CN215661762U

CN215661762U - Shear force adjustable single screw rod refiner

Info

Publication number: CN215661762U
Application number: CN202122053505.2U
Authority: CN
Inventors: 马瑞刚; 马亦骁; 王媛; 任增辉; 殷晓东
Original assignee: Shijiazhuang Zhuodu Rubber And Plastic Equipment Co ltd
Current assignee: Shijiazhuang Zhuodu Rubber And Plastic Equipment Co ltd
Priority date: 2021-08-27
Filing date: 2021-08-27
Publication date: 2022-01-28
Anticipated expiration: 2031-08-27

Abstract

The utility model provides a shear force adjustable single-screw refiner, which comprises a frame, a fixed charging barrel, a movable charging barrel and a conveying shear shaft, wherein the fixed charging barrel is arranged on the frame; a first power mechanism and a second power mechanism are arranged on the frame; one end of the fixed charging barrel is fixedly connected to the rack, the side wall of the fixed end is provided with a charging opening, and the other end of the fixed charging barrel extends along the horizontal direction; one end of the movable charging barrel is rotatably connected with the extending end of the fixed charging barrel, and the other end of the movable charging barrel extends along the axial direction of the fixed charging barrel; the conveying and shearing shaft comprises a screw conveying section and a shearing and discharging section, the screw conveying section is rotatably connected in the fixed material barrel and is connected with the output end of the first power mechanism, and the shearing and discharging section is positioned in the movable material barrel; the output end of the second power mechanism is connected with the movable charging barrel and is used for driving the movable charging barrel to rotate forwards or reversely. The shearing force adjustable single-screw refiner provided by the utility model can adjust the shearing force under the condition that the feeding speed is not changed, so that the production efficiency is prevented from being influenced by material blockage or reduction of the feeding speed.

Description

Shear force adjustable single screw rod refiner

Technical Field

The utility model belongs to the technical field of rubber refiners, and particularly relates to a shear force adjustable single-screw refiner.

Background

The rubber refiner is a device which utilizes the relative rotation between a roll shaft and a charging barrel to convey, extrude and shear materials, thereby changing the physical bonding structure inside rubber and obtaining regenerated rubber. The common refiners have various types such as single shaft, double shaft and multi-shaft, wherein the single-shaft refiner completes the operation processes of conveying, extruding, shearing and the like by utilizing a spiral conveying structure and a shearing discharging structure which are processed on a shaft body in a segmented mode to be matched with a cylinder wall. For materials with different components or physical properties, the technological requirements on shearing force are different, the magnitude of the shearing force is directly related to the rotating speed of the shaft body relative to the charging barrel, at present, a single-screw refiner can only adjust the shearing force by adjusting the rotating speed of the screw shaft, but the change of the rotating speed of the screw shaft is accompanied with the change of the material conveying efficiency, when the rotating speed is adjusted to be low due to the requirement of reducing the shearing force, the corresponding feeding efficiency is also reduced, so that the production efficiency is influenced, and when the rotating speed is adjusted to be high due to the requirement of improving the shearing force, the feeding amount is also increased, so that the problem of charging barrel blockage is caused.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a shear force adjustable single-screw refiner, and aims to solve the problem that the feeding speed is influenced by the shear force adjusting mode of the conventional single-screw refiner, so that the production efficiency is reduced or a charging barrel is blocked.

In order to achieve the purpose, the utility model adopts the technical scheme that: the shear force adjustable single-screw refiner comprises a frame, a fixed charging barrel, a movable charging barrel and a conveying shear shaft; wherein, a first power mechanism and a second power mechanism are arranged on the frame; one end of the fixed charging barrel is fixedly connected to the rack, the side wall of the fixed end is provided with a charging opening, and the other end of the fixed charging barrel extends along the horizontal direction; one end of the movable charging barrel is rotatably connected with the extending end of the fixed charging barrel, the other end of the movable charging barrel extends along the axial direction of the fixed charging barrel, the movable charging barrel is in sliding fit with the end wall of the fixed charging barrel, and the inner diameter of the movable charging barrel is consistent with that of the fixed charging barrel; the conveying and shearing shaft comprises a screw conveying section and a shearing and discharging section, the screw conveying section is rotationally connected in the fixed charging barrel along the axial direction of the fixed charging barrel and is connected with the output end of the first power mechanism, and the shearing and discharging section is positioned in the movable charging barrel; the output end of the second power mechanism is connected with the movable charging barrel and used for driving the movable charging barrel to rotate forwards or reversely.

In a possible implementation manner, a connecting sleeve is integrally formed on one end wall of the movable charging barrel, the connecting sleeve is rotatably sleeved on the peripheral wall of the extending end of the fixed charging barrel, and a sealing structure is arranged between the extending end wall of the fixed charging barrel and the end wall of the movable charging barrel.

In some embodiments, the seal structure includes a ring groove and a torus; wherein, the ring groove is arranged on the end wall of the movable charging barrel or the fixed charging barrel; the bulge loop integrated into one piece is on the end wall of fixed feed cylinder or activity feed cylinder, and the bulge loop stretches into in the annular, and slides along the circumference of fixed feed cylinder with the cell wall of annular and contradicts.

In some embodiments, the extending end of the fixed barrel is rotatably connected to the connecting sleeve by a bearing assembly.

Illustratively, a first positioning table is arranged on the peripheral wall of the extending end of the fixed material cylinder, the extending end of the fixed material cylinder is screwed with a positioning ring, and the positioning ring and the first positioning table are matched to clamp the bearing assembly; the inner peripheral wall of the connecting sleeve is provided with a second positioning table, the end wall of the connecting sleeve is connected with a bearing end cover, and the bearing end cover and the second positioning table are matched to clamp the bearing assembly.

Illustratively, the bearing assembly is a combination of at least two thrust bearings, or a combination of a roller bearing and a pressure bearing.

In one possible implementation mode, the second power mechanism comprises a gear ring which is fixedly sleeved on the movable charging barrel and a variable frequency motor which is fixedly connected to the rack; wherein, the output end of the variable frequency motor is provided with a gear, and the gear is meshed with the gear ring.

In some embodiments, the machine frame is provided with a rotary supporting arm, and a rotary part of the rotary supporting arm is sleeved on the movable charging barrel.

The shear force adjustable single-screw refiner provided by the utility model has the beneficial effects that: compared with the prior art, the shearing force adjustable single-screw refiner has the advantages that after materials enter the fixed charging barrel from the charging opening, the first power mechanism drives the conveying shearing shaft to rotate, the movable charging barrel is attached to the end wall of the fixed charging barrel, the inner diameters of the movable charging barrel and the fixed charging barrel are consistent, so the materials can be smoothly fed into the shearing discharging section under the spiral extrusion action of the screw conveying section, then the regenerated rubber products are obtained after repeated extrusion and shearing at the shearing discharging section and are discharged from the extending end of the movable charging barrel, the movable charging barrel is driven to rotate forwards through the second power mechanism, the relative rotating speed between the shearing discharging section and the movable charging barrel can be reduced, the shearing force of the shearing discharging section is reduced, otherwise, the second power mechanism drives the movable charging barrel to rotate backwards, the relative rotating speed between the shearing discharging section and the movable charging barrel can be increased, the shearing force of the shearing discharging section is increased, and the rotating speed of the conveying shearing shaft does not need to be adjusted in the shearing force adjusting process, therefore, the feeding efficiency of the screw conveying section to the shearing discharging section can be prevented from being influenced, so that the stable production efficiency can be ensured, and the phenomenon that the material blocks the material barrel is avoided.

Drawings

FIG. 1 is a schematic structural diagram of a shear force adjustable single screw refiner according to an embodiment of the present invention;

FIG. 2 is a schematic view of a portion A of FIG. 1;

fig. 3 is a schematic view of the disassembled structure of the fixed charging barrel and the movable charging barrel adopted by the embodiment of the utility model.

In the figure: 1. a frame; 11. a first power mechanism; 12. a second power mechanism; 121. a ring gear; 122. a variable frequency motor; 123. a gear; 13. a swivel support arm; 131. a supporting seat; 132. fixing a sleeve; 133. a slew bearing; 2. fixing the charging barrel; 21. a positioning ring; 22. a first positioning table; 3. a movable charging barrel; 31. connecting sleeves; 311. a bearing end cap; 312. a second positioning table; 32. a sealing structure; 321. a ring groove; 322. a convex ring; 4. conveying the shear shaft; 41. a screw conveying section; 42. a shearing and discharging section; 5. a bearing assembly.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1, a shear force adjustable single screw refiner according to the present invention will now be described. The shear force adjustable single-screw refiner comprises a frame 1, a fixed charging barrel 2, a movable charging barrel 3 and a conveying shear shaft 4; wherein, the frame 1 is provided with a first power mechanism 11 and a second power mechanism; one end of the fixed charging barrel 2 is fixedly connected to the frame 1, the side wall of the fixed end is provided with a charging opening, and the other end extends along the horizontal direction; one end of the movable charging barrel 3 is rotatably connected with the extending end of the fixed charging barrel 2, the other end of the movable charging barrel extends along the axial direction of the fixed charging barrel 2, the movable charging barrel 3 is in sliding fit with the end wall of the fixed charging barrel 2, and the inner diameter of the movable charging barrel 3 is consistent with that of the fixed charging barrel 2; the conveying and shearing shaft 4 comprises a screw conveying section 41 and a shearing and discharging section 42, the screw conveying section 41 is rotatably connected in the fixed charging barrel 2 along the axial direction of the fixed charging barrel 2 and is connected with the output end of the first power mechanism 11, and the shearing and discharging section 42 is positioned in the movable charging barrel 3; wherein, the output end of the second power mechanism 12 is connected with the movable charging barrel 3 and is used for driving the movable charging barrel 3 to rotate forwards or backwards.

It should be noted that, because the movable barrel 3 is subjected to axial force during the process of extruding and shearing materials, the rotary connection between the fixed barrel 2 and the movable barrel 3 should ensure axial bearing capacity, specifically, the rotary connection can be realized by arranging a bearing combination with radial bearing capacity, and in addition, in order to avoid the materials from extruding into the gap at the connection position of the movable barrel 3 and the fixed barrel 2, the position of the joint end surface of the movable barrel 3 and the fixed barrel 2 should be in sliding fit relation, so the finish machining of the end walls of the movable barrel 3 and the fixed barrel 2 should be ensured.

Compared with the prior art, the shear force adjustable single screw refiner provided by the embodiment has the advantages that after materials enter the fixed charging barrel 2 from the charging hole, the first power mechanism 11 drives the conveying shear shaft 4 to rotate, because the end walls of the movable charging barrel 3 and the fixed charging barrel 2 are attached and the inner diameters are consistent, the materials can be smoothly fed into the shearing discharge section 42 under the spiral extrusion action of the screw conveying section 41, then the regenerated rubber products are obtained after repeated extrusion and shearing in the shearing discharge section 42 and are discharged from the extension end of the movable charging barrel 3, the relative rotation speed between the shearing discharge section 42 and the movable charging barrel 3 can be reduced by driving the movable charging barrel 3 to rotate forwards through the second power mechanism 12, so that the shear force of the shearing discharge section 42 is reduced, otherwise, the relative rotation speed between the shearing discharge section 42 and the movable charging barrel 3 can be improved by driving the movable charging barrel 3 to rotate backwards through the second power mechanism 12, thereby heighten the shearing force of the shearing discharge section 42, and because the rotating speed of the conveying shearing shaft 4 does not need to be adjusted in the shearing force adjusting process, the feeding efficiency of the screw conveying section 41 to the shearing discharge section 42 can be avoided from being influenced, thereby ensuring the stable production efficiency and avoiding the phenomenon that the material blocks the material barrel.

In some embodiments, referring to fig. 1 to 3, a connecting sleeve 31 is integrally formed on one end wall of the movable barrel 3, the connecting sleeve 31 is rotatably sleeved on the outer peripheral wall of the extending end of the fixed barrel 2, and a sealing structure 32 is arranged between the extending end wall of the fixed barrel 2 and the end wall of the movable barrel 3. Realize the rotation of activity feed cylinder 3 and fixed feed cylinder 2 through setting up adapter sleeve 31 and be connected, simple structure is stable, and can avoid the material to crowd into the end wall joint position of activity feed cylinder 3 and fixed feed cylinder 2 through seal structure 32 to avoid the material to leak, improve operating stability.

As an embodiment of the sealing structure 32, referring to fig. 2 and 3, the sealing structure 32 includes a ring groove 321 and a convex ring 322; wherein, the ring groove 321 is arranged on the end wall of the movable charging barrel 3 or the fixed charging barrel 2; the protruding ring 322 is integrally formed on the end wall of the fixed charging barrel 2 or the movable charging barrel 3, and the protruding ring 322 extends into the ring groove 321 and is in sliding contact with the groove wall of the ring groove 321 along the circumferential direction of the fixed charging barrel 2. The embedding structure of the convex ring 322 and the ring groove 321 can form labyrinth-like seal, so that material leakage is avoided, and of course, the processing precision of the inner and outer annular surfaces of the convex ring 322 and the two side groove walls of the ring groove 321 should be guaranteed, so that the convex ring 322 can rotate in the ring groove 321 conveniently and flexibly, and the ring surfaces of the two sides of the convex ring 322 can be tightly attached to the two side groove walls of the ring groove 321.

In some possible implementations, as will be understood in conjunction with fig. 1 to 3, the extending end of the fixed barrel 2 is rotatably connected to the connecting sleeve 31 by a bearing assembly 5. The resistance to rotation of the movable cartridge 3 relative to the fixed cartridge 2 can be reduced by providing the bearing assembly 5, while also facilitating axial positioning of the movable cartridge 3 by positioning the bearing assembly 5.

Specifically, in the present embodiment, the peripheral wall of the extending end of the fixed barrel 2 is provided with a first positioning table 22, and the extending end of the fixed barrel 2 is screwed with a positioning ring 21, and the positioning ring 21 and the first positioning table 22 cooperate to clamp the bearing assembly 5; the inner peripheral wall of the connecting sleeve 31 is provided with a second positioning table 312, the end wall of the connecting sleeve 31 is connected with a bearing end cover 311, and the bearing end cover 311 and the second positioning table 312 are matched to clamp the bearing assembly 5. Before the movable charging barrel 3 is installed, firstly, the bearing assembly 5 is sleeved at the extending end of the fixed charging barrel 2, then the positioning ring 21 is screwed, the bearing assembly 5 is clamped with the first positioning table 22 in a matching mode to realize axial positioning, then the connecting sleeve 31 is sleeved on the bearing assembly 5, the movable charging barrel 3 is pushed until the bearing assembly 5 is abutted to the second positioning table 312, the bearing end cover 311 is fixed on the end wall of the connecting sleeve 31 to compress the bearing assembly 5, and therefore the axial positioning of the movable charging barrel 3 is realized, the structure is simple and stable, the axial bearing capacity is high, and the dismounting and the mounting are convenient.

Optionally, the bearing assembly 5 in this embodiment is a combination of at least two thrust bearings, or a combination of a roller bearing and a pressure bearing. The two thrust bearings are combined back-to-back or face-to-face, and of course, since the movable barrel 3 is mainly subjected to an axial force in a direction away from the fixed barrel 2, two or more thrust bearings facing the fixed barrel 2 may be provided; if a combination of a roller bearing and a pressure bearing is adopted, one or more roller bearings can be used to ensure the rotational stability, and the pressure bearing is used to provide the axial bearing force, it should be noted herein that the pressure bearing is located such that one side of the pressure bearing is pressed against the inner ring or the outer ring of the roller bearing, and the other side of the pressure bearing is pressed against the positioning ring 21 or the inner end cover of the bearing, so as to ensure the relative rotation between the movable charging barrel 3 and the fixed charging barrel 2 to be flexible and light while providing the axial bearing force.

As a specific embodiment of the second power mechanism 12, please refer to fig. 1, the second power mechanism 12 includes a gear ring 121 fixed on the movable barrel 3 in a sleeved manner and a variable frequency motor 122 fixedly connected to the frame 1; wherein, the output end of the variable frequency motor 122 is provided with a gear 123, and the gear 123 is meshed with the gear ring 121. Drive gear 123 through inverter motor 122 and rotate to drive ring gear 121 and activity feed cylinder 3 and rotate in the lump, transmission simple structure is stable, adopts inverter motor 122 here can conveniently adjust its rotational speed and just reversing, thereby conveniently adjusts the rotational speed of activity feed cylinder 3 and turns to, and then conveniently adjusts the size of shearing force.

In order to improve the overall connection stability of the movable charging barrel 3 and the fixed charging barrel 2, please refer to fig. 1, a rotary supporting arm 13 is arranged on the frame 1, and a rotary part of the rotary supporting arm 13 is sleeved on the movable charging barrel 3. The specific structure of the rotary support arm 13 includes a support seat 131 fixed on the frame 1 and a fixed sleeve 132 disposed on the top of the support seat 131, the fixed sleeve 132 is embedded with a rotary bearing 133, and the rotary bearing 133 is sleeved on the outer wall of the movable charging barrel 3, so that the rotary freedom of the movable charging barrel 3 is ensured and simultaneously a supporting force is provided for the movable charging barrel 3.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. Single screw rod refiner with adjustable shearing force, characterized by, includes:

the device comprises a rack, wherein a first power mechanism and a second power mechanism are arranged on the rack;

one end of the fixed material barrel is fixedly connected to the rack, a feeding port is formed in the side wall of the fixed end, and the other end of the fixed material barrel extends in the horizontal direction;

one end of the movable charging barrel is rotatably connected with the extending end of the fixed charging barrel, the other end of the movable charging barrel extends along the axial direction of the fixed charging barrel, the movable charging barrel is in sliding fit with the end wall of the fixed charging barrel, and the inner diameter of the movable charging barrel is consistent with that of the fixed charging barrel;

the conveying and shearing shaft comprises a screw conveying section and a shearing and discharging section, the screw conveying section is rotationally connected in the fixed charging barrel along the axial direction of the fixed charging barrel and is connected with the output end of the first power mechanism, and the shearing and discharging section is positioned in the movable charging barrel;

the output end of the second power mechanism is connected with the movable charging barrel and used for driving the movable charging barrel to rotate forwards or reversely.

2. The shear force adjustable single screw refiner of claim 1, wherein a connecting sleeve is integrally formed on one end wall of the movable charging barrel, the connecting sleeve is rotatably sleeved on the peripheral wall of the extending end of the fixed charging barrel, and a sealing structure is arranged between the extending end wall of the fixed charging barrel and the end wall of the movable charging barrel.

3. The shear-force-adjustable single screw refiner of claim 2 wherein said sealing structure comprises:

the annular groove is arranged on the end wall of the movable charging barrel or the fixed charging barrel;

the bulge loop, integrated into one piece in fixed feed cylinder or on the end wall of activity feed cylinder, the bulge loop stretches into in the annular, and with the cell wall of annular is followed the circumference of fixed feed cylinder slides and contradicts.

4. The shear force adjustable single screw refiner of claim 2, wherein said extension end of said fixed barrel and said connecting sleeve are rotatably connected by a bearing assembly.

5. The shear force adjustable single screw refiner of claim 4, wherein said fixed barrel has a first positioning table on its extension end peripheral wall, and a positioning ring is screwed on the extension end of said fixed barrel, said positioning ring and said first positioning table cooperate to clamp said bearing assembly; the bearing assembly is characterized in that a second positioning table is arranged on the inner peripheral wall of the connecting sleeve, a bearing end cover is connected to the end wall of the connecting sleeve, and the bearing end cover and the second positioning table are matched to clamp the bearing assembly.

6. The shear-adjustable single screw refiner of claim 5 wherein said bearing assembly is a combination of at least two thrust bearings or a combination of roller bearings and pressure bearings.

7. The shear force adjustable single screw refiner of claim 1 wherein said second power mechanism comprises:

the gear ring is fixedly sleeved on the movable charging barrel;

the variable frequency motor is fixedly connected to the rack, a gear is arranged at the output end of the variable frequency motor, and the gear is meshed with the gear ring.

8. The shear-force-adjustable single-screw refiner of any one of claims 1 to 7, wherein a rotary support arm is provided on the frame, and a rotary part of the rotary support arm is fitted over the movable barrel.