Roots blower transmission structure and method

Abstract

The invention belongs to the technical field of Roots blower equipment, and particularly relates to a Roots blower transmission structure and method.The transmission structure comprises a blower wall plate, a motor mounting plate and a servo motor; the fan wall plate comprises a driving end wall plate and a tooth end wall plate, the motor mounting plate is detachably mounted on the outer side of the driving end wall plate, the servo motor is mounted on the outer side of the motor mounting plate, and the servo motor is in direct connection driving connection with a driving impeller of the Roots fan; compared with the prior art, the Roots blower has the advantages and positive effects that the space required by direct connection transmission of the Roots blower is greatly reduced, meanwhile, a bearing seat between the motor and the Roots blower is omitted, and the coaxiality of an output shaft of the motor and an impeller shaft of a driving impeller of the Roots blower is favorably ensured; an impeller shaft of the Roots blower driving impeller and a bearing hole share the same axis, a center hole of the motor mounting plate and a bearing hole of the driving end wall plate share the same axis, and the technical means achieve that an output shaft of the servo motor and the impeller shaft of the Roots blower driving impeller share the same axis.

Description

Technical Field

[0001] The invention belongs to the technical field of Roots blower equipment, and in particular relates to a transmission structure and method of a Roots blower. Background Art

[0002] Roots blowers use belt drive or direct drive. Belt drive has advantages such as simple operation and convenient maintenance, but its disadvantages cannot be ignored, especially in application scenarios with high requirements for equipment performance and stability, these disadvantages may become factors for considering the use of direct drive.

[0003] Belt drive requires proper tension to ensure the normal operation of the belt, which may add additional lateral force to the shaft end of the blower, which has a certain impact on the stable operation of the equipment; belt drive requires regular inspection and maintenance to ensure the tension and integrity of the belt. This includes regular replacement and adjustment of the belt to ensure its performance and safety, which increases the complexity and cost of maintenance; due to the poor high temperature resistance of the belt and the tendency to slip, belt-driven Roots blowers are relatively rarely used in high temperature environments. This limits its application in certain specific industries or working environments.

[0004] In the prior art Roots blower direct drive, the motor is installed on a vertical motor seat, and the bearing seat is between the motor seat and the Roots blower. In the prior art Roots blower direct drive, the distance between the motor and the Roots blower is large, which occupies a large space, and it is necessary to adjust the coaxiality of the motor output shaft, the bearing in the bearing seat, and the impeller shaft of the Roots blower active impeller, which has extremely high requirements for installation. If there is a large coaxial deviation between the three, it will cause fan transmission problems, such as increased equipment vibration and increased wear of parts. Summary of the invention

[0005] The invention aims at the technical problems existing in the transmission of Roots blowers in the prior art and provides a transmission structure and method of Roots blowers.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is: a Roots blower transmission structure, including a blower wall plate, a motor mounting plate and a servo motor; The fan wall panel includes a drive end wall panel and a tooth end wall panel, the motor mounting plate is detachably mounted on the outside of the drive end wall panel, the servo motor is mounted on the outside of the motor mounting plate, and the servo motor is directly driven and connected to the active impeller of the Roots blower.

[0007] Preferably, a plurality of bolt holes are provided on the outer periphery of the fan wall panel, and two bearing holes are provided in the central area of ​​the drive end wall panel, the two bearing holes are respectively bearing hole one and bearing hole two, and the impeller shaft end of the active impeller of the Roots blower passes through bearing hole one; the motor mounting plate is provided with a center hole, and the center hole is coaxial with the bearing hole of the drive end wall panel.

[0008] Preferably, three positioning holes are opened on the outer periphery of the motor mounting plate, and the three positioning holes are respectively aligned with the corresponding bolt holes on the outer periphery of the fan wall panel.

[0009] Preferably, a motor mounting groove is provided on the outer side of the motor mounting plate, the center hole is located at the center of the motor mounting groove, and a coupling mounting groove is also provided on the outer periphery of the center hole; the servo motor housing matches the motor mounting groove, and the output shaft of the servo motor is connected to the impeller shaft end of the active impeller through a coupling.

[0010] Preferably, a motor fixing groove is further provided on the outer side of the motor mounting plate; the end of the servo motor close to the output shaft is fixedly connected to two motor fixing seats, and the motor fixing seats can cooperate with the motor fixing groove.

[0011] Preferably, a shock-absorbing pad is installed between the inner side of the motor mounting plate and the outer side of the drive end wall panel.

[0012] Preferably, bolt 1 is used to sequentially pass through the positioning hole, the corresponding bolt hole on the outer periphery of the fan wall panel and the bolt hole of the casing of the Roots blower to connect the motor mounting plate, the fan wall panel and the casing of the Roots blower.

[0013] Preferably, the motor fixing seat is provided with a threaded hole 1, and the motor fixing groove is provided with a threaded hole 2, and the servo motor is fixed by using a bolt 2 passing through the threaded hole 1 and the threaded hole 2 in sequence.

[0014] A Roots blower transmission method, using the Roots blower transmission structure to transmit the active impeller in the Roots blower casing, includes the following contents: The servo motor is installed on the outside of the fan wall panel through a motor mounting plate, and the servo motor directly drives the active impeller; the rotation speed of the active impeller is changed by changing the rotation speed of the servo motor.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are: (1) In the transmission structure of the Roots blower of the present invention, the motor mounting plate, the fan wall plate and the casing of the Roots blower are connected by bolts passing through the positioning holes, the corresponding bolt holes on the outer periphery of the fan wall plate and the bolt holes on the casing of the Roots blower in sequence; the space required for the direct-connected transmission of the Roots blower is greatly reduced, and the bearing seat between the motor and the Roots blower is omitted, which is conducive to ensuring the coaxiality of the motor output shaft and the impeller shaft of the active impeller of the Roots blower; (2) The positions of the positioning holes on the outer periphery of the motor mounting plate should be determined according to the bolt holes on the fan wall plate, and the positioning hole on the right side should be located on the center line of the two positioning holes on the left side; the above technical means should be used to ensure that the center hole of the motor mounting plate is coaxial with the bearing hole of the drive end wall plate; (3) A coupling mounting groove is provided on the outer periphery of the center hole of the motor mounting plate, and the bottom of the coupling mounting groove contacts the side of the middle part of the coupling away from the servo motor; (4) The impeller shaft of the Roots blower active impeller is coaxial with the bearing hole, the servo motor housing matches the motor mounting slot, the center of the motor mounting slot is the center hole of the motor mounting plate, and the center hole of the motor mounting plate is coaxial with the bearing hole of the drive end wall plate; the above technical means are very easy to achieve the coaxiality of the servo motor output shaft and the impeller shaft of the Roots blower active impeller; (5) The motor fixing seat is provided with a threaded hole 1, and the motor fixing groove is provided with a threaded hole 2. The servo motor is fixed by passing a bolt 2 through the threaded hole 1 and the threaded hole 2 in sequence; (6) A shock-absorbing pad is installed between the inner side of the motor mounting plate and the outer side of the drive end wall panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following is a brief introduction to the drawings required for describing the embodiment: Figure 1 The transmission structure of the Roots blower is three-dimensional. Figure 1 ; Figure 2 It is the side view of the transmission structure of Roots blower; Figure 3 The transmission structure of the Roots blower is three-dimensional. Figure 2 ; Figure 4 This is the front view of the transmission structure of the Roots blower; Figure 5 This is a three-dimensional diagram of the fan wall panel in the transmission structure of the Roots blower; Figure 6 This is a three-dimensional diagram of the motor mounting plate in the transmission structure of the Roots blower; Figure 7 This is the rear view of the motor mounting plate in the transmission structure of the Roots blower; Figure 8 Illustration of the motor mounting plate installed on the outside of the fan wall panel Figure 1 ; Fig. 9 Illustration of the motor mounting plate installed on the outside of the fan wall panel Figure 2 ; Fig.10 It is the rear view of the transmission structure of the Roots blower; Fig.11 This is a three-dimensional diagram of the servo motor in the transmission structure of the Roots blower; Fig.12 This is a schematic diagram of the coupling used in the transmission structure of the Roots blower.

[0017] Description of reference numerals: 1—fan wall plate, 11—drive end wall plate, 12—tooth end wall plate, 13—bolt hole, 14—bearing hole 1; 2—motor mounting plate, 21—motor mounting slot, 22—positioning hole, 23—motor fixing slot, 24—coupling mounting slot; 3—servo motor, 31—motor fixing seat, 32—output shaft. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described below with reference to the accompanying drawings and embodiments.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0020] Example 1 Combine the following Figure 1-Figure 12 A Roots blower transmission structure in Example 1 is further described as follows: Figure 1-Figure 4 As shown, it includes a fan wall panel 1, a motor mounting plate 2 and a servo motor 3.

[0021] like Figure 3 , Figure 5 and Fig.10 As shown, the fan wall panel 1 includes a drive end wall panel 11 and a tooth end wall panel 12, the motor mounting plate 2 is detachably mounted on the outside of the drive end wall panel 11, the servo motor 3 is mounted on the outside of the motor mounting plate 2, and the servo motor 3 is directly driven and connected to the active impeller of the Roots blower.

[0022] like Figure 5As shown, a plurality of bolt holes 13 are provided on the periphery of the fan wall panel 1, and two bearing holes are provided in the central area of ​​the drive end wall panel 11, the two bearing holes are respectively provided in bearing hole 14 and bearing hole 2, and the impeller shaft end of the active impeller of the Roots blower passes through the bearing hole 14; a center hole is provided on the motor mounting plate 2, and the center hole is coaxial with the bearing hole 14 of the drive end wall panel 11.

[0023] like Figure 6-Figure 9 As shown, three positioning holes 22 are provided on the outer periphery of the motor mounting plate 2, and the three positioning holes 22 are respectively aligned with the corresponding bolt holes 13 on the outer periphery of the fan wall plate 1. A motor mounting groove 21 is provided on the outer side of the motor mounting plate 2, and the center hole is located at the center of the motor mounting groove 21. A coupling mounting groove 24 is also provided on the outer periphery of the center hole; the housing of the servo motor 3 matches the motor mounting groove 21, and the output shaft 32 of the servo motor 3 is connected to the impeller shaft end of the active impeller through a coupling.

[0024] The motor mounting plate 2 of the present invention is provided with a coupling mounting groove 24 on the outside, the center of the coupling mounting groove 24 is the center hole of the motor mounting plate 2, and the bottom of the coupling mounting groove 24 is in contact with the side of the middle part of the coupling away from the servo motor 3 (such as Fig.12 shown).

[0025] In the present invention, the positions of the positioning holes 22 on the periphery of the motor mounting plate 2 are determined according to the bolt holes 13 on the fan wall plate 1, and the positioning hole 22 on the right side is located on the center line of the two positioning holes 22 on the left side. Figure 8 shown.

[0026] like Figure 6 and Fig.11 As shown, a motor fixing groove 23 is further provided on the outer side of the motor mounting plate 2 ; two motor fixing seats 31 are fixedly connected to the end of the servo motor 3 close to the output shaft 32 , and the motor fixing seats 31 can cooperate with the motor fixing groove 23 .

[0027] A shock-absorbing pad is installed between the inner side of the motor mounting plate 2 and the outer side of the drive end wall plate 11 .

[0028] The motor mounting plate 2, the fan wall plate 1 and the casing of the Roots blower are connected by passing bolt 1 through the positioning hole 22, the corresponding bolt hole 13 on the outer periphery of the fan wall plate 1 and the bolt hole of the casing of the Roots blower in sequence.

[0029] The motor fixing seat 31 is provided with a threaded hole 1, and the motor fixing slot 23 is provided with a threaded hole 2. The servo motor 3 is fixed by passing a bolt 2 through the threaded hole 1 and the threaded hole 2 in sequence.

[0030] A Roots blower transmission method utilizes the above-mentioned Roots blower transmission structure to transmit an active impeller in a Roots blower casing, comprising the following contents: a servo motor 3 is mounted on the outside of a blower wall panel 1 through a motor mounting plate 2, and the servo motor 3 directly drives the active impeller; the speed of the active impeller is changed by changing the speed of the servo motor 3.

[0031] Example 2 The difference between this embodiment and embodiment 1 is that the structure of the motor mounting plate 2 is changed, the left side of the motor mounting plate 2 is extended, and the left vertical projection of the motor mounting plate 2 coincides with the left vertical projection of the fan wall panel 1, and a plurality of positioning holes 22 are opened in the left extended part of the motor mounting plate 2.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the protection scope of the technical solution of the present invention.

Claims

1. A Roots blower transmission structure, characterized in that: It comprises a fan wall plate (1), a motor mounting plate (2) and a servo motor (3); The fan wall panel (1) comprises a drive end wall panel (11) and a tooth end wall panel (12); the motor mounting plate (2) is detachably mounted on the outside of the drive end wall panel (11); the servo motor (3) is mounted on the outside of the motor mounting plate (2); and the servo motor (3) is directly connected to the active impeller of the Roots blower.

2. The Roots blower transmission structure according to claim 1, characterized in that: The outer periphery of the fan wall panel (1) is provided with a plurality of bolt holes (13); the central area of ​​the drive end wall panel (11) is provided with two bearing holes, the two bearing holes being respectively bearing hole one (14) and bearing hole two; the impeller shaft end of the active impeller of the Roots blower passes through bearing hole one (14); the motor mounting plate (2) is provided with a center hole, the center hole being coaxial with bearing hole one (14) of the drive end wall panel (11).

3. The Roots blower transmission structure according to claim 2, characterized in that: The outer periphery of the motor mounting plate (2) is provided with three positioning holes (22), and the three positioning holes (22) are respectively aligned with corresponding bolt holes (13) on the outer periphery of the fan wall plate (1).

4. The Roots blower transmission structure according to claim 3, characterized in that: A motor mounting groove (21) is formed on the outside of the motor mounting plate (2), the center hole is located at the center of the motor mounting groove (21), and a coupling mounting groove (24) is formed on the periphery of the center hole; the housing of the servo motor (3) matches the motor mounting groove (21), and the output shaft (32) of the servo motor (3) is connected to the impeller shaft end of the active impeller via a coupling.

5. The Roots blower transmission structure according to claim 4, characterized in that: A motor fixing groove (23) is also provided on the outside of the motor mounting plate (2); two motor fixing seats (31) are fixedly connected to the end of the servo motor (3) close to the output shaft (32), and the motor fixing seats (31) can cooperate with the motor fixing groove (23).

6. The Roots blower transmission structure according to claim 1, characterized in that: A shock-absorbing pad is installed between the inner side of the motor mounting plate (2) and the outer side of the drive end wall plate (11).

7. The Roots blower transmission structure according to claim 3, characterized in that: The motor mounting plate (2), the fan wall plate (1) and the casing of the Roots blower are connected by means of bolts 1 which are passed through the positioning holes (22), the corresponding bolt holes (13) on the outer periphery of the fan wall plate (1) and the bolt holes on the casing of the Roots blower in sequence.

8. The Roots blower transmission structure according to claim 5, characterized in that: The motor fixing seat (31) is provided with a threaded hole 1, and the motor fixing groove (23) is provided with a threaded hole 2. The servo motor (3) is fixed by means of a bolt 2 which passes through the threaded hole 1 and the threaded hole 2 in sequence.

9. A Roots blower transmission method, characterized in that: The Roots blower transmission structure of claim 5 is used to transmit the active impeller in the Roots blower casing, including the following contents: The servo motor (3) is installed on the outside of the fan wall panel (1) via a motor mounting plate (2), and the servo motor (3) directly drives the active impeller; the rotation speed of the active impeller is changed by changing the rotation speed of the servo motor (3).

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