A dual worm gear drive device

Abstract

This utility model belongs to the field of drive devices, specifically relating to a dual worm gear drive device, including a mounting plate. A drive shaft is rotatably sleeved inside the mounting plate via bearings. A first drive wheel is fixedly sleeved on the outer side of the drive shaft, and a second drive wheel is fixedly sleeved on the outer side of the drive shaft and above the first drive wheel. A bracket is fixedly connected to the upper end of the mounting plate, and a reducer is fixedly mounted on the right end of the bracket. This dual worm gear drive device drives the mixing tank and the mixing blades to rotate in opposite directions via the dual worm gears, completely breaking the "clumping tendency" of materials rotating synchronously with a single component. This allows the materials to form bidirectional convection within the tank, significantly improving mixing uniformity. Furthermore, compared to the gear transmission in the utility model patent with patent authorization announcement number CN220972843U, the dual worm gear drive has higher power transmission efficiency, and the rotation speed can be flexibly adjusted according to the material viscosity, effectively shortening the mixing time and improving operational efficiency.

Description

Technical Field

[0001] This utility model relates to the field of drive device technology, specifically a double worm gear drive device. Background Technology

[0002] In the mixing of building or industrial materials such as concrete, mortar, and cement, mixing equipment is one of the core pieces of equipment. However, traditional vertical mixers generally suffer from the problem of "material clumping," meaning that the material rotates synchronously with a single mixing blade, failing to form effective convection, resulting in uneven mixing and low mixing efficiency. Existing technologies, such as the "Double Rotating Bottom-Mounted Mixer" with authorization announcement number CN220972843U, attempt to alleviate some of the clumping problem by using a combination of "fixed seat + rotating seat + connecting seat" to achieve reverse rotation of the material bucket and mixing blades. However, this solution has significant limitations: it relies on a multi-stage gear transmission of "drive shaft - second gear - first gear - gear ring" to drive the material bucket, resulting in a complex structure that is prone to power loss due to dust intrusion and gear wear; it also requires multiple sets of bolts to connect the rotating seat and connecting seat, and the material bucket and connecting seat, which are prone to loosening under vibration; furthermore, it does not optimize power transmission for high-viscosity materials and contains particles, resulting in insufficient adaptability and difficulty in meeting the needs of efficient and stable industrial mixing. Therefore, improvements to existing technologies are needed. Utility Model Content

[0003] The purpose of this invention is to provide a dual worm gear drive device, which solves the problem of insufficient driving stirring effect.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a double worm gear drive device, comprising a mounting plate, a drive shaft rotatably sleeved inside the mounting plate via bearings, a drive wheel one fixedly sleeved on the outer side of the drive shaft, a drive wheel two fixedly sleeved on the outer side of the drive shaft and above the drive wheel one, a bracket fixedly connected to the upper end of the mounting plate, a reducer one fixedly mounted on the right end of the bracket, a reducer two fixedly mounted on the left end of the bracket, a support frame fixedly connected to the upper end of the mounting plate and on the left side of the bracket, a bearing sleeve rotatably sleeved inside the support frame, the bearing... A special-shaped flange is fixedly fitted to the outer side of the sleeve. A connector is fixedly installed on the outer side of the special-shaped flange by multiple bolts. A mixing tank is fixedly connected to the left end of the connector. A transmission wheel is fixedly connected to the bottom input end of the second reducer. A sprocket is fixedly connected to the output end of the second reducer. The sprocket is fixedly connected to the bearing sleeve. A pulley is fixedly connected to the bottom input end of the first reducer. An output shaft is provided inside the first reducer. The output shaft is rotatably fitted inside the output end of the second reducer. The output shaft is rotatably connected to the mixing tank. Two staggered mixing blades are fixedly fitted to the outer side of the output shaft.

[0005] Preferably, the drive wheel and the transmission wheel are connected by a belt. By designing the drive wheel and the transmission wheel to be connected by a belt, the transmission wheel can be rotated when the drive wheel rotates.

[0006] Preferably, the second drive wheel is connected to the pulley via a belt. By designing the second drive wheel to be connected to the pulley via a belt, the pulley can rotate when the second drive wheel rotates.

[0007] Preferably, the input end of the drive shaft is fixedly installed to the output end of the motor. By designing the connection of the motor, the drive shaft can be driven to rotate.

[0008] Preferably, a bearing retaining sleeve is rotatably fitted onto the outer side of the bearing sleeve, and the bearing retaining sleeve and the support frame are fixedly installed by multiple sets of bolts arranged in a ring. By designing the bearing retaining sleeve, the bearing sleeve and the support frame can be installed.

[0009] Preferably, the output shaft is rotatably fitted inside the bearing sleeve. By designing the output shaft, it can rotate relative to the bearing sleeve.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This dual worm gear drive device drives the mixing tank and the mixing blades to rotate in opposite directions through the dual worm gears, which can completely break the "clumping tendency" of materials rotating synchronously with a single component, so that the materials form bidirectional convection in the tank, greatly improving the mixing uniformity. At the same time, compared with the gear transmission in the utility model patent with patent authorization announcement number CN220972843U, the dual worm gear drive has higher power transmission efficiency, and the speed can be flexibly adjusted according to the viscosity of the material to effectively shorten the mixing time and improve the work efficiency.

[0011] 2. This device integrates specialized parts such as bearing sleeves, reducer connectors, and mixing tanks. The bearing sleeves reduce frictional losses between the worm gear and the mixing shaft, the reducer connectors ensure smooth power output, and the stainless steel tank body enhances wear and corrosion resistance. The overall structural stability is significantly superior to the multi-bolt connection + gear transmission design in the utility model patent with patent authorization announcement number CN220972843U. Furthermore, each part adopts a standardized design, making subsequent part replacement and maintenance more convenient, reducing maintenance costs and downtime, and adapting to continuous industrial operation. Attached Figure Description

[0012] Figure 1 The overall three-dimensional structure of this utility model Figure 1 ; Figure 2 The overall three-dimensional structure of this utility model Figure 2 ; Figure 3 The overall three-dimensional structure of this utility model Figure 3 .

[0013] In the diagram: 1. Mounting plate; 2. Drive shaft; 3. Drive wheel one; 4. Drive wheel two; 5. Bracket; 6. Reducer one; 7. Reducer two; 8. Support frame; 9. Bearing sleeve; 10. Bearing limit sleeve; 11. Special flange; 12. Connecting parts; 13. Mixing tank; 14. Transmission wheel; 15. Sprocket; 16. Pulley; 17. Output shaft; 18. Mixing blade. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Please see Figure 1 , Figure 2 , Figure 3 A dual worm gear drive device includes a mounting plate 1. A drive shaft 2 is rotatably sleeved inside the mounting plate 1 via bearings. The input end of the drive shaft 2 is fixedly installed with the output end of a motor. By designing the connection of the motor, the drive shaft 2 can be driven to rotate. A drive wheel 3 is fixedly sleeved on the outside of the drive shaft 2. A drive wheel 4 is fixedly sleeved on the outside of the drive shaft 2 and above the drive wheel 3. A bracket 5 is fixedly connected to the upper end of the mounting plate 1. A reducer 6 is fixedly installed on the right end of the bracket 5. A reducer 7 is fixedly installed on the left end of the bracket 5. A support frame 8 is fixedly connected to the upper end of the mounting plate 1 and to the left side of the bracket 5. A bearing sleeve 9 is rotatably sleeved inside the support frame 8. A bearing limiting sleeve 10 is rotatably sleeved on the outside of the bearing sleeve 9. The bearing limiting sleeve 10 and the support frame 8 are fixedly installed by multiple sets of bolts arranged in a ring. By designing the bearing limiting sleeve 10, the bearing sleeve 9 and the support frame 8 can be installed.

[0016] Please see Figure 1 , Figure 2 , Figure 3 A special-shaped flange 11 is fixedly sleeved on the outside of the bearing sleeve 9. A connector 12 is fixedly installed on the outside of the special-shaped flange 11 by multiple bolts. A mixing tank 13 is fixedly connected to the left end of the connector 12. A transmission wheel 14 is fixedly connected to the bottom input end of the reducer 2 7. The drive wheel 1 3 is connected to the transmission wheel 14 by a belt. By designing the belt connection between the drive wheel 1 3 and the transmission wheel 14, the transmission wheel 14 can be rotated when the drive wheel 1 3 rotates.

[0017] Please see Figure 1 , Figure 2 , Figure 3The output end of reducer 2 7 is fixedly connected to a sprocket 15, which is fixedly connected to a bearing sleeve 9. The bottom input end of reducer 1 6 is fixedly connected to a pulley 16. Drive wheel 2 4 is connected to pulley 16 by a belt. By design, drive wheel 2 4 and pulley 16 are connected by a belt. When drive wheel 2 4 rotates, pulley 16 can rotate. The inside of reducer 1 6 is provided with an output shaft 17. The output shaft 17 is rotatably sleeved inside the output end of reducer 2 7. The output shaft 17 is rotatably sleeved inside the bearing sleeve 9. By design, the output shaft 17 can rotate relative to the bearing sleeve 9. The output shaft 17 is rotatably connected to the mixing tank 13. Two staggered stirring blades 18 are fixedly sleeved on the outside of the output shaft 17.

[0018] The specific implementation process of this utility model is as follows: In use, the output end of the motor is connected to the drive shaft 2. The motor drives the drive shaft 2 to rotate. The drive shaft 2 drives the drive wheel 3 and the drive wheel 4 to rotate. The drive wheel 3 drives the transmission wheel 14 to rotate through the belt. The transmission wheel 14 drives the input end of the reducer 7 to rotate. Then the reducer 7 drives the sprocket 15 to rotate. The sprocket 15 drives the bearing sleeve 9 to rotate, thereby realizing the rotation of the special flange 11, the connecting part 12 and the mixing tank 13. When the drive wheel 4 rotates, it drives the pulley 16 to rotate through the belt. The pulley 16 drives the input end of the reducer 6 to rotate, thereby driving the output shaft 17 to rotate. The output shaft 17 drives the stirring blade 18 to rotate to stir the material. The direction of rotation of the stirring blade 18 is opposite to that of the mixing tank 13, which can improve the stirring effect of the material.

[0019] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A double worm gear drive comprising a mounting plate (1), characterized in that: The mounting plate (1) is internally fitted with a drive shaft (2) via a bearing. A drive wheel (3) is fixedly fitted to the outside of the drive shaft (2). A drive wheel (4) is fixedly fitted to the outside of the drive shaft (2) and above the drive wheel (3). A bracket (5) is fixedly connected to the upper end of the mounting plate (1). A reducer (6) is fixedly installed at the right end of the bracket (5). A reducer (7) is fixedly installed at the left end of the bracket (5). A support frame (8) is fixedly connected to the upper end of the mounting plate (1) and to the left side of the bracket (5). A bearing sleeve (9) is rotatably fitted inside the support frame (8). A special-shaped flange (11) is fixedly fitted to the outside of the bearing sleeve (9). A connector (12) is fixedly installed on the side by multiple bolts. The left end of the connector (12) is fixedly connected to a stirring tank (13). The bottom input end of the reducer (7) is fixedly connected to a transmission wheel (14). The output end of the reducer (7) is fixedly connected to a sprocket (15). The sprocket (15) is fixedly connected to a bearing sleeve (9). The bottom input end of the reducer (6) is fixedly connected to a pulley (16). The reducer (6) has an output shaft (17) inside. The output shaft (17) is rotatably sleeved inside the output end of the reducer (7). The output shaft (17) is rotatably connected to the stirring tank (13). Two staggered stirring blades (18) are fixedly sleeved on the outside of the output shaft (17).

2. A double worm gear drive according to claim 1, characterized in that: The drive wheel (3) and the transmission wheel (14) are connected by a belt.

3. A double worm gear drive as claimed in claim 1, wherein: The drive wheel (4) is connected to the pulley (16) by a belt.

4. A double worm gear drive as claimed in claim 1, characterized in that: The input end of the drive shaft (2) is fixedly installed at the output end of the motor.

5. A double worm gear drive as claimed in claim 1, wherein: The bearing sleeve (9) is rotatably sleeved with a bearing limiting sleeve (10), and the bearing limiting sleeve (10) and the support frame (8) are fixedly installed by multiple sets of bolts arranged in a ring.

6. A double worm gear drive as claimed in claim 1, characterized in that: The output shaft (17) is rotatably sleeved inside the bearing sleeve (9).

Images