A fiber forming centrifuge and its motor output shaft connection structure

Abstract

The present invention discloses a fiberizing centrifuge and a motor output shaft connection structure thereof, wherein the motor output shaft connection structure of the fiberizing centrifuge includes a sleeve, a sleeve fixing frame and a bearing; the sleeve fixing frame is fixedly connected to the motor fixing frame of the fiberizing centrifuge, and the sleeve fixing frame is provided with an axial through hole; the sleeve is installed inside the axial through hole of the sleeve fixing frame through a bearing; one end of the sleeve is connected to the output shaft of the motor fixed on the motor fixing frame, and the other end of the sleeve is connected to the centrifugal roller of the fiberizing centrifuge. The present invention arranges a sleeve between the motor output shaft and the coupling, and supports the sleeve through the sleeve fixing frame, and can transmit the vibration transmitted from the centrifugal roller to the sleeve fixing frame through the sleeve and the bearing, effectively reducing the vibration generated by the centrifugal roller when rotating at high speed and transmitted to the motor, protecting the motor from vibration damage, enhancing the stability of the overall structure, and ensuring the reliability of the equipment when running at high speed.

Description

Technical Field

[0001] The invention relates to a fiberizing centrifuge and a motor output shaft connection structure thereof. Background Art

[0002] The rock wool fiberizing centrifuge is the core equipment on the rock wool production line used to produce rock wool. It is an important factor in determining the output and quality of rock wool. Since the roller of the rock wool fiberizing centrifuge needs to be filled with glue, the existing fiberizing centrifuges all use belts as transmission devices. Each centrifugal roller is driven by a motor through a belt. Since the motor is set on the side of the centrifugal roller, it not only makes the centrifuge bulky, but also inconvenient to hoist and maintain. Moreover, when the speed increases, the multi-belt is easy to slip, which restricts the further increase of the centrifugal roller speed, thereby limiting the output of rock wool.

[0003] On this basis, a direct-connected centrifuge emerged. The motor drives the roller to rotate through a shaft coupling. The direct-connected design eliminates the slippage problem that may be caused by multi-belt transmission, allowing the centrifugal roller to run stably at a higher speed, thereby increasing the output of rock wool.

[0004] However, in actual production, the applicant found that the direct-connected centrifuge would produce problems that the belt-type centrifuge would not produce during operation, namely: after the motor has been running for a period of time, there will always be problems with parts in different parts loosening, resulting in very high maintenance costs in the later stage. Since the working environment of the rock wool fiberizing centrifuge is very special (high temperature environment), the applicant initially believed that the quality of the motor parts was unqualified or the performance of the parts did not meet the requirements, but after replacing the motor, the problem of motor parts falling off still existed. Since the working part of the centrifugal roller is located at the roller head of the centrifugal roller, the force of the centrifugal roller during operation is mainly on the roller head, causing the roller head to vibrate during operation. Since the motor and the centrifugal roller adopt a direct connection structure, and the roller body of the centrifuge is relatively long, the vibration of the roller head will be amplified and transmitted to the motor, thereby causing the motor parts to loosen. Because the vibration of the centrifugal roller head is not obvious, it is difficult to find out at the beginning that the problem of motor damage is caused by the vibration caused by the force on the roller head.

[0005] Therefore, it is necessary to provide a fiberizing centrifuge and a motor output shaft connection structure thereof to solve the above problems. Summary of the invention

[0006] The object of the present invention is to provide a fiberizing centrifuge and a motor output shaft connection structure thereof to solve the technical problems mentioned in the above background technology.

[0007] The technical solution for achieving the purpose of the present invention is: a motor output shaft connection structure of a fiberizing centrifuge, comprising a sleeve, a sleeve fixing frame and a bearing; the sleeve fixing frame is fixedly connected to the motor fixing frame of the fiberizing centrifuge, and the sleeve fixing frame is provided with an axial through hole; the sleeve is installed inside the axial through hole of the sleeve fixing frame through the bearing; one end of the sleeve is connected to the output shaft of the motor fixed on the motor fixing frame, and the other end of the sleeve is connected to the centrifugal roller of the fiberizing centrifuge.

[0008] Furthermore, the shaft sleeve cooperates with the shaft sleeve fixing frame through two bearings, and the bearings, shaft sleeve and shaft sleeve fixing frame surround the oil filling cavity; the shaft sleeve fixing frame is provided with a oil filling pipe, and the oil filling pipe is connected with the oil filling cavity.

[0009] Furthermore, a spacer is provided on the side wall of the sleeve fixing frame relative to the refueling cavity, and the outer wall of the sleeve has a limiting step extending radially outward relative to the area of ​​the refueling cavity. The axial length of the spacer is consistent with that of the limiting step, and the spacer and the limiting step are suitable for separating and fixing two bearings.

[0010] Furthermore, an oil filling gap is provided between the spacer and the shaft sleeve fixing frame, the axial length of the oil filling gap is smaller than the spacer, and an oil passing hole is provided on the spacer.

[0011] Furthermore, an end cover is provided on the outer side of the bearing away from the motor side, and a through hole is provided at the center of the end cover. The sleeve passes through the through hole and is fixedly connected to the sleeve fixing frame; a fixed step is provided on the sleeve, and the step surface of the fixed step is flush with the outer side of the bearing, and the end cover cooperates with the bearing and the sleeve at the same time.

[0012] Furthermore, the axial through hole includes a first zone, a second zone, a third zone, a fourth zone and a fifth zone in sequence along the direction of the motor toward the centrifugal roller, the first zone cooperates with the motor fixing frame, the diameters of the third zone and the fifth zone match the diameter of the bearing, the axial lengths of the third zone and the fifth zone are greater than the axial length of the bearing, the diameter of the second zone is smaller than the diameter of the third zone, the diameter of the third zone is smaller than the diameter of the fourth zone, and the axial length of the fourth zone is smaller than the axial length of the spacer ring.

[0013] Furthermore, the shaft sleeve is key-connected to the output shaft of the motor.

[0014] A fiberizing centrifuge comprises a coupling and a motor output shaft connection structure of the fiberizing centrifuge, wherein one end of the shaft sleeve is connected to the motor output shaft and the other end is connected to one end of the coupling, and the other end of the coupling is connected to a centrifugal roller.

[0015] Furthermore, a sealing ring is provided on the outer surface of one end of the coupling connected to the sleeve, and the sealing ring is suitable for sealing the gap between the coupling and the sleeve; a wool felt is provided on the end surface of the sealing ring facing the end cover, and the wool felt abuts against the end cover.

[0016] By adopting the above technical solution, the present invention has the following beneficial effects:

[0017] The present invention arranges a shaft sleeve between the motor output shaft and the coupling, and supports the shaft sleeve through a shaft sleeve fixing frame, so that the vibration transmitted from the centrifugal roller can be transmitted to the shaft sleeve fixing frame through the shaft sleeve and the bearing, thereby effectively reducing the vibration generated by the centrifugal roller when rotating at a high speed and being transmitted to the motor, protecting the motor from vibration damage, enhancing the stability of the overall structure, and ensuring the reliability of the equipment when running at a high speed.

[0018] The bearing, the shaft sleeve and the shaft sleeve fixing frame of the present invention surround the oil filling cavity. The bearing can be filled with oil in time through the oil filling pipeline on the shaft sleeve fixing frame without disassembling parts, thereby ensuring smooth operation of the equipment.

[0019] The present invention provides a spacer ring and a limiting step between the two bearings for isolating and fixing the two bearings. At the same time, through the action of the shaft sleeve fixing frame and the end cover, the bearings will not change position due to vibration, so that the connection structure of the entire output shaft is more stable, the effect of blocking the transmission of vibration is better, and the service life is longer.

[0020] The present invention provides a refueling gap between the shaft sleeve fixing frame and the spacer ring. The oil in the refueling pipe first enters the refueling gap and then enters the refueling cavity through the oil hole. Even if the oil hole and the refueling pipe are offset, the bearing can still be refueled, which reduces the difficulty of early assembly and prevents the situation where refueling cannot be done due to vibration because the oil hole and the refueling pipe are offset.

[0021] The motor output shaft of the present invention drives the centrifugal roller to rotate through the shaft sleeve and the coupling, and still forms a direct connection structure. The rotation speed of the equipment is fast, the thermal conductivity of the produced rock wool board is low, and the thermal insulation effect is better.

[0022] The present invention is provided with a sealing ring to seal the gap between the coupling and the shaft sleeve to prevent foreign matter from entering and affecting the operation of the equipment. At the same time, a wool felt is provided on the sealing ring to sweep the outer surface of the end cover, thereby achieving a better cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein

[0024] Figure 1 It is a structural schematic diagram of the present invention.

[0025] Figure 2For the present invention Figure 1 A partial enlarged view of middle A.

[0026] Figure 3 It is a side sectional view of the shaft sleeve fixing frame of the present invention.

[0027] The numbers in the accompanying drawings are: sleeve 1, limiting step 1-1, fixing step 1-2, sleeve fixing frame 2, bearing 3, motor fixing frame 4, motor 5, output shaft 5-1, refueling cavity 6, refueling pipe 7, spacer 8, oil hole 8-1, refueling gap 9, end cover 10, first zone 11-1, second zone 11-2, third zone 11-3, fourth zone 11-4, fifth zone 11-5, coupling 12, sealing ring 13, wool felt 13-1. DETAILED DESCRIPTION

[0028] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0029] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be understood that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the inventive product is conventionally placed when used, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0033] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The present invention is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the scope of protection of the present invention.

[0034] Example 1, see Figure 1-3 A fiberizing centrifuge includes a coupling 12 and a motor output shaft connection structure of the fiberizing centrifuge, wherein the motor output shaft connection structure includes a sleeve 1, a sleeve fixing frame 2 and a bearing 3; the sleeve fixing frame 2 is fixedly connected to the motor fixing frame 4 of the fiberizing centrifuge, and the sleeve fixing frame 2 is provided with an axial through hole; the sleeve 1 is installed inside the axial through hole of the sleeve fixing frame 2 through the bearing 3; one end of the sleeve 1 is connected to the output shaft 5-1 of the motor 5 fixed on the motor fixing frame 4, and the other end of the sleeve 1 is connected to the centrifugal roller of the fiberizing centrifuge through the coupling 4. One end of the sleeve 1 is connected to the motor output shaft 5-1, and the other end is connected to one end of the coupling 12, and the other end of the coupling is connected to the centrifugal roller. In this embodiment, a key connection is adopted between the sleeve 1 and the motor output shaft 5-1, and between the sleeve and the coupling 12. The motor output shaft 5-1 drives the centrifugal roller to rotate through the sleeve 1 and the coupling 12, and still forms a direct connection structure. The rotation speed of the equipment is fast, the thermal conductivity of the rock wool board produced is low, and the thermal insulation effect is better.

[0035] For details, see Figure 2 The sleeve 1 cooperates with the sleeve fixing frame 2 through two bearings 3, and the bearings 3, the sleeve 1 and the sleeve fixing frame 2 surround the refueling cavity 6. The sleeve fixing frame 2 is provided with a refueling pipe 7, and the refueling pipe 7 is connected with the refueling cavity 6. The bearing 3 can be refueled in time through the refueling pipe 7 without disassembling parts, thereby ensuring smooth operation of the equipment. A spacer ring 8 is provided on the side wall of the sleeve fixing frame 2 relative to the refueling cavity 6, and the outer wall of the sleeve 1 extends radially outward relative to the area of ​​the refueling cavity 6 to form a limiting step 1-1, and the spacer ring 8 is consistent with the axial length of the limiting step 1-1, and the spacer ring 8 and the limiting step 1-1 are suitable for separating and fixing the two bearings 3.

[0036] An oiling gap 9 is arranged between the spacer 8 and the shaft sleeve fixing frame 2. The axial length of the oiling gap 9 is smaller than that of the spacer 8. An oiling hole 8-1 is arranged on the spacer 8. An oiling gap 9 is arranged between the shaft sleeve fixing frame 2 and the spacer 8. The oil in the oiling pipe 7 first enters the oiling gap 9 and then enters the oiling cavity 6 through the oiling hole 8-1. Even if the oiling hole 8-1 is offset from the oiling pipe 7, the bearing 3 can still be oiled, which reduces the difficulty of early assembly and prevents the situation where oiling cannot be done due to the oiling hole 8-1 being offset from the oiling pipe 7 due to vibration.

[0037] An end cover 10 is provided on the outer side of the bearing 3 away from the side of the motor 5. A through hole is provided in the center of the end cover 10. The sleeve 1 passes through the through hole and is fixedly connected to the sleeve fixing frame 2. A fixed step 1-2 is provided on the sleeve 1. The step surface of the fixed step 1-2 is flush with the outer side of the bearing 3. The end cover 10 cooperates with the bearing 3 and the sleeve 1 at the same time.

[0038] See Figure 3 The axial through hole includes a first zone 11-1, a second zone 11-2, a third zone 11-3, a fourth zone 11-4 and a fifth zone 11-5 in sequence along the direction of the motor 5 toward the centrifugal roller. The first zone 11-1 cooperates with the motor fixing frame 4. The diameters of the third zone 11-3 and the fifth zone 11-5 match the diameter of the bearing 3. The axial lengths of the third zone 11-3 and the fifth zone 11-5 are greater than the axial length of the bearing 3. The diameter of the second zone 11-2 is smaller than the diameter of the third zone 11-3. The diameter of the third zone 11-3 is smaller than the diameter of the fourth zone 11-4. The axial length of the fourth zone 11-4 is smaller than the axial length of the spacer 8. After assembly, the two bearings 3 are respectively fixed in the third zone 11-3 and the fifth zone 11-5, and a spacer 8 and a limiting step 1-1 are arranged between the two bearings 3. The outer sides of the bearings 3 are respectively limited by the outer side walls of the second zone 11-2 and the end cover 10, so that the bearings 3 will not change position due to vibration, making the connection structure of the entire output shaft more stable, the effect of blocking the transmission of vibration is better, and the service life is longer.

[0039] The coupling 12 in the present invention is a prior art. A sealing ring 13 is provided on the outer surface of one end of the coupling 12 connected to the shaft sleeve 1. The sealing ring 13 is suitable for sealing the gap between the coupling 12 and the shaft sleeve 1 to prevent foreign matter from entering and affecting the operation of the equipment. A wool felt 13-1 is provided on the end surface of the sealing ring 13 facing the end cover 10. The wool felt 13-1 abuts against the end cover 10. When the equipment is running, the wool felt 13-1 can sweep the outer surface of the end cover, and the cleaning effect is better.

[0040] The present invention sets a sleeve 1 between the output shaft 5-1 and the coupling 12, and supports the sleeve 1 through the sleeve fixing frame 2. The vibration transmitted from the centrifugal roller can be transmitted to the sleeve fixing frame 2 through the sleeve 1 and the bearing 3, effectively reducing the vibration generated by the centrifugal roller when rotating at a high speed and transmitted to the motor 5, protecting the motor 5 from vibration damage, enhancing the stability of the overall structure, and ensuring the reliability of the equipment when running at a high speed.

[0041] The specific embodiments described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A motor output shaft connection structure of a fiberizing centrifuge, characterized in that: The invention comprises a shaft sleeve (1), a shaft sleeve fixing frame (2) and a bearing (3); the shaft sleeve fixing frame (2) is fixedly connected to a motor fixing frame (4) of a fiber forming centrifuge, and the shaft sleeve fixing frame (2) is provided with an axial through hole; the shaft sleeve (1) is installed inside the axial through hole of the shaft sleeve fixing frame (2) via the bearing (3); one end of the shaft sleeve (1) is connected to an output shaft (5-1) of a motor (5) fixed to the motor fixing frame (4), and the other end of the shaft sleeve (1) is connected to a centrifugal roller of the fiber forming centrifuge; the shaft sleeve (1) cooperates with the shaft sleeve fixing frame (2) via two bearings (3), and the bearings (3), the shaft sleeve (1) and the shaft sleeve fixing frame (2) surround an oiling cavity (6); the shaft sleeve fixing frame ( 2) is provided with a refueling pipe (7), the refueling pipe (7) is communicated with the refueling cavity (6); a spacer (8) is provided on the side wall of the sleeve fixing frame (2) relative to the refueling cavity (6); the outer wall of the sleeve (1) relative to the area of ​​the refueling cavity (6) extends radially outward to form a limiting step (1-1), the axial length of the spacer (8) and the limiting step (1-1) are consistent, and the spacer (8) and the limiting step (1-1) are suitable for separating and fixing the two bearings (3); a refueling gap (9) is provided between the spacer (8) and the sleeve fixing frame (2), the axial length of the refueling gap (9) is smaller than that of the spacer (8), and the spacer (8) is provided with an oil hole (8-1).

2. The motor output shaft connection structure of a fiberizing centrifuge according to claim 1, characterized in that: An end cover (10) is arranged on the outer side of the bearing (3) at a side away from the motor (5), and a through hole is arranged at the center of the end cover (10). The shaft sleeve (1) passes through the through hole and is fixedly connected to the shaft sleeve fixing frame (2); a fixing step (1-2) is arranged on the shaft sleeve (1), and the step surface of the fixing step (1-2) is flush with the outer side of the bearing (3), and the end cover (10) is matched with the bearing (3) and the shaft sleeve (1) at the same time.

3. The motor output shaft connection structure of a fiberizing centrifuge according to claim 1, characterized in that: The axial through hole comprises a first area (11-1), a second area (11-2), a third area (11-3), a fourth area (11-4) and a fifth area (11-5) in sequence along the direction from the motor (5) to the centrifugal roller; the first area (11-1) cooperates with the motor fixing frame (4); the diameters of the third area (11-3) and the fifth area (11-5) match the diameter of the bearing (3); the axial lengths of the third area (11-3) and the fifth area (11-5) are greater than the axial length of the bearing (3); the diameter of the second area (11-2) is smaller than the diameter of the third area (11-3); the diameter of the third area (11-3) is smaller than the diameter of the fourth area (11-4); and the axial length of the fourth area (11-4) is smaller than the axial length of the spacer (8).

4. The motor output shaft connection structure of a fiberizing centrifuge according to claim 1, characterized in that: The shaft sleeve (1) is key-connected to the output shaft (5-1) of the motor.

5. A fiberizing centrifuge, characterized in that: A coupling (12) and a motor output shaft connection structure of a fiberizing centrifuge according to any one of claims 1 to 4, wherein one end of the sleeve (1) is connected to the motor output shaft (5-1), and the other end is connected to one end of the coupling (12), and the other end of the coupling (12) is connected to a centrifugal roller.

6. A fiberizing centrifuge according to claim 5, characterized in that: A sealing ring (13) is provided on the outer surface of one end of the coupling (12) connected to the shaft sleeve (1), and the sealing ring (13) is suitable for sealing the gap between the coupling (12) and the shaft sleeve (1); a wool felt (13-1) is provided on the end surface of the sealing ring (13) facing the end cover (10), and the wool felt (13-1) is in contact with the end cover (10).

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