Sanitary deceleration transmission mechanism special for stirring

Abstract

The invention discloses a sanitary deceleration transmission mechanism special for stirring. The sanitary deceleration transmission mechanism comprises a machine housing, an input shaft and an outputshaft, wherein the machine housing is composed of an upper box and a lower box, a driving gear is mounted on the input shaft, and a driven gear is mounted on the output shaft; the driving gear is engaged with the driven gear for driving the output shaft to rotate; the lower box is internally provided with a dry well sleeve, and the lower box and the dry well sleeve are integrally casted; an oil storing groove is formed between the dry well sleeve and the lower box, and the driving gear and the driven gear are arranged in the oil storing groove; bearings are mounted on the outer wall of the drywell sleeve, the driven gear is mounted on the dry well sleeve through the bearings, and the driven gear is connected with the output shaft through an output shaft supporting arm; and the output shaft supporting arm comprises a gear connecting part, a supporting part and a transition part, wherein the gear connecting part is connected with the upper end of the driven gear, and the supporting partextends into the inner diameter of the dry well sleeve and is in close fit with the upper end of the output shaft. The sanitary deceleration transmission mechanism special for stirring has the advantages of being small in size, simple in structure, good in oil leaking preventing effect and the like.

Description

technical field [0001] The invention relates to a deceleration transmission mechanism dedicated to hygienic stirring. Background technique [0002] The general reduction transmission is usually sealed with a skeleton oil seal, which seals the lubricating oil placed in the reduction transmission to prevent oil leakage. However, during the working process of the deceleration transmission device, the long-term friction between the skeleton oil seal and the shaft is likely to cause wear of the skeleton oil seal, or the skeleton oil seal is aging due to long-term work, which will cause oil leakage, thereby affecting the life of the deceleration transmission device or cause product contamination. [0003] In order to solve this problem, Chinese Patent: Patent No.: 200720151973.0, Invention Name: An oil leakage prevention device for a reducer, discloses a device that uses a dry well casing to isolate the lubricating oil in the reducer from the output shaft to achieve the leak prev...

AI Technical Summary

Problems solved by technology

The structure of the invention has the following deficiencies: 1. The dry well casing and the frame are split structures, and the dry well casing needs to be fixed on the frame through seals and bolts. The assembly process is complicated and the seal is used for a long time. 2. The hollow shaft is connected to the upper end of the output shaft for transmission movement, so a longer length of the output shaft is required for connection. The dry well sleeve is placed between the hollow shaft and the output shaft. This structure causes the output shaft to The length is lengthened, which causes the overall structure of the reduction transmission device to become larger; 3. Due to the length of the output shaft is too long, multiple sets of bearings are required to support the output shaft in order to vibrate during the rotation of the output shaft, which further complicates the structure of the reduction transmission device ; 4. The torque is transmitted through the hollow shaft. When the torque is too large, the hollow shaft is easy to twist and cause damage; 5. There is a small gap between the hollow shaft and the dry well casing, the dry well casing and the output shaft. When the output shaft rotates During the process, the gap between the hollow shaft and the dry well casing, the dry well casing and the output shaft is prone to pressure difference, which will cause the lubricating oil placed in the chassis to be sucked into the gap and cause oil leakage

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