, and the fixing bolts penetrate through the movable knife fixing counter bores (10) one by one.

10. The spindle mechanism with a hollow shaft cross type multi-group blade structure according to claim 4, wherein: the movable cutter mounting structure comprises two discs (2) which are fixedly sleeved at the end parts of the opposite ends of the two mandrels respectively, and a plurality of convex structures which incline to the same direction are arranged along the peripheral direction of the discs (2); each protruding structure is provided with a moving knife fixing block mounting surface (3), and the moving knife fixing block mounting surfaces (3) of the two discs (2) are arranged in a staggered mode to form a plurality of rows and correspond to the moving knife groups (5) one by one.