Lubricating and sealing device of internal mixing equipment

Abstract

The utility model relates to the technical field of rubber and plastic rubber mixing equipment, in particular to a lubricating and sealing device of mixing equipment, which comprises a mixing tank, side wall plates, a main stirring shaft, a driven stirring shaft, a support and a bearing seat, a W-groove water channel is arranged on the outer wall surface of the mixing tank, the side wall plates are arranged on two sides of the mixing tank, and the mixing tank and the side wall plates on the two sides are connected to form a mixing chamber. A side water channel is arranged on the outer wall face of each side wall plate, a bearing seat is arranged on the side wall plate on the outer side of the internal mixing chamber, the two ends of the main stirring shaft and the two ends of the driven stirring shaft penetrate through the two sides of the internal mixing chamber, and material sealing devices are arranged at the positions where the two ends of the main stirring shaft and the two ends of the driven stirring shaft are matched with the side wall plates on the two sides. And continuous oil injection is performed on the wear-resistant layer, so that the effect of lubricating the sealing material between the stirring shaft and the internal mixing chamber is realized, the running-in noise of the sealing material wear-resistant ring is reduced, the service life of the sealing material wear-resistant ring is prolonged, and the sealing material wear-resistant ring is suitable for internal mixing of various different rubber and plastic materials at different speeds.

Description

Technical Field

[0001] The utility model relates to the technical field of rubber and plastic internal mixer equipment, and particularly refers to a lubricating and sealing device for an internal mixer. Technical Background

[0002] In the process of rubber and plastic internal mixing, internal mixers are widely used production equipment. Currently, for tipping type (meshing type and shearing type) internal mixers and dropping type (meshing type and shearing type) internal mixers, during the rubber mixing process, the connection between the internal mixing chamber and the stirring shaft only uses a flange combined with an ordinary sealing ring for sealing the material, and neither can achieve the purpose of efficient lubricating and sealing. Moreover, water cannot be passed around the flange seat for cooling, so it can only be dry ground at high temperature, resulting in a reduction in the rotational speed of the stirring shaft, a decrease in production efficiency, the generation of running-in noise during the production process, an accelerated loss of the sealing ring, a reduction in the sealing effect, and an impact on the normal use of the equipment. Content of the Utility Model

[0003] The purpose of the utility model is to address the deficiencies of the prior art and provide a lubricating and sealing device for an internal mixer. Its structure is scientific and simple. By adding wear-resistant layers and static sealing rings for the material at both ends of the stirring shaft and continuously injecting oil into the wear-resistant layers, the effect of lubricating and sealing between the stirring shaft and the internal mixing chamber is achieved, and the running-in noise of the sealing and wear-resistant ring is reduced; the tightness of the static ring flange of the sealing device can be adjusted to improve the sealing performance between the stirring shaft and the internal mixing chamber; by cooling the internal mixing chamber and the stirring shaft by passing water, during the high-speed internal mixing process of the stirring shaft, the temperature can be controlled. While reducing the temperature of the internal mixing chamber, the service life of the sealing and wear-resistant ring is extended, and it is suitable for internal mixing of various different rubber and plastic materials at different speeds.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A lubricating and sealing device for an internal mixer includes an internal mixing tank, side wall plates, a main stirring shaft, a passive stirring shaft, supports, and bearing seats. The internal mixing tank has a W-shaped structure, and a W-groove water channel is arranged on the outer wall surface of the internal mixing tank. Side wall plates are arranged on both sides of the internal mixing tank. The internal mixing tank is connected to the side wall plates on both sides to form an internal mixing chamber. A side water channel is arranged on the outer wall surface of the side wall plate. Bearing seats are arranged on the outer side wall plates of the internal mixing chamber. The main stirring shaft and the passive stirring shaft are both arranged inside the internal mixing chamber. The two ends of the main stirring shaft and the passive stirring shaft penetrate to both sides of the internal mixing chamber and are movably connected to the bearing seats on both sides of the internal mixing chamber. There are two supports, which are arranged below the bearing seats at both ends of the main stirring shaft. Water-cooled rotary joints are arranged at the ends of the main stirring shaft and the passive stirring shaft on the same side. Sealing devices are arranged at the joints between the two ends of the main stirring shaft and the passive stirring shaft and the side wall plates on both sides;

[0006] The side wall panel is of a double-layer structure. The side water channel is arranged on the outer wall surface of the inner-layer wall panel. Water inlet and outlet holes are arranged at the lower part of the side water channel. Two bearing mounting holes are arranged on the outer-layer wall panel of the side wall panel. The bearing seat is correspondingly connected to the mounting holes on the outer layer of the side wall panel. A flange seat is arranged at the position corresponding to the bearing mounting hole on the inner-layer wall panel of the side wall panel, and a static ring oil injection hole is arranged on the flange seat.

[0007] The sealing device includes a locking screw, a static ring flange, a wear-resistant static ring, and a wear-resistant sleeve. One end of the locking screw is fixed on the inner-layer wall panel of the side wall panel. The static ring flange is arranged between the flange seat, the main stirring shaft, and the driven stirring shaft. The static ring flange is positioned by the locking screw. The wear-resistant static ring and the wear-resistant sleeve are arranged at both ends of the main stirring shaft and the driven stirring shaft and are attached to the static ring flange. The wear-resistant sleeve is arranged at both ends of the main stirring shaft and the driven stirring shaft and is attached to the stirring blade. A compression spring and a locking nut are arranged at the other end of the locking screw.

[0008] The main stirring shaft and the driven stirring shaft are arranged in parallel. Stirring blades are arranged on both the main stirring shaft and the driven stirring shaft inside the internal mixer chamber.

[0009] Water inlet joints are arranged on both side surfaces of the W-groove water channel on the outer wall surface of the internal mixer tank. A water outlet joint is arranged on the bottom surface of the W-groove water channel. A temperature sensor is also arranged at the middle position of the bottom of the internal mixer tank.

[0010] The static ring oil injection hole on the flange seat of the side wall panel corresponds to the wear-resistant sleeve of the sealing device.

[0011] The above technical solutions have the following beneficial effects compared with the prior art:

[0012] 1. For the lubricating and sealing device of the internal mixer of the present utility model, by adding a wear-resistant static ring and a wear-resistant sleeve at both ends of the stirring shaft and adding an oil injection hole to continuously inject oil into the wear-resistant sleeve, the running-in noise during the working process of the stirring shaft is effectively reduced, and the lubrication degree of the high-speed rotation of the stirring shaft is improved;

[0013] 2. For the lubricating and sealing device of the internal mixer of the present utility model, by adjusting the tightness of the static ring flange through the locking nut on the sealing device, the tightness between the wear-resistant static ring and the wear-resistant sleeve can be effectively controlled, the sealing effect between the stirring shaft and the internal mixer chamber is improved, and the situation of powder leakage and material leakage is prevented;

[0014] 3. For the lubricating and sealing device of the internal mixer of the present utility model, by arranging water channels on the outer sides of the internal mixer tank and the side wall panel and inside the stirring shaft, the high temperature generated during the internal mixing process can be reduced. By arranging a temperature sensor at the bottom of the internal mixer tank, the temperature during the working process of the internal mixer chamber can be monitored in real time, and the service life of the wear-resistant static ring and the wear-resistant sleeve is improved. Description of the Drawings

[0015] Figure 1It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a top view schematic diagram of the present utility model;

[0017] Figure 3 It is a bottom view schematic diagram of the present utility model;

[0018] Figure 4 It is a top view sectional schematic diagram of the present utility model;

[0019] Figure 5 It is a front view sectional schematic diagram of the present utility model;

[0020] Figure 6 It is a schematic structural diagram of the side wall panel of the present utility model;

[0021] Figure 7 It is a schematic diagram of the side wall panel of the present utility model in another direction;

[0022] Figure 8 It is the present utility model Figure 4 An enlarged view of part A in the present utility model;

[0023] Figure 9 It is the present utility model Figure 5 An enlarged view of part B in the present utility model. Specific embodiments

[0024] The principles and features of the present utility model are described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model. In the following paragraphs, the present utility model is described more specifically by way of example with reference to the accompanying drawings. The advantages and features of the present utility model will be more clearly understood from the following description and the claims. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise scales, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present utility model.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model herein are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or / a number of" used herein includes any and all combinations of one or more of the related listed items.

[0026] Such as Figures 1 to 9As shown in the figure: A lubricating and sealing device for a kneading equipment of the present utility model includes a kneading tank 1, side wall plates 2, a main stirring shaft 3, a driven stirring shaft 4, supports 5, and bearing seats 6. The kneading tank 1 is of a W-shaped structure. A W-groove water channel 11 is provided on the outer wall surface of the kneading tank 1. Side wall plates 2 are provided on both sides of the kneading tank 1. The kneading tank 1 is connected to the side wall plates 2 on both sides to form a kneading chamber 10. A side water channel 21 is provided on the outer wall surface of the side wall plate 2. Bearing seats 6 are provided on the side wall plates 2 outside the kneading chamber 10. The main stirring shaft 3 and the driven stirring shaft 4 are both arranged inside the kneading chamber 10. Both ends of the main stirring shaft 3 and the driven stirring shaft 4 penetrate to both sides of the kneading chamber 10 and are movably connected to the bearing seats 6 on both sides of the kneading chamber 10. There are two supports 5, and the supports 5 are arranged below the bearing seats 6 at both ends of the main stirring shaft 3. Water-cooled rotary joints 7 are provided at the ends of the main stirring shaft 3 and the driven stirring shaft 4 on the same side. Sealing devices 8 are provided at the joints of both ends of the main stirring shaft 3 and the driven stirring shaft 4 and the side wall plates 2 on both sides;

[0027] The side wall plate 2 is of a double-layer structure. The side water channel 21 is provided on the outer wall surface of the inner wall plate. Water inlet and outlet holes 22 are provided at the lower part of the side water channel 21. Two bearing mounting holes 20 are provided on the outer wall plate of the side wall plate 2. The bearing seat 6 is correspondingly connected to the mounting hole 20 on the outer layer of the side wall plate 2. A flange seat 23 is provided at the position of the inner wall plate of the side wall plate 2 corresponding to the bearing mounting hole 20. A static ring oil injection hole 230 is provided on the flange seat 23.

[0028] The sealing device 8 includes a locking screw 80, a static ring flange 81, a wear-resistant static ring 82, and a wear-resistant sleeve 83. One end of the locking screw 80 is fixed on the inner wall plate of the side wall plate 2. The static ring flange 81 is arranged between the flange seat 23 and the main stirring shaft 3 and the driven stirring shaft 4. The static ring flange 81 is positioned by the locking screw 80. The wear-resistant static ring 82 and the wear-resistant sleeve 83 are arranged at both ends of the main stirring shaft 3 and the driven stirring shaft 4 and are attached to the static ring flange 81. The wear-resistant sleeve 83 is arranged at both ends of the main stirring shaft 3 and the driven stirring shaft 4 and is attached to the stirring blade 9. A compression spring 84 and a locking nut 85 are provided at the other end of the locking screw 80. By adjusting the tightness of the static ring flange 81 through the locking nut 85 on the sealing device 8, the tightness between the wear-resistant static ring 82 and the wear-resistant sleeve 83 can be effectively controlled, the sealing effect between the stirring shaft and the kneading chamber can be improved, and the situation of powder leakage and material leakage can be prevented.

[0029] The main stirring shaft 3 and the driven stirring shaft 4 are arranged in parallel. Stirring blades 9 are arranged on both the main stirring shaft 3 and the driven stirring shaft 4 inside the kneading chamber 10.

[0030] On both sides of the water channel 11 of the W groove on the outer wall surface of the internal mixer tank 1, there are water inlet joints 12, and on the bottom surface of the W groove water channel 11, there is a water outlet joint 14. In the middle position at the bottom of the internal mixer tank 1, there is also a temperature sensor 13. By arranging water channels on the outside of the internal mixer tank 1 and the side wall plate 2, as well as inside the main stirring shaft 3 and the passive stirring shaft 4, the high temperature generated during the internal mixing process can be reduced. By arranging the temperature sensor 13 at the bottom of the internal mixer tank 1, the temperature during the operation of the internal mixing chamber can be monitored in real time, and the service life of the wear-resistant stationary ring 82 and the wear-resistant sleeve 83 can be extended.

[0031] The stationary ring oil injection hole 230 on the flange seat 23 of the side wall plate 2 corresponds to the wear-resistant sleeve 83 of the sealing device 8. By adding wear-resistant stationary rings and wear-resistant sleeves at both ends of the stirring shaft and adding the stationary ring oil injection hole 230 to continuously inject oil into the wear-resistant sleeve 83, the running-in noise during the operation of the stirring shaft can be effectively reduced, and the lubrication degree of the high-speed rotation of the stirring shaft can be improved.

[0032] The above are only the preferred embodiments of the present invention. Therefore, all equivalent changes or modifications made according to the structures, features, and principles described in the scope of the patent application of the present invention are included in the scope of the patent application of the present invention.

Claims

1. A lubricating and sealing device for a kneading equipment, comprising a kneading tank (1), side wall plates (2), a main stirring shaft (3), a driven stirring shaft (4), a support (5), and a bearing block (6), characterized in that: The internal mixer tank (1) is of a W-shaped structure. The outer wall surface of the internal mixer tank (1) is provided with a W-groove water channel (11). Side wall panels (2) are provided on both sides of the internal mixer tank (1). The internal mixer tank (1) is connected to the side wall panels (2) on both sides to form an internal mixing chamber (10). The outer wall surface of the side wall panel (2) is provided with a side water channel (21). A bearing seat (6) is provided on the side wall panel (2) outside the internal mixing chamber (10). The main stirring shaft (3) and the driven stirring shaft (4) are both arranged inside the internal mixing chamber (10). The two ends of the main stirring shaft (3) and the driven stirring shaft (4) penetrate to both sides of the internal mixing chamber (10) and are movably connected to the bearing seats (6) on both sides of the internal mixing chamber (10). There are two supports (5), and the supports (5) are arranged below the bearing seats (6) at both ends of the main stirring shaft (3). Water-cooled rotary joints (7) are provided at the ends of the main stirring shaft (3) and the driven stirring shaft (4) on the same side. Sealing devices (8) are provided at the joints where the two ends of the main stirring shaft (3) and the driven stirring shaft (4) cooperate with the side wall panels (2) on both sides. The side wall panel (2) is of a double-layer structure. The side water channel (21) is arranged on the outer wall surface of the inner wall panel. Water inlet and outlet holes (22) are provided at the lower part of the side water channel (21). Two bearing installation holes (20) are provided on the outer wall panel of the side wall panel (2). The bearing seat (6) is correspondingly connected to the installation hole (20) on the outer layer of the side wall panel (2). A flange seat (23) is provided at the position of the inner wall panel of the side wall panel (2) corresponding to the bearing installation hole (20). A static ring oil injection hole (230) is provided on the flange seat (23). The sealing device (8) includes a locking screw (80), a static ring flange (81), a wear-resistant static ring (82), and a wear-resistant sleeve (83). One end of the locking screw (80) is fixed on the inner wall panel of the side wall panel (2). The static ring flange (81) is arranged between the flange seat (23) and the main stirring shaft (3) and the driven stirring shaft (4). The static ring flange (81) is positioned by the locking screw (80). The wear-resistant static ring (82) and the wear-resistant sleeve (83) are arranged at both ends of the main stirring shaft (3) and the driven stirring shaft (4) and are attached to the static ring flange (81). The wear-resistant sleeve (83) is arranged at both ends of the main stirring shaft (3) and the driven stirring shaft (4) and is attached to the stirring blade (9). A compression spring (84) and a locking nut (85) are provided at the other end of the locking screw (80).

2. The lubricating and sealing material device for a kneading equipment according to claim 1, characterized in that: The main stirring shaft (3) and the driven stirring shaft (4) are arranged in parallel. Stirring blades (9) are provided on both the main stirring shaft (3) and the driven stirring shaft (4) inside the internal mixing chamber (10).

3. A lubricating and sealing material device for a kneading equipment according to claim 1, characterized in that: Water inlet joints (12) are provided on both sides of the W-groove water channel (11) on the outer wall surface of the internal mixer tank (1). A water outlet joint (14) is provided at the bottom surface of the W-groove water channel (11). A temperature sensor (13) is also provided at the middle position of the bottom of the internal mixer tank (1).

4. The lubricating and sealing material device of a kneading equipment according to claim 1, characterized in that: The static ring oil injection hole (230) on the flange seat (23) of the side wall panel (2) is correspondingly arranged with the wear-resistant sleeve (83) of the sealing device (8).

Images