A dough mixer beater support mechanism

Abstract

This utility model relates to a support mechanism for a dough mixer mixer, including a dough hopper and a mixing shaft. Openings are respectively provided on the two side plates of the dough hopper. Flanges coaxial with the mixing shaft are connected to the openings on both side plates. One end of the mixing shaft passes through the left flange and is fitted with a connecting drive sprocket at the end. The other end of the mixing shaft passes through the right flange and is fitted with a connecting worm gear at the end. Both flanges have bearing chambers extending into their inner cavities connected by screws at their ends away from the openings. Two deep groove ball bearings are installed in the bearing chamber of the left flange via bearing spacers. Two oppositely arranged tapered roller bearings are installed in the bearing chamber of the right flange via bearing spacers. A threaded channel is provided on the end face of the mixing shaft passing through the right flange, and a bearing cap is connected via an oiling bolt. An oil outlet channel is provided on the mixing shaft, connecting the oil outlet of the oiling bolt to the tapered roller bearings. This utility model facilitates bearing disassembly, maintenance, and replacement, and allows for lubrication via the oiling bolt, extending its service life.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically to a support mechanism for a dough mixer. Background Technology

[0002] With the rapid development of the food industry and the increasing demands of consumers for food quality, traditional dough mixers can no longer meet the market's need for high-quality dough. Traditional dough mixers have simple structures, short-lived parts, inconvenient maintenance, and difficult bearing replacement, causing a lot of trouble for maintenance personnel and customers. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a support mechanism for a dough mixer mixer, which not only facilitates the replacement and maintenance of bearings but also improves the rigidity of the support. Combined with a built-in oil injection channel, it allows for easy addition of grease, enhancing the stability of the mechanism and extending its service life.

[0004] This utility model is achieved through the following technical solution:

[0005] A dough mixer mixer support mechanism is provided, including a dough hopper and a mixing shaft. Openings are respectively formed on the two side plates of the dough hopper. The mixing shaft passes through both openings laterally and is rotatably connected to the dough hopper. A mixer is mounted on the mixing shaft. Flanges located outside the dough hopper and coaxial with the mixing shaft are respectively connected to the openings on the two side plates. One end of the mixing shaft passes through the left flange and is fitted with a connecting drive sprocket at the end. The other end of the mixing shaft passes through the right flange and is fitted with a connecting worm gear at the end. Both flanges have bearing chambers extending into the flange cavity connected by screws on their end faces away from the openings. Two deep groove ball bearings are installed in the bearing chamber of the left flange through bearing spacers. Two oppositely arranged tapered roller bearings are installed in the bearing chamber of the right flange through bearing spacers. A threaded channel is formed on the end face of the mixing shaft passing through the right flange, and a bearing cap is connected by an oil injection bolt. An oil outlet channel is formed on the mixing shaft, connecting the oil outlet of the oil injection bolt to the tapered roller bearings.

[0006] Furthermore, the stirring shaft includes a main shaft and end shafts connected to both ends of the main shaft and coaxial with the main shaft. The outer diameter of the main shaft is larger than the outer diameter of the end shafts. The bearing chambers on both sides extending into the flange cavity extend to the shaft shoulders of the stirring shaft. Deep groove ball bearings and tapered roller bearings are rotatably mounted on the end shafts on both sides.

[0007] The stirring shaft is designed as an integrated structure of main shaft and end shaft. The formed shoulder can laterally limit the bearings on the end shaft to ensure bearing stability. Two oppositely mounted tapered roller bearings are used on the large worm gear side, and the axial fixation of the stirrer shaft is achieved with the bearing cap and the right bearing spacer. The right end of the stirrer shaft is equipped with a bearing and a large worm gear, and the drive sprocket side is supported by two deep groove ball bearings to improve support rigidity.

[0008] Furthermore, in the bearing housing of the left flange, a bearing retainer is provided between the deep groove ball bearing and the left shoulder, and is fitted onto the left end shaft; in the bearing housing of the right flange, a bearing retainer is provided between the tapered roller bearing and the right shoulder, and is fitted onto the right end shaft.

[0009] Bearing retainers can be used to separate and limit the movement of deep groove ball bearings and tapered roller bearings, ensuring the stability of bearing installation.

[0010] Furthermore, each of the two flanges has a recessed receiving groove in the inner cavity at the end of the port, and a sealing disc fitted on the main shaft is installed in the receiving groove. An oil seal groove is recessed on the side of the sealing disc away from the port, and an oil seal fitted on the main shaft is installed in the oil seal groove. An oil seal retainer fitted on the main shaft is installed on one side of the sealing disc in the receiving groove. Pressure plates that limit the lateral movement of the sealing disc are installed on the inner walls of the two vertical plates at the port by screws.

[0011] The flange has a recessed receiving groove at the end of the port and a sealing plate to ensure the sealing of the dough hopper. An oil seal groove and an oil seal are provided on the side of the sealing plate away from the dough hopper to isolate the lubricating oil and prevent it from entering the dough hopper and contaminating the dough.

[0012] Furthermore, an adjusting cover is inserted into the end face of the right flange. The side of the adjusting cover facing the flange has a protruding annular insertion part that matches the inner cavity of the flange. A bearing cover is installed in the inner cavity of the annular insertion part. The adjusting cover also has a connecting through hole that corresponds to the screw.

[0013] The adjusting gland and bearing gland are installed on the bearing chamber on the right side by screws. The adjusting gland can be inserted into the inner cavity of the right flange through the annular insertion part, which serves to limit the lateral movement of the tapered roller bearing in the right flange.

[0014] Furthermore, both flange seats have oil injection channels that communicate with the flange cavity on their tops, and oil pipes are connected inside the oil injection channels, with oil cups connected to the ends of the oil pipes.

[0015] The oil pipe is installed on the flange seat, and the oil cup is installed in the oil pipe. Lubricating oil can be added through the oil cup to lubricate the right and left flanges in the flange seat, which can reduce wear and extend service life.

[0016] The beneficial effects of this utility model are:

[0017] This invention features a bearing housing within the flange cavity for bearing installation. The bearing housing is connected to the flange end face via screws, allowing for easy disassembly by using screws to push the bearing housing and bearing out of the flange, facilitating bearing replacement and maintenance. A drive sprocket and chain connect the bearing to a reducer. The stirring shaft is supported by two deep groove ball bearings at the drive sprocket, enhancing support rigidity. Two opposing tapered roller bearings are used on the large worm gear side, with bearing caps and intermediate bearing spacers providing axial fixation of the stirring shaft. A threaded hole at the center of the right end face of the stirring shaft accommodates a grease bolt, allowing grease to be added to the tapered roller bearings using a grease gun. Lubricating oil can also be added to the flange via an oil pipe on the flange seat, facilitating internal lubrication, effectively reducing wear, improving overall stability, and enhancing ease of use for maintenance personnel and users, significantly improving maintenance and replacement convenience. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0019] Figure 2 for Figure 1 Enlarged diagram of point A in the middle.

[0020] Figure 3 for Figure 1 Enlarged diagram of point B in the middle.

[0021] Figure 4 for Figure 1 Enlarged diagram of point C in the middle.

[0022] As shown in the figure:

[0023] 1. Flour bucket; 2. Stirring shaft; 3. Agitator; 4. Left flange; 5. Right flange; 6. Vertical plate; 7. Oil pipe; 8. Oil cup; 9. Main shaft; 10. End shaft; 11. Screw; 12. Flange seat; 13. Oil injection channel; 14. Deep groove ball bearing; 15. Bearing retainer; 16. Bearing spacer; 17. Bearing chamber; 18. Drive sprocket; 19. Large worm gear; 20. Tapered roller bearing; 21. Oil outlet channel; 22. Adjusting gland; 23. Oil injection bolt; 24. Bearing gland; 25. Sealing plate; 26. Oil seal; 27. Oil seal retainer; 28. Pressure plate. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the following detailed implementation method will be used to explain the solution.

[0025] A dough mixer mixer support mechanism includes a dough hopper 1 and a mixing shaft 2. Openings are respectively formed on two side plates 6 of the dough hopper 1. The mixing shaft 2 passes through both openings and is rotatably connected to the dough hopper 1. A mixer 3 is mounted on the mixing shaft 2. Flanges located outside the dough hopper 1 and coaxial with the mixing shaft 2 are respectively connected to the openings on the two side plates 6. One end of the mixing shaft 2 passes through the left flange 4 and is fitted with a connecting drive sprocket 18 at the end. The other end of the mixing shaft 2 passes through the right flange 5 and is fitted with a connecting worm gear 19 at the end. Both flanges are located away from the openings. The end face of the left flange 4 is connected to a bearing chamber 17 extending into the flange cavity via screws 11. Two deep groove ball bearings 14 are installed in the bearing chamber 17 via bearing spacers 16. Two oppositely arranged tapered roller bearings 20 are installed in the bearing chamber 17 via bearing spacers 16. The stirring shaft 2 passes through the end face of the right flange 5 and has a threaded channel. A bearing cap 24 is connected to the stirring shaft 2 via an oil filler bolt 23. An oil outlet channel 21 is provided on the stirring shaft 2, connecting the oil outlet of the oil filler bolt 23 to the tapered roller bearings 20. An oil nozzle is installed on the oil filler bolt 23, through which lubricating oil can be added to lubricate the bearings.

[0026] The stirring shaft 2 includes a main shaft 9 and end shafts 10 connected to both ends of the main shaft 9 and coaxial with the main shaft 9. The outer diameter of the main shaft 9 is larger than the outer diameter of the end shaft 10. The bearing chambers 17 extending into the flange cavity on both sides extend to the shaft shoulder of the stirring shaft 2. Deep groove ball bearings 14 and tapered roller bearings 20 are rotatably mounted on the end shafts 10 on both sides.

[0027] A bearing retainer 15, fitted on the left end shaft, is provided in the bearing housing 17 of the left flange 4 between the deep groove ball bearing 14 and the left shoulder; a bearing retainer 15, fitted on the right end shaft, is provided in the bearing housing 17 of the right flange 5 between the tapered roller bearing 20 and the right shoulder.

[0028] Each of the two flanges has a recessed inner cavity at the opening, forming a receiving groove. A sealing disc 25, fitted onto the main shaft, is installed in the receiving groove. An oil seal groove is recessed on the side of the sealing disc 25 away from the opening, and an oil seal 26, fitted onto the main shaft 9, is installed in the oil seal groove. An oil seal retainer 27, fitted onto the main shaft 9, is installed on one side of the receiving groove of the sealing disc 25. Pressure plates 28, which laterally limit the sealing disc 25, are installed on the inner walls of the two side uprights 6 at the openings using screws 11. The outer circle of the sealing disc 25 is installed inside the flange at the opening of the two side uprights 6, and the inner circle of the sealing disc 25 is installed on the main shaft 9. The oil seal 26 is installed inside the sealing disc 25, and the oil seal retainer 27 fixes the oil seal 26. The pressure plates 28 are fixed to the two side uprights 6 by screws 11 and also fix the sealing disc 25. The sealing disc 25, oil seal 26, and oil seal retainer 27 improve the sealing performance of the hopper 1.

[0029] An adjusting cover 22 is also inserted into the end face of the right flange 5. The side of the adjusting cover 22 facing the flange has a protruding annular insertion part that matches the inner cavity of the flange. A bearing cover 24 is installed in the inner cavity of the annular insertion part. The adjusting cover 22 also has a connecting through hole that corresponds to the screw 11. The adjusting cover 22 and the bearing cover 24 are installed on the bearing chamber 17 on the right side by screws 11.

[0030] Both flange seats 12 have oil injection channels 13 on their tops that communicate with the flange cavities, and oil pipes 7 are connected to the oil injection channels 13. The ends of the oil pipes 7 are connected to oil cups 8. Lubricating oil can be added through the oil cups 8 to lubricate the right flange 5 and left flange 4 inside the flange seats 12.

[0031] This invention features a large worm gear 19 mounted on the right end of the stirring shaft 2. Two opposing tapered roller bearings 20 are mounted on the side of the worm gear 19, and the axial fixation of the stirring shaft 2 is achieved through the use of a bearing cap 24 and a bearing spacer 16. A drive sprocket 18 is mounted on the left end of the stirring shaft 2, which, along with a drive chain, connects to a reduction motor to drive the rotation of the stirring shaft 2. Two deep groove ball bearings 14 are used for support, improving support rigidity and ensuring the stability of the stirring shaft 2.

[0032] The bearings at both ends of the stirring shaft 2 are installed in the bearing chamber 17. The bearing chamber 17 is connected to the end face of the stirring shaft 2 by screws 11. When disassembling, the bearing chamber 17 together with the bearing can be pushed out of the flange by the screws 11, which is convenient for replacing the bearing and maintenance.

[0033] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A dough mixer mixer support mechanism, comprising a dough hopper and a mixing shaft, wherein openings are respectively formed on the two upright plates of the dough hopper facing each other, the mixing shaft passes through the two openings laterally and is rotatably connected to the dough hopper, and a mixer is mounted on the mixing shaft, characterized in that: Both upright plates are connected to flanges located outside the hopper and coaxial with the stirring shaft at the opening. One end of the stirring shaft passes through the left flange and is fitted with a connecting drive sprocket at the end. The other end of the stirring shaft passes through the right flange and is fitted with a connecting worm gear at the end. Both flanges have bearing chambers extending into the flange cavity connected by screws on the end face away from the opening. The left flange has two deep groove ball bearings installed in its bearing chamber through bearing spacers. The right flange has two oppositely arranged tapered roller bearings installed in its bearing chamber through bearing spacers. The end face of the stirring shaft passing through the right flange has a threaded channel and is connected to a bearing cap by an oil injection bolt. The stirring shaft has an oil outlet channel that connects the oil outlet of the oil injection bolt to the tapered roller bearing.

2. The dough mixer support mechanism according to claim 1, characterized in that: The stirring shaft includes a main shaft and end shafts connected to both ends of the main shaft and coaxial with the main shaft. The outer diameter of the main shaft is larger than the outer diameter of the end shafts. The bearing chambers on both sides that extend into the flange cavity extend to the shoulders of the stirring shaft. Deep groove ball bearings and tapered roller bearings are rotatably mounted on the end shafts on both sides.

3. The dough mixer support mechanism according to claim 2, characterized in that: The bearing housing of the left flange has a bearing retainer fitted on the left end shaft between the deep groove ball bearing and the left shoulder; the bearing housing of the right flange has a bearing retainer fitted on the right end shaft between the tapered roller bearing and the right shoulder.

4. The dough mixer support mechanism according to claim 3, characterized in that: Each of the two flanges has a recessed receiving groove at the end cavity of the port, and a sealing disc fitted on the main shaft is installed in the receiving groove. An oil seal groove is recessed on the side of the sealing disc away from the port, and an oil seal fitted on the main shaft is installed in the oil seal groove. An oil seal retainer is fitted on the main shaft on one side of the sealing disc in the receiving groove. Pressure plates for lateral limiting of the sealing disc are installed on the inner walls of the two vertical plates at the port by screws.

5. The dough mixer support mechanism according to claim 1, characterized in that: An adjusting cover is also inserted into the end face of the right flange. The side of the adjusting cover facing the flange has a protruding annular insertion part that matches the inner cavity of the flange. A bearing cover is installed in the inner cavity of the annular insertion part. The adjusting cover also has a connecting through hole that corresponds to the screw.

6. The dough mixer support mechanism according to claim 1, characterized in that: Both flanges have oil injection channels on the top of their flange seats that communicate with the flange cavity, and oil pipes are connected to the oil injection channels. An oil cup is connected to the end of the oil pipe.

Images