Belt type vacuum filtration driving speed reducer

Abstract

A belt type vacuum filtering driving speed reducer comprises a motor installation plate and a driving motor, an input machine shell is arranged below the motor installation plate through a screw rod, an input shaft in belt transmission with the driving motor is arranged in the input machine shell, the tightness degree of a belt can be conveniently adjusted through a belt transmission tensioning mechanism, and a gear box, a gear ring and a second output flange are sequentially arranged on the input machine shell. A driving motor transmits power to an input shaft through a transmission belt, the power enters a two-stage planetary speed reduction mechanism sharing a gear ring after being subjected to preliminary speed reduction and steering through multiple stages of gears, an output gear shaft serves as a first-stage sun gear to drive a first planetary gear, and output of a first-stage planet carrier drives a second planetary gear through the sun gear shaft; the double-stage planetary gear train has the advantages of being compact in overall structure, good in rigidity, high in transmission efficiency and capable of providing great output torque.

Description

TECHNICAL FIELD

[0001] The utility model relates to a speed reducer, especially a belt type vacuum filter driving speed reducer. BACKGROUND

[0002] The belt type vacuum filter is a key equipment for solid-liquid separation in the fields of chemical industry, environmental protection, mining, food and pharmaceuticals, etc. Its core working principle is to form filter cake on the filter belt through vacuum suction and drive the filter belt to run continuously to complete the processes of filtering, washing, dewatering and unloading, etc. In this process, the driving system needs to provide stable, continuous and large enough torque to overcome the resistance of the filter belt, the friction of the material and the resistance of the vacuum sealing system, especially when dealing with viscous and high solid content materials, the starting and running torque requirements of the driving device are higher.

[0003] At present, the traditional driving schemes of the belt type vacuum filter on the market mainly exist in the following forms: 1. Standard worm and gear reducer or gear reducer is adopted, power is transmitted to the driving roller of the filter through the chain or belt wheel on the output shaft through chain or belt, the whole transmission system structure of this scheme is loose, occupies large space, is not conducive to the compact design of the equipment, the worm and gear transmission efficiency is low, the energy consumption is large, the exposed chain or belt transmission exists safety hidden danger, needs to additionally install protective cover, and the tension adjusting mechanism is complex and inconvenient to maintain; 2. Large reduction ratio reducer (such as cycloidal pin wheel reducer or large size gear reducer) is directly driven, if large torque output requirement is to be met, such reducer is usually large in size and heavy in weight, leading to heavy structure of the equipment and high cost, at the same time, the single reduction form faces challenges in reliability and service life when bearing frequent start and impact load; 3. The scheme of simply connecting two kinds of reduction modes, these schemes usually only simply stack functions, and have not carried out highly integrated design, they have problems of many connecting parts, long transmission chain, insufficient overall rigidity, easy vibration and noise, etc., especially when great transmission ratio is needed, it usually means that larger reducer or multi-stage external transmission is needed, which further deteriorates the efficiency, reliability and compactness of the transmission system.

[0004] In summary, the driving system of the belt type vacuum filter in the prior art generally has technical problems of insufficient compactness of structure, transmission efficiency to be improved, difficult to achieve the best balance between transmission ratio and torque output in a compact space, and inconvenient maintenance and adjustment, etc. Therefore, there is an urgent need in the field for a new driving speed reducer which can integrate large transmission ratio, large torque output, high structural rigidity and compact size, convenient maintenance, to meet the requirements of modern industry on high performance and high reliability of equipment. SUMMARY

[0005] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a belt-type vacuum filter drive reducer with a compact structure, large transmission ratio, and strong load-bearing capacity.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a belt-type vacuum filter drive reducer, comprising:

[0007] A motor mounting plate on which a drive motor is fixedly mounted, and the output shaft of the drive motor is provided with an output pulley;

[0008] An input housing is suspended and mounted below the motor mounting plate by at least one screw, and adjusting nuts located on the upper and lower sides of the input housing are sleeved on the screw; an input shaft is rotatably mounted inside the input housing, and an input pulley is provided at the input end of the input shaft and connected to the output pulley via a transmission belt;

[0009] A gearbox is connected to one side of the input shaft output end of the input housing; an output gear shaft that is rotatably connected to the input shaft is rotatably disposed inside the gearbox.

[0010] A gear ring is connected to the gearbox via a first output flange, and a second output flange is provided at the other end of the gear ring; the output end of the output gear shaft extends into the gear ring and serves as the first-stage sun gear;

[0011] A primary planetary carrier is sleeved on the outside of the output gear shaft and rotatably supported inside the gear ring. A first planetary gear that meshes with the output gear shaft and the gear ring is rotatably mounted on the primary planetary carrier via a first planetary shaft.

[0012] The sun gear shaft is connected to the output end of the first-stage planetary carrier.

[0013] A secondary planetary carrier is fitted outside the sun gear shaft. A second planetary gear, which meshes with the sun gear shaft and the gear ring, is rotatably mounted on the secondary planetary carrier via a second planetary shaft. The output end of the secondary planetary carrier extends outward through the second output flange.

[0014] Preferably, a locking nut is also screwed onto the screw, which abuts against the lower surface of the motor mounting plate to fix the screw.

[0015] Preferably, there are two or more screws, symmetrically arranged on both sides of the input housing.

[0016] Preferably, the screw is provided with a protective cover covering the outside of the input pulley and the output pulley via an adjusting nut.

[0017] Preferably, the output end of the input shaft extends into the gearbox and is provided with an input gear; a bevel gear shaft and a transition gear shaft are also rotatably disposed inside the gearbox; an intermediate gear that meshes with the input gear is disposed on the bevel gear shaft; the transition gear shaft is disposed perpendicular to the bevel gear shaft and is provided with a bevel gear that meshes with the bevel gear at the end of the bevel gear shaft; the output gear shaft is disposed parallel to the transition gear shaft and is provided with an output gear that meshes with the gear on the transition gear shaft.

[0018] Preferably, an internal gear ring is provided at the connection between the output end of the first-stage planetary carrier and the sun gear shaft, the sun gear shaft is provided with connecting teeth that mesh with the internal gear ring, and a support ring and a retaining ring are provided between the end of the sun gear shaft and the first-stage planetary carrier.

[0019] This invention integrates a drive motor, belt drive, multi-stage gear reduction (bevel gears, parallel shaft gears), and two-stage planetary reducer into a compact system. This design reduces external connections, improves overall rigidity and transmission efficiency, and saves installation space. The invention cleverly utilizes the buffering, shock absorption, and distance adjustment advantages of belt drive, and achieves a high overall transmission ratio and output torque through multi-stage gears and planetary reducers. The vertical position of the drive motor can be easily adjusted using the motor mounting plate, screws, and adjusting nuts, thereby tightening or loosening the transmission belt, making maintenance and adjustment very convenient. The two-stage planetary reducers share the same gear ring, greatly reducing the radial dimension and making the end structure of the entire reducer very compact, while providing extremely high output torque and stability. A protective cover covering the pulleys improves the safety of the equipment. Furthermore, the screw-fixed protective cover enables multi-functional reuse of components. Attached Figure Description

[0020] Fig. 1 This is a front sectional view of an embodiment of the present utility model;

[0021] Fig. 2 This is a side sectional view of an embodiment of the present utility model.

[0022] In the diagram: 1. Motor mounting plate; 2. Drive motor; 3. Output pulley; 4. Input housing; 5. Screw; 6. Adjusting nut; 7. Input shaft; 8. Drive belt; 9. Input pulley; 10. Gearbox; 11. Input gear; 12. Bevel gear shaft; 13. Transition gear shaft; 14. Output gear shaft; 15. Intermediate gear; 16. Bevel gear; 17. Output gear; 18. Gear ring; 19. First output flange; 20. Second output flange; 21. First-stage planetary carrier; 22. First planetary shaft; 23. First planetary gear; 24. Sun gear shaft; 25. Second-stage planetary carrier; 26. Second planetary shaft; 27. Second planetary gear; 28. Locking nut; 29. ​​Protective cover; 30. Internal gear ring; 31. Connecting gear; 32. Support ring; 33. Retaining ring. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. Example

[0024] like Figs. 1-2 The belt-driven vacuum filter reducer shown includes a motor mounting plate 1, an input housing 4, a gearbox 10, a gear ring 18, a first-stage planetary carrier 21, a sun gear shaft 24, and a second-stage planetary carrier 25.

[0025] A drive motor 2 is fixedly mounted on the motor mounting plate 1, and an output pulley 3 is provided on the output shaft of the drive motor 2. The input housing 4 is suspended and mounted below the motor mounting plate 1 by two screws 5. The two screws 5 are symmetrically arranged on both sides of the input housing 4. Adjusting nuts 6 located on the upper and lower sides of the input housing 4 are sleeved on the two screws 5. Locking nuts 28 are also screwed onto the screws 5, which abut against the lower surface of the motor mounting plate 1 to fix the screws 5. An input shaft 7 is rotatably mounted inside the input housing 4. An input pulley 9 connected to the output pulley 3 via a transmission belt 8 is provided at the input end of the input shaft 7. A protective cover 29 covering the outside of the input pulley 9 and the output pulley 3 is provided on the screws 5 by the adjusting nuts 6.

[0026] The gearbox 10 is connected to the output end of the input shaft 7 of the input housing 4; the output end of the input shaft 7 extends into the gearbox 10 and is provided with an input gear 11; a bevel gear shaft 12, a transition gear shaft 13 and an output gear shaft 14 are also rotatably arranged inside the gearbox 10; an intermediate gear 15 that meshes with the input gear 11 is provided on the bevel gear shaft 12; the transition gear shaft 13 is arranged perpendicular to the bevel gear shaft 12 and is provided with a bevel gear 16 that meshes with the bevel gear at the end of the bevel gear shaft 12; the output gear shaft 14 is arranged parallel to the transition gear shaft 13 and is provided with an output gear 17 that meshes with the gear on the transition gear shaft 13.

[0027] The gear ring 18 is connected to the gearbox 10 via a first output flange 19, and a second output flange 20 is provided at the other end of the gear ring 18; the output end of the output gear shaft 14 extends into the gear ring 18 and serves as the first-stage sun gear; the first-stage planetary carrier 21 is sleeved on the outside of the output gear shaft 14 and rotatably supported within the gear ring 18, and a first planetary gear 23, which meshes simultaneously with the output gear shaft 14 and the gear ring 18, is rotatably mounted on the first-stage planetary carrier 21 via a first planetary shaft 22; the sun gear shaft 24 is connected to the output end of the first-stage planetary carrier 21, and the first... An internal gear ring 30 is provided at the connection between the output end of the first-stage planetary carrier 21 and the sun gear shaft 24. The sun gear shaft 24 is provided with connecting teeth 31 that mesh with the internal gear ring 30. A support ring 32 and a retaining ring 33 are provided between the end of the sun gear shaft 24 and the first-stage planetary carrier 21. The second-stage planetary carrier 25 is sleeved on the outside of the sun gear shaft 24. A second planetary gear 27 that meshes with the sun gear shaft 24 and the gear ring 18 is rotatably mounted on the second-stage planetary carrier 25 via a second planetary shaft 26. The output end of the second-stage planetary carrier 25 extends outward through the second output flange 20.

[0028] This invention integrates a drive motor 2, belt drive, multi-stage gear reduction (bevel gear, parallel shaft gear), and two-stage planetary reducer into a compact system. This design reduces external connections, improves overall rigidity and transmission efficiency, and saves installation space. The invention cleverly utilizes the buffering, shock absorption, and distance adjustment advantages of belt drive, and achieves a high overall transmission ratio and output torque through multi-stage gears and planetary reducers. The vertical position of the drive motor 2 can be easily adjusted by the cooperation of the motor mounting plate 1, screw 5, and adjusting nut 6, thereby tightening or loosening the transmission belt 8, making maintenance and adjustment very convenient. The two-stage planetary reducers directly share the same gear ring 18, greatly reducing the radial dimension and making the end structure of the entire reducer very compact, while providing extremely high output torque and stability. A protective cover 29 covering the pulleys improves the safety of the equipment. Simultaneously, fixing the protective cover 29 with screw 5 enables multi-functional reuse of components.

[0029] The embodiments described above are merely preferred solutions of this utility model and are not intended to limit this utility model in any way. Other variations and modifications are possible without departing from the technical solutions described in the claims.

Claims

1. A belt-driven vacuum filter reducer, characterized in that: include: A motor mounting plate (1) is fixedly mounted on which a drive motor (2) is mounted, and the output shaft of the drive motor (2) is provided with an output pulley (3). The input housing (4) is suspended and installed below the motor mounting plate (1) by at least one screw (5). Adjusting nuts (6) located on the upper and lower sides of the input housing (4) are sleeved on the screw (5). An input shaft (7) is rotatably installed inside the input housing (4). An input pulley (9) is provided at the input end of the input shaft (7) and connected to the output pulley (3) by a transmission belt (8). A gearbox (10) is connected to the output end of the input shaft (7) of the input housing (4); an output gear shaft (14) that is rotatably connected to the input shaft (7) is rotatably disposed inside the gearbox (10). The gear ring (18) is connected to the gearbox (10) via the first output flange (19), and the other end of the gear ring (18) is provided with a second output flange (20); the output end of the output gear shaft (14) extends into the gear ring (18) and serves as the first-stage sun gear; A first-stage planetary carrier (21) is sleeved on the outside of the output gear shaft (14) and rotatably supported in the gear ring (18). A first planetary gear (23) is rotatably mounted on the first-stage planetary carrier (21) via a first planetary shaft (22) and meshes simultaneously with the output gear shaft (14) and the gear ring (18). The sun gear shaft (24) is connected to the output end of the first-stage planetary carrier (21); A secondary planetary carrier (25) is fitted on the outside of the sun gear shaft (24). A second planetary gear (27) is rotatably mounted on the secondary planetary carrier (25) via a second planetary shaft (26) and meshes with the sun gear shaft (24) and the gear ring (18). The output end of the secondary planetary carrier (25) extends outward through the second output flange (20).

2. The belt-type vacuum filter drive reducer according to claim 1, characterized in that: A locking nut (28) is also screwed onto the screw (5) and abuts against the lower surface of the motor mounting plate (1) to fix the screw (5).

3. The belt-type vacuum filter drive reducer according to claim 1, characterized in that: The number of screws (5) is two or more, symmetrically arranged on both sides of the input housing (4).

4. The belt-type vacuum filter drive reducer according to claim 1, characterized in that: The screw (5) is provided with a protective cover (29) covering the outside of the input pulley (9) and the output pulley (3) via an adjusting nut (6).

5. The belt-type vacuum filter drive reducer according to claim 1, characterized in that: The output end of the input shaft (7) extends into the gearbox (10) and is provided with an input gear (11); a bevel gear shaft (12) and a transition gear shaft (13) are also rotatably provided inside the gearbox (10); an intermediate gear (15) that meshes with the input gear (11) is provided on the bevel gear shaft (12); the transition gear shaft (13) is perpendicular to the bevel gear shaft (12) and is provided with a bevel gear (16) that meshes with the bevel gear at the end of the bevel gear shaft (12); the output gear shaft (14) is parallel to the transition gear shaft (13) and is provided with an output gear (17) that meshes with the gear on the transition gear shaft (13).

6. The belt-type vacuum filter drive reducer according to claim 1, characterized in that: An internal gear ring (30) is provided at the connection between the output end of the first-stage planetary carrier (21) and the sun gear shaft (24). The sun gear shaft (24) is provided with connecting teeth (31) that mesh with the internal gear ring (30). A support ring (32) and a retaining ring (33) are provided between the end of the sun gear shaft (24) and the first-stage planetary carrier (21).

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