CN219772555U

CN219772555U - Dryer with double input speed reducer

Info

Publication number: CN219772555U
Application number: CN202321365783.4U
Authority: CN
Inventors: 黎启标; 雷光友; 潘启钊; 陈智江
Original assignee: Guangdong Baotuo Technology Co ltd
Current assignee: Guangdong Baotuo Technology Co ltd
Priority date: 2023-05-31
Filing date: 2023-05-31
Publication date: 2023-09-29
Anticipated expiration: 2033-05-31

Abstract

The utility model discloses a dryer with double input speed reducers, which comprises a speed reducing mechanism, a transmission main shaft and a cylinder body, wherein the speed reducing mechanism comprises a first variable frequency speed reducing motor, a second variable frequency speed reducing motor, a first universal coupling, a second universal coupling and an input speed reducer, one end of the transmission main shaft is in driving connection with the input speed reducer, the other end of the transmission main shaft is fixedly connected with the cylinder body, and the input speed reducer is used for driving the cylinder body to move through the transmission main shaft. The speed reducing mechanism of the dryer of the double-input speed reducer is provided with two variable frequency speed reducing motors, the rotating direction of the dryer can be changed, the response speed can be improved in the motion process of the dryer, the variable frequency speed reducing motors can be selectively switched to work, any variable frequency speed reducing motor is stopped, the other variable frequency speed reducing motor is switched to work, the variable frequency speed reducing motor works as a single motor, the structure is simple and compact, the occupied space is small, the speed regulating range can be enlarged, and the stability of the input working condition is maintained.

Description

Dryer with double input speed reducer

Technical Field

The utility model relates to the field of drying cylinder devices, in particular to a drying cylinder with a double-input speed reducer.

Background

The dryer is common drying equipment in papermaking products, plays a very important role in the step of drying paper, and has remarkable effects of improving papermaking efficiency, improving paper performance and reducing papermaking energy consumption.

In the motion process of the drying cylinder, acceleration, deceleration, starting or stopping are needed, sometimes the rotation direction of the speed reducer is also needed to be changed, the motion characteristics can enable the speed reducer to operate in a working state with lower efficiency, most of conventional speed reducers are single-shaft input and single-shaft output, the speed adjusting range of the speed reducer is narrow, and the input and output working conditions are unstable.

Disclosure of Invention

The utility model aims to solve the technical problem of providing a dryer with a double-input speed reducer.

The technical scheme adopted for solving the technical problems is as follows: constructing a dryer of a double-input speed reducer, which comprises a speed reducing mechanism, a transmission main shaft and a cylinder body;

the speed reducing mechanism comprises a first variable-frequency speed reducing motor, a second variable-frequency speed reducing motor, a first universal coupler, a second universal coupler and an input speed reducer, wherein the first variable-frequency speed reducing motor is connected with a first connecting port of the input speed reducer through the first universal coupler, and the second variable-frequency speed reducing motor is connected with a second connecting port of the input speed reducer through the second universal coupler;

one end of the transmission main shaft is in driving connection with the input speed reducer, the other end of the transmission main shaft is fixedly connected with the cylinder body, and the input speed reducer is used for driving the cylinder body to move through the transmission main shaft.

In some embodiments, the dual input speed reducer dryer further comprises a CARB bearing and a bearing seat for positioning the CARB bearing, the transmission main shaft is arranged in the CARB bearing, the CARB bearing comprises an outer ring, an inner ring and rollers, the outer ring is arranged at the axial outer end of the CARB bearing, the inner ring is arranged at the axial inner end of the CARB bearing, the rollers are uniformly distributed between the outer ring and the inner ring, and the contact surface of the outer ring and the rollers and the contact surface of the inner ring and the rollers are arc surfaces.

In some embodiments, a hot steam inlet is provided on the drive spindle.

In some embodiments, the cylinder includes a housing, a mesh support plate, a facing stainless steel mesh, a first end cap, and a second end cap;

the shell is of a cylindrical hollow structure, the net support plate is arranged outside the shell, the surface layer stainless steel net is arranged outside the net support plate, and the first end cover and the second end cover are respectively arranged at two ends of the cylinder body.

In some embodiments, the first end cover and the second end cover are both circular plate structures, the first end cover and the second end cover are both provided with circular through holes, the first end cover outer part and the second end cover outer part are both provided with baffle rings, and the baffle rings are arranged on two sides of the shell.

In some embodiments, the first end cap and the second end cap are each provided with a manhole, the manhole being provided with a manhole cover.

In some embodiments, the first end cap inner wall and the second end cap inner wall are each provided with a weight.

In some embodiments, a sealed chamber is arranged in the cylinder body, and the sealed chamber comprises a transmission side bearing, an intermediate support shaft, a support frame and a connecting block;

the transmission side bearing is arranged on the inner wall of the sealing chamber, the middle supporting shaft is rotatably connected with the transmission side bearing, the connecting block is arranged outside the middle supporting shaft, and the supporting frame is arranged on the connecting block.

In some embodiments, the cylinder body is further provided with a balancing weight, a side sealing plate and an axial sealing plate;

the balancing weight sets up on the connecting block, the side sealing plate sets up the both sides of support frame, the axis of side sealing plate with the axis looks perpendicular of jackshaft, the axial sealing plate sets up the both sides of support frame, the axis of axial sealing plate with the axis of jackshaft is parallel.

In some embodiments, a hood is further provided on the cylinder, a sealing plate is provided on the hood, and a pressing plate is provided on the sealing plate.

The implementation of the utility model has the following beneficial effects: the speed reducing mechanism of the dryer of the double-input speed reducer is provided with two variable frequency speed reducing motors, the rotating direction of the dryer can be changed, the response speed can be improved in the motion process of the dryer, the variable frequency speed reducing motors can be selectively switched to work, any variable frequency speed reducing motor is stopped, the other variable frequency speed reducing motor is switched to work, the variable frequency speed reducing motor works as a single motor, the structure is simple and compact, the occupied space is small, the speed regulating range can be enlarged, and the stability of the input working condition is maintained.

Drawings

In order to more clearly illustrate the technical solution of the present utility model, the following description will be given with reference to the accompanying drawings and examples, it being understood that the following drawings only illustrate some examples of the present utility model and should not be construed as limiting the scope, and that other related drawings can be obtained from these drawings by those skilled in the art without the inventive effort. In the accompanying drawings:

FIG. 1 is a schematic general structural view of a dual input speed reducer dryer in some embodiments of the present utility model;

FIG. 2 is a schematic diagram of the structure of a cylinder in some embodiments of the utility model;

fig. 3 is a partial enlarged view of a portion a in fig. 2.

Detailed Description

For a clearer understanding of technical features, objects and effects of the present utility model, a detailed description of embodiments of the present utility model will be made with reference to the accompanying drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "rear", "upper", "lower", "left", "right", "longitudinal", "transverse", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail", etc. are configured and operated in specific directions based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model, and do not indicate that the apparatus or element to be referred to must have specific directions, and thus should not be construed as limiting the present utility model.

It should also be noted that unless explicitly stated or limited otherwise, terms such as "mounted," "connected," "secured," "disposed," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. When an element is referred to as being "on" or "under" another element, it can be "directly" or "indirectly" on the other element or one or more intervening elements may also be present. The terms "first," "second," "third," and the like are used merely for convenience in describing the present utility model and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, whereby features defining "first," "second," "third," etc. may explicitly or implicitly include one or more such features. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1 to 3, a dryer with dual input speed reducer according to some embodiments of the present utility model includes a speed reducing mechanism 1, a transmission main shaft 2 and a cylinder 3, where the speed reducing mechanism 1 includes a first variable frequency speed reducing motor 11, a second variable frequency speed reducing motor 12, a first universal coupling 13, a second universal coupling 14, and an input speed reducer 15, the first variable frequency speed reducing motor 11 is connected to a first connection port of the input speed reducer 15 through the first universal coupling 13, the second variable frequency speed reducing motor 12 is connected to a second connection port of the input speed reducer 15 through the second universal coupling 14, one end of the transmission main shaft 2 is in driving connection with the input speed reducer 15, and the other end of the transmission main shaft 2 is fixedly connected to the cylinder 3, and the input speed reducer 15 is used for driving the cylinder 3 to move through the transmission main shaft 2. It can be understood that, the speed reducing mechanism 1 is provided with two variable frequency speed reducing motors, so that the rotation direction of the cylinder body 3 can be changed, the response speed can be improved in the motion process of the cylinder body 3, the variable frequency speed reducing motors can be selectively switched to work, any variable frequency speed reducing motor is stopped, the other variable frequency speed reducing motor is switched to work, the variable frequency speed reducing motor works as a single motor, the structure is simple and compact, the occupied space is small, the speed regulating range can be enlarged, and the stability of the input working condition is maintained.

As shown in fig. 3, the dryer of the dual-input speed reducer further comprises a CARB bearing 4 and a bearing seat 5 for positioning the CARB bearing 4, the transmission main shaft 2 is arranged in the CARB bearing 4, the CARB bearing 4 comprises an outer ring 41, an inner ring 42 and rollers 43, the outer ring 41 is arranged at the axial outer end of the CARB bearing 4, the inner ring 42 is arranged at the axial inner end of the CARB bearing 4, the rollers 43 are uniformly distributed between the outer ring 41 and the inner ring 42, and the contact surfaces of the outer ring 41 and the rollers 43 and the contact surfaces of the inner ring 42 and the rollers 43 are arc surfaces. The CARB bearing 4 combines the characteristics of automatic aligning and axial displacement, so that the CARB bearing 4 has the advantages that the inner ring 41 and the outer ring 41 can displace relative to each other, the rollers 43 can automatically guide, and no matter whether the inner ring 42 axially displaces relative to the outer ring 41 and/or is not centered, the CARB bearing 4 always can be positioned at a position which enables the load to act on the whole rollers 43 evenly, so that the displacement between the inner ring 41 and the outer ring 41 can not influence the radial movement. The CARB bearing 4 absorbs both axial centering errors and axial displacement. The service life can be prolonged, the running time can be increased, and the maintenance cost can be reduced.

Preferably, the main transmission shaft 2 is provided with a hot steam inlet 21, so that hot steam can enter the drying cylinder from the hot steam inlet 21 for the drying process.

As shown in fig. 2, the cylinder block 3 includes a housing 31, a net support plate 32, a surface layer stainless steel net 33, a first end cap 34, and a second end cap 35, the housing 31 is a cylindrical hollow structure, the net support plate 32 is disposed outside the housing 31, the surface layer stainless steel net 33 is disposed outside the net support plate 32, and the first end cap 34 and the second end cap 35 are disposed at both ends of the cylinder block 3, respectively. As can be appreciated, the surface layer stainless steel mesh 33 is arranged on the outermost side of the cylinder body 3, so that the cylinder body 3 is not easy to rust, the corrosion resistance, the high temperature resistance and the strength of the cylinder body 3 are improved, the quality of processed paper is ensured, and the paper performance is improved. The first end cover 34 and the second end cover 35 can be connected with the shell 31 through welding, so that an integrated structure is formed, the strength, rigidity and stability of the cylinder body 3 are greatly improved, and various problems of tightness, processing errors, bolt failure and the like caused by bolt connection are avoided.

The first end cover 34 and the second end cover 35 may be circular plate structures, the first end cover 34 and the second end cover 35 are provided with circular through holes, and the outside of the first end cover 34 and the outside of the second end cover 35 are provided with baffle rings, which are arranged on both sides of the housing 31. Specifically, the baffle ring is respectively in bolted connection with the first end cover 34 and the second end cover 35, and the inner surface of the baffle ring is respectively attached to the outer surfaces of the first end cover 34 and the second end cover 35, so that the tightness of the cylinder body 3 is improved, the strength and the stability of the cylinder body 3 are further enhanced, and the cylinder cover is prevented from being deformed due to stress.

Preferably, both the first end cap 34 and the second end cap 35 are provided with manholes, which are provided with manhole covers. The user can be ensured to freely enter the drying cylinder for maintenance, and the manhole cover ensures the air tightness of the cylinder body 3. The inner walls of the first end cover 34 and the second end cover 35 are respectively provided with a balance block, and the balance blocks are used for guaranteeing the balance of the cylinder body 3.

The cylinder 3 is provided with a seal chamber 38, the seal chamber 38 includes a transmission side bearing 381, an intermediate support shaft 382, a support frame 383, and a connection block 384, the transmission side bearing 381 is provided on an inner wall of the seal chamber 38, the intermediate support shaft 382 is rotatably connected to the transmission side bearing 381, the connection block 384 is provided outside the intermediate support shaft 382, and the support frame 383 is provided on the connection block 384. The cylinder body 3 is internally provided with a counter weight 385, a side sealing plate 386 and an axial sealing plate 387, the counter weight 385 is arranged on the connecting block 384, the side sealing plate 386 is arranged on two sides of the supporting frame 383, the axis of the side sealing plate 386 is vertical to the axis of the middle supporting shaft 382, the axial sealing plate 387 is arranged on two sides of the supporting frame 383, the axis of the axial sealing plate 387 is parallel to the axis of the middle supporting shaft 382, the cylinder body 3 is also provided with an exhaust hood 39, the exhaust hood 39 is provided with a sealing plate, and the sealing plate is provided with a pressing plate.

Specifically, when the sheet passes through the outer surface of the cylinder 3, the hot air fed by the external mechanism enters the sealing chamber 38 through the sheet, the surface stainless steel mesh 33, the mesh support plate 32, and the housing 31 in this order, and then is discharged out of the cylinder 3 through the first end cover 34 and the exhaust hood 39, thereby forming the discharge of the hot air. The housing 31, the side seal plates 386 and the axial seal plates 387 form a closed space, and prevent the internal and external circulation of gas, thereby improving the heat transfer efficiency. The exhaust hood 39 is connected with an external hot air treatment device to form a hot air treatment system, and the exhaust hood 39 can enable hot air to be discharged out of the cylinder body 3 more efficiently and rapidly, so that energy consumption is saved.

And connecting block 384 is fixedly connected with intermediate support shaft 382, balancing weight 385 is connected with connecting block 384 by bolts, and support frame 383 is connected with connecting block 384 by bolts. The weight of the counterweight 385 matches the weight of the support frame 383, the side seal plates 386 and the axial seal plates 387, ensuring the smoothness of the seal chamber 38 during rotational movement.

It is to be understood that the above examples only represent preferred embodiments of the present utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model; it should be noted that, for a person skilled in the art, the above technical features can be freely combined, and several variations and modifications can be made without departing from the scope of the utility model; therefore, all changes and modifications that come within the meaning and range of equivalency of the claims are to be embraced within their scope.

Claims

1. The dryer of the double-input speed reducer is characterized by comprising a speed reducing mechanism (1), a transmission main shaft (2) and a cylinder body (3);

the speed reducing mechanism (1) comprises a first variable-frequency speed reducing motor (11), a second variable-frequency speed reducing motor (12), a first universal coupler (13), a second universal coupler (14) and an input speed reducer (15), wherein the first variable-frequency speed reducing motor (11) is connected with a first connecting port of the input speed reducer (15) through the first universal coupler (13), and the second variable-frequency speed reducing motor (12) is connected with a second connecting port of the input speed reducer (15) through the second universal coupler (14);

one end of the transmission main shaft (2) is in driving connection with the input speed reducer (15), the other end of the transmission main shaft is fixedly connected with the cylinder body (3), and the input speed reducer (15) is used for driving the cylinder body (3) to move through the transmission main shaft (2).

2. The dual input speed reducer dryer according to claim 1, further comprising a CARB bearing (4) and a bearing seat (5) for positioning the CARB bearing (4), wherein the transmission main shaft (2) is arranged in the CARB bearing (4), the CARB bearing (4) comprises an outer ring (41), an inner ring (42) and a roller (43), the outer ring (41) is arranged at the axial outer end of the CARB bearing (4), the inner ring (42) is arranged at the axial inner end of the CARB bearing (4), the roller (43) is uniformly distributed between the outer ring (41) and the inner ring (42), and the contact surface of the outer ring (41) and the roller (43) is an arc surface.

3. A twin-input speed reducer dryer according to claim 2, characterized in that the transmission spindle (2) is provided with a hot steam inlet (21).

4. A twin-input speed reducer dryer according to claim 1, characterized in that the cylinder (3) comprises a shell (31), a wire support plate (32), a facing stainless steel wire (33), a first end cap (34) and a second end cap (35);

the shell (31) is of a cylindrical hollow structure, the net support plate (32) is arranged outside the shell (31), the surface layer stainless steel net (33) is arranged outside the net support plate (32), and the first end cover (34) and the second end cover (35) are respectively arranged at two ends of the cylinder body (3).

5. The dual input speed reducer dryer as claimed in claim 4, characterized in that the first end cover (34) and the second end cover (35) are both of circular plate-shaped structures, the first end cover (34) and the second end cover (35) are both provided with circular through holes, baffle rings are arranged outside the first end cover (34) and outside the second end cover (35), and the baffle rings are arranged on two sides of the shell (31).

6. The dual input speed reducer dryer according to claim 5, characterized in that the first end cap (34) and the second end cap (35) are both provided with manholes, which manholes are provided with manhole covers.

7. A dryer according to claim 6, characterized in that the inner wall of the first end cover (34) and the inner wall of the second end cover (35) are provided with weights.

8. A twin input speed reducer drying cylinder according to claim 4, characterised in that a sealing chamber (38) is provided in the cylinder (3), the sealing chamber (38) comprising a drive side bearing (381), an intermediate support shaft (382), a support frame (383) and a connection block (384);

the transmission side bearing (381) is arranged on the inner wall of the sealing chamber (38), the middle supporting shaft (382) is rotatably connected with the transmission side bearing (381), the connecting block (384) is arranged outside the middle supporting shaft (382), and the supporting frame (383) is arranged on the connecting block (384).

9. The dual input speed reducer dryer as claimed in claim 8, characterized in that a counter weight (385), a side sealing plate (386) and an axial sealing plate (387) are also provided in the cylinder (3);

the balancing weight (385) is arranged on the connecting block (384), the side sealing plates (386) are arranged on two sides of the supporting frame (383), the axis of the side sealing plates (386) is perpendicular to the axis of the middle supporting shaft (382), the axial sealing plates (387) are arranged on two sides of the supporting frame (383), and the axis of the axial sealing plates (387) is parallel to the axis of the middle supporting shaft (382).

10. A dryer with double input speed reducer according to claim 9, characterized in that the cylinder (3) is further provided with a hood (39), the hood (39) being provided with a sealing plate, the sealing plate being provided with a pressing plate.