Old asphalt regeneration stirrer

Abstract

The utility model relates to the technical field of stirrers, in particular to an old asphalt regeneration stirrer. Comprising a stirring bin, supporting legs and a discharging port, a rotating shaft is rotationally installed in an inner cavity of the stirring bin, first stirring rods are fixedly installed on the outer wall of the rotating shaft, a motor is fixedly installed on one side of the stirring bin, and two-way threaded rods are rotationally installed above the front face and the back of the stirring bin; a scraping plate with the same outline as the inner wall of the stirring bin is arranged between the two-way threaded rods, a plurality of second stirring rods are fixedly arranged on the side, close to the inner cavity of the stirring bin, of the scraping plate at equal angles, and the motor is in transmission connection with the rotating shaft and the two-way threaded rods through a belt and a belt pulley. Uniform stirring can be ensured, and no stirring dead angle exists.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mixer, concretely to an old asphalt recycling mixer. BACKGROUND

[0002] Asphalt recycling refers to recycling old asphalt after crushing, screening and mixing with regenerant and new asphalt material. Old asphalt will weaken the adhesion between asphalt and aggregate due to aging, causing road aggregate to fall off and gradually expand, affecting road use, so it is necessary to add regenerant or low-consistency asphalt to the aged asphalt for mixing to adjust the adhesion of the aged asphalt to improve the function of asphalt. During the mixing of regenerant or low-consistency asphalt with old asphalt, there is a certain distance between the stirring rod and the inner wall of the stirring bin, resulting in incomplete mixing.

[0003] Prior art discloses an asphalt mixture mixer with publication number CN221029401U, which includes a machine body, a scraper frame connected to the machine body, a discharge frame fixed to the right side of the machine body, a hydraulic cylinder a installed on the discharge frame, a moving frame installed on the hydraulic cylinder a, a sliding frame installed on the moving frame, a feeding shaft rotatably connected to the sliding frame, a hydraulic cylinder b rotatably connected to the discharge frame, a material door rotatably connected to the hydraulic cylinder b, a clamping frame connected to the machine body, a gear a rotatably connected to the clamping frame, a gear b meshed with the gear a, a bolt threaded with the gear b, a stirring shaft rotatably connected to the clamping frame, and a transmission shaft inserted into the stirring shaft.

[0004] The above device has a certain distance between the stirring rod and the inner wall of the stirring bin during use, resulting in incomplete mixing. During mixing, sand and gravel with large specific gravity are easily left at the bottom of the stirring bin, affecting the mixing effect. Utility model content

[0005] (I) Technical problem solved

[0006] To solve the above problems of the prior art, the utility model provides an old asphalt recycling mixer, which can ensure uniform mixing and has no dead corners.

[0007] (II) Technical scheme

[0008] To achieve the above purpose, the utility model adopts the following main technical scheme:

[0009] An old asphalt regeneration mixer, including a stirring bin, support legs and a discharge port, the stirring bin inner cavity is rotatably installed with a rotating shaft, the rotating shaft outer wall is fixedly installed with a first stirring rod, one side of the stirring bin is fixedly installed with a motor, the front and back of the stirring bin is rotatably installed with a bidirectional threaded rod, the bidirectional threaded rod is provided with a scraper with the same profile as the stirring bin inner wall, the scraper is fixedly provided with a plurality of second stirring rods at equal angles near one side of the stirring bin inner cavity, and the motor is drivingly connected with the rotating shaft and the bidirectional threaded rod through a belt and a belt pulley. The stirring is uniform and there is no stirring dead angle.

[0010] Preferably, the discharge port is provided with two, respectively located at the left and right ends of the stirring bin bottom.

[0011] Preferably, the stirring bin one side is fixedly installed with a fixed plate, and the motor bottom is fixedly connected with the fixed plate.

[0012] Preferably, the scraper is a U-shaped structure.

[0013] (Three) beneficial effects

[0014] The utility model provides a kind of old asphalt regeneration mixer.It has the following beneficial effects:

[0015] (1), scraper can be stirred with the sand and stone etc with greater specific gravity at the bottom of stirring bin inner cavity, the second stirring rod can be stirred and mixed at the gap between first stirring rod and stirring bin, to avoid the existence of stirring dead angle. DETAILED DESCRIPTION

[0016] Fig. 1 It is the structural diagram of the utility model;

[0017] Fig. 2 It is the sectional view of the utility model.

[0018] In the drawing: 1, stirring bin;2, support leg;3, discharge port;4, rotating shaft;5, first stirring rod;6, motor;7, bidirectional threaded rod;8, scraper;9, second stirring rod;10, fixed plate. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0020] As Figs. 1-2As shown, the old asphalt regenerating mixer of the embodiment comprises a stirring bin 1, supporting legs 2 and discharge ports 3. A rotating shaft 4 is rotatably installed in the inner cavity of the stirring bin 1. A first stirring rod 5 is fixedly installed on the outer wall of the rotating shaft 4. A motor 6 is fixedly installed on one side of the stirring bin 1. A bidirectional threaded rod 7 is rotatably installed on the front and back upper positions of the stirring bin 1. A scraper 8 with the same profile as the inner wall of the stirring bin 1 is arranged between the bidirectional threaded rods 7. The scraper 8 can scrape the materials at the bottom of the inner cavity of the stirring bin 1 and then turn them up for stirring. A plurality of second stirring rods 9 are fixedly arranged at equal angles near the inner cavity side of the stirring bin 1. The second stirring rods 9 can stir the gap between the first stirring rod 5 and the inner wall of the stirring bin 1 during reciprocating movement. The motor 6 is drivingly connected with the rotating shaft 4 and the bidirectional threaded rod 7 through belts and belt pulleys.

[0021] Further, the discharge ports 3 are arranged at the left and right ends of the bottom of the stirring bin 1.

[0022] Further, a fixed plate 10 is fixedly installed on one side of the stirring bin 1. The motor 6 is fixedly connected with the fixed plate 10.

[0023] Further, the scraper 8 has a U-shaped structure.

[0024] Working principle: The old asphalt, new aggregate and regenerating agent after crushing and screening are added to the stirring bin 1. When the motor 6 drives the rotating shaft 4 and the bidirectional threaded rod 7 to rotate, the rotating shaft 4 drives the first stirring rod 5 to stir. The bidirectional threaded rod 7 drives the scraper 8 to reciprocate along the length direction of the stirring bin 1. During the reciprocating movement, the scraper 8 can scrape the materials at the bottom of the inner cavity of the stirring bin 1 and turn them up. The turned-up materials are stirred and mixed by the second stirring rods 9. When discharging, the switch valves on the discharge ports 3 are opened. The reciprocating scraper 8 can continuously push the mixed asphalt to the discharge ports 3 for discharging.

Claims

1. An old asphalt regenerating mixer, comprising a mixing bin (1), supporting legs (2) and a discharge port (3), a rotating shaft (4) is rotatably installed in the inner cavity of the mixing bin (1), a first mixing rod (5) is fixedly installed on the outer wall of the rotating shaft (4), a motor (6) is fixedly installed on one side of the mixing bin (1), characterized in that: The bidirectional threaded rod (7) is arranged on the front and back of the stirring bin (1) and rotates, a scraper (8) with the same profile as the inner wall of the stirring bin (1) is arranged between the bidirectional threaded rods (7), a plurality of second stirring rods (9) are fixedly arranged at equal angles on the side of the inner cavity of the stirring bin (1) close to the scraper (8), and the motor (6) is in transmission connection with the rotating shaft (4) and the bidirectional threaded rod (7) through a belt and a belt pulley.

2. The old asphalt regenerating mixer according to claim 1, characterized in that: The discharge port (3) is provided with two, which are respectively located at the left and right ends of the bottom of the stirring bin (1).

3. The old asphalt regenerating mixer according to claim 1, characterized in that: The motor (6) is fixedly connected with the fixed plate (10) at the bottom.

4. The old asphalt regenerating mixer according to claim 1, characterized in that: The scraper (8) is a U-shaped structure.

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