Special forced mixer for normal temperature asphalt mixture

Abstract

A forced mixer for normal temperature asphalt mixture. Current asphalt mixture mixers all have stirring arms installed in the mixing drum. The stirring arms are bottom stirring arms. After long-term operation, a large amount of asphalt will stick to the side, making it difficult to clean. At the same time, the stirring arms do not stir thoroughly, and there will be jamming. The present invention comprises: a mixer bracket (1) and a cylindrical mixing drum (4) fixed to the mixer bracket, a lower reduction motor (5) fixed to the mixer bracket, the output shaft of the lower reduction motor passes through the center of the cylindrical mixing drum and is fixed to the stirring arm (2) at the bottom of the drum, an upper reduction motor (14) is fixed to the upper part of the mixer bracket, and the output shaft of the upper reduction motor is fixed to the side wall stirring arm (3). The present invention is used for a forced mixer for normal temperature asphalt mixture.

Description

Technical field:

[0002] The invention relates to a special forced mixer for normal temperature asphalt mixture. Background technology:

[0004] Current asphalt mixers all have stirring arms installed in the mixing drum. The stirring arms are bottom stirring arms. After working for a long time, a large amount of asphalt will stick to the sides, making cleaning difficult. At the same time, the stirring arms do not stir thoroughly, and jamming may occur. Summary of the invention:

[0006] The purpose of the present invention is to provide a special forced mixer for asphalt mixture at room temperature.

[0007] The above purpose is achieved through the following technical solutions:

[0008] A forced mixer for normal temperature asphalt mixture, comprising: a mixer support and a cylindrical mixing drum fixed to the mixer support, characterized in that: a lower reduction motor is fixed to the mixer support, the output shaft of the lower reduction motor passes through the center of the cylindrical mixing drum and is fixed to the mixing arm at the bottom of the drum; an upper reduction motor is fixed to the upper part of the mixer support, the output shaft of the upper reduction motor is fixed to the side wall mixing arm;

[0009] The bottom stirring arm of the cylinder includes a group of bottom non-contact support arms and a bottom contact support arm, the bottom of the bottom non-contact support arm is fixed with a bottom non-contact scraper, and the bottom contact support arm is fixed with a bottom contact scraper;

[0010] The side wall stirring arm includes a group of side non-contact support arms and a side contact support arm. The bottom side of the side non-contact support arm is fixed with a side non-contact scraper, and the bottom side of the side contact support arm is fixed with a side contact scraper.

[0011] The special forced mixer for normal temperature asphalt mixture has an L-shaped bottom contact scraper.

[0012] The special forced mixer for normal temperature asphalt mixture, the bottom contact connecting arm and the side contact connecting arm both include a first connecting arm and a second connecting arm, a sleeve is fixed on the first connecting arm, a spring is arranged in the sleeve and is connected to the second connecting arm.

[0013] In the special forced mixer for normal temperature asphalt mixture, the upper part of the output shaft of the lower reduction motor is connected to the lower part of the output shaft of the upper reduction motor through a flange bearing seat.

[0014] The special forced mixer for normal temperature asphalt mixture has three bottom non-contact support arms.

[0015] The special forced mixer for normal temperature asphalt mixture has three side non-contact support arms.

[0016] The special forced mixer for normal temperature asphalt mixture, the bottom non-contact scraper forms an angle of 45-60 degrees with the horizontal plane.

[0017] In the special forced mixer for normal temperature asphalt mixture, the side non-contact scraper forms an angle of 45-60 degrees with the vertical plane.

[0018] Beneficial effects:

[0019] 1. The present invention provides a side wall stirring arm and a bottom stirring arm, which can stir the bottom and side wall of the cylinder at the same time, thereby improving the stirring effect and preventing the material from settling on the side wall and preventing the occurrence of compaction.

[0020] 2. The present invention is provided with a combination of a non-contact stirring arm and a contact support arm. The non-contact support arm can perform preliminary stirring of the material, and the contact support arm can contact the inside of the cylindrical mixing tank for further stirring, thereby improving the stirring and scraping effects.

[0021] 3. The bottom non-contact scraper of the present invention forms an angle of 45-60° with the horizontal plane, the side non-contact scraper forms an angle of 45-60° with the vertical plane, the bottom stirring arm of the tank rotates clockwise for stirring, and the side wall stirring arm rotates counterclockwise for stirring. The opposite stirring directions of the two can improve the stirring effect and ensure thorough scraping.

[0022] 4. The present invention is provided with a contact type support arm, which can bounce the second connecting arm when encountering a hard point, thereby preventing the hard point from hindering stirring and ensuring smooth stirring. Description of the drawings:

[0024] Attachment Figure 1 It is a structural schematic diagram of the present invention;

[0025] Attachment Figure 2 It is a structural diagram of the stirring arm at the bottom of the cylinder;

[0026] Attachment Figure 3 It is a structural diagram of the side wall stirring arm;

[0027] Attachment Figure 4 It is a structural diagram of the side contact type support arm;

[0028] In the figure: 1. Mixer bracket; 2. Bottom stirring arm; 3. Side wall stirring arm; 4. Drum mixing tank; 5. Lower reduction motor; 6. Bottom non-contact support arm; 7. Bottom contact support arm; 8. Bottom non-contact scraper; 9. Bottom contact scraper; 10. Side contact support arm; 11. Side non-contact support arm; 12. Side non-contact scraper; 13. Side contact scraper; 14. Upper reduction motor; 15. First connecting arm; 16. Compression spring; 17. Sleeve; 18. Second connecting arm; 19. Flange bearing seat. Specific implementation method:

[0030] Example 1:

[0031] A forced mixer for normal temperature asphalt mixture, comprising: a mixer support 1 and a cylindrical mixing drum 4 fixed to the mixer support; a lower reduction motor 5 fixed to the mixer support; the output shaft of the lower reduction motor passes through the center of the cylindrical mixing drum and is fixed to the mixing arm 2 at the bottom of the drum; an upper reduction motor 14 is fixed to the upper part of the mixer support; the output shaft of the upper reduction motor is fixed to the side wall mixing arm 3;

[0032] The bottom stirring arm includes a group of bottom non-contact support arms 6 and a bottom contact support arm 7. The bottom of the bottom non-contact support arm is fixed with a bottom non-contact scraper 8, and the bottom contact support arm is fixed with a bottom contact scraper 9. The bottom stirring arm stirs the bottom of the cylinder. The bottom contact scraper is L-shaped. The length of the horizontal part of the scraper is equal to the width of the internal stirring area of ​​the cylindrical mixing cylinder. The length of the vertical part of the scraper is equal to the height of the cylindrical mixing cylinder. The inner wall and bottom of the inner ring of the cylindrical mixing cylinder can be scraped in contact. There are three bottom non-contact scrapers, and the sum of their lengths is the width of the internal stirring area of ​​the cylindrical mixing cylinder, which can ensure comprehensive scraping without dead angles.

[0033] The side wall stirring arm includes a group of side non-contact support arms 11 and a side contact support arm 10. The side non-contact scraper 12 is fixed on the bottom side of the side non-contact support arm, and the side contact scraper 13 is fixed on the bottom side of the side contact support arm. The side wall stirring arm stirs the side wall. The length of the side contact support arm is equal to the height of the cylindrical mixing tank filled with material, and the inner wall of the outer ring of the cylindrical mixing tank can be scraped. There are three side non-contact scrapers, and the sum of the three lengths is the height of the cylindrical mixing tank filled with material, which can ensure comprehensive scraping without dead angles.

[0034] Example 2:

[0035] According to the forced mixer for normal temperature asphalt mixture described in Example 1, the bottom contact scraper is L-shaped.

[0036] Example 3:

[0037] According to the forced mixer for normal temperature asphalt mixture described in Example 1 or 2, the bottom contact connecting arm and the side contact connecting arm both include a first connecting arm 15 and a second connecting arm 18, a sleeve 17 is fixed on the first connecting arm, a spring 16 is provided in the sleeve and is connected to the second connecting arm.

[0038] Example 4:

[0039] According to the forced mixer for normal temperature asphalt mixture described in Example 1, 2 or 3, the upper part of the output shaft of the lower reduction motor is connected to the lower part of the output shaft of the upper reduction motor through a flange bearing seat 19. The output shaft of the lower reduction motor is fixed to the inside of the bearing of the flange bearing seat, and the output shaft of the upper reduction motor is fixed to the outside of the bearing of the flange bearing seat, so that the two can rotate concentrically.

[0040] Example 5:

[0041] According to the special forced mixer for normal temperature asphalt mixture described in Example 1, 2, 3 or 4, the number of the bottom non-contact support arms is 3.

[0042] Example 6:

[0043] According to the special forced mixer for normal temperature asphalt mixture described in Example 1, 2, 3, 4 or 5, the number of the side non-contact support arms is 3.

[0044] Example 7:

[0045] According to the special forced mixer for normal temperature asphalt mixture described in Example 1 or 2 or 3 or 4 or 5 or 6, the bottom non-contact scraper forms an angle of 45-60° with the horizontal plane, and the rotation direction of the stirring arm at the bottom of the cylinder is clockwise, which can ensure forward scraping and ensure the scraping effect.

[0046] Example 8:

[0047] According to the special forced mixer for normal temperature asphalt mixture described in Example 1 or 2 or 3 or 4 or 5 or 6 or 7, the side non-contact scraper forms an angle of 45-60° with the vertical plane, and the rotation direction of the side wall stirring arm is counterclockwise, which can ensure forward scraping and ensure the scraping effect.

Claims

1. A special forced mixer for normal temperature asphalt mixture, comprising: The mixer bracket and the cylindrical mixing tank fixed on the mixer bracket are characterized in that: the mixer bracket is fixed with a lower reduction motor, the output shaft of the lower reduction motor passes through the center of the cylindrical mixing tank and is fixed to the mixing arm at the bottom of the tank, the upper reduction motor is fixed to the upper part of the mixer bracket, and the output shaft of the upper reduction motor is fixed to the side wall mixing arm; The bottom stirring arm includes a group of bottom non-contact support arms and a bottom contact support arm. The bottom of the bottom non-contact support arm is fixed with a bottom non-contact scraper, and the top of the bottom contact support arm is fixed with a bottom contact scraper. The side wall stirring arm includes a group of side non-contact support arms and a side contact support arm. The side non-contact scraper is fixed to the bottom side of the side non-contact support arm, and the side contact scraper is fixed to the bottom side of the side contact arm. The bottom stirring arm rotates clockwise for stirring, and the side wall stirring arm rotates counterclockwise for stirring, and the two stirring directions are opposite. The bottom non-contact scraper forms an angle of 45-60° with the horizontal plane, and the side non-contact scraper forms an angle of 45-60° with the vertical plane.

2. The special forced mixer for normal temperature asphalt mixture according to claim 1, characterized in that: The bottom contact scraper is L-shaped; the bottom contact support arm and the side contact support arm both include a first connecting arm and a second connecting arm, a sleeve is fixed on the first connecting arm, a spring is arranged in the sleeve and is connected to the second connecting arm; the upper part of the output shaft of the lower reduction motor and the lower part of the output shaft of the upper reduction motor are connected through a flange bearing seat; the number of the bottom non-contact support arms is 3; the number of the side non-contact support arms is 3.

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