Cleaning mechanism for discharging pipe of concrete mixer

Abstract

The utility model discloses a concrete mixer blanking pipe cleaning mechanism which comprises a positioning cylinder, a bottom frame and a lifting cylinder, the bottom frame is located at the bottom end of the positioning cylinder, the lifting cylinder is located between the positioning cylinder and the bottom frame, the output end of the lifting cylinder is connected with the positioning cylinder, and the other end of the lifting cylinder is fixedly connected with the bottom frame. A movable shaft is movably connected into the positioning cylinder, a driven gear and an eccentric block are arranged on the outer surface of the movable shaft, a servo motor is arranged at the middle end of the positioning cylinder, the output end of the servo motor is connected with a brush cleaning roller, and the brush cleaning roller is movably connected with the positioning cylinder. According to the cleaning mechanism for the discharging pipe of the concrete mixer, through cooperative work of the stepping motor and the servo motor, automatic cleaning of the concrete discharging pipe is achieved, the working efficiency is improved, the labor burden is relieved, efficient cleaning is achieved, the combination of the brush cleaning roller and the eccentric block is adopted, solid concrete on the inner wall of the discharging pipe can be effectively cleaned, and the cleaning efficiency is improved. And the cleanliness of the concrete discharging pipe is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of down pipe cleaning, in particular to a cleaning mechanism for a down pipe of a concrete mixer. Background Art

[0002] Concrete mixer is a kind of equipment widely used in construction projects. The discharge pipe is an important component for conveying concrete. It is responsible for discharging the mixed concrete from the mixing tank and conveying it to the construction site.

[0003] However, in actual use, after the concrete is discharged, a layer of sticky solid concrete will remain on the inner wall of the discharge pipe. This is because part of the water evaporates during the mixing and transportation of the concrete, causing some components in the concrete to form a bonding layer on the inner wall of the pipe. This bonding layer will gradually thicken during long-term use, causing the discharge pipe to be blocked. The blockage of the discharge pipe will not only affect the concrete transportation efficiency, but also prevent the concrete from being discharged normally, causing great inconvenience to the construction.

[0004] Therefore, a cleaning mechanism for a concrete mixer discharge pipe is needed to solve the above problems. Utility Model Content

[0005] The utility model aims to provide a cleaning mechanism for a concrete mixer feed pipe to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cleaning mechanism for a discharge pipe of a concrete mixer, comprising a positioning cylinder, a base frame and a lifting cylinder, the base frame is located at the bottom end of the positioning cylinder, the lifting cylinder is located between the positioning cylinder and the base frame, the output end of the lifting cylinder is connected to the positioning cylinder, and the other end of the lifting cylinder is fixedly connected to the base frame, a movable shaft is movably connected inside the positioning cylinder, and the outer surface of the movable shaft is respectively provided with a driven gear and an eccentric block, a servo motor is provided at the middle end of the positioning cylinder, a brush cleaning roller is connected to the output end of the servo motor, and the brush cleaning roller is movably connected to the positioning cylinder.

[0007] As a preferred technical solution of the present invention, a transmission box is provided on the outer surface of one end of the positioning cylinder, a stepper motor is installed on the top of the transmission box, and a driving gear is connected to the output end of the stepper motor.

[0008] As a preferred technical solution of the present invention, a gear ring is movably connected to the inner surface of the positioning cylinder, and the gear ring is meshingly connected to the driving gear.

[0009] As a preferred technical solution of the present invention, a half gear set is distributed in an annular manner on the inner surface of the gear ring, and the half gear set is meshingly connected with the driven gear.

[0010] As a preferred technical solution of the present invention, a torsion spring is provided between the movable shaft and the positioning cylinder, the torsion spring and the movable shaft are movably connected, and the movable shaft and the eccentric block are fixedly connected.

[0011] Compared with the prior art, the utility model has the following beneficial effects: the cleaning mechanism of the concrete mixer feed pipe:

[0012] Automatic cleaning: Through the coordinated work of the stepper motor and the servo motor, the automatic cleaning of the concrete discharge pipe is realized, which improves work efficiency and reduces the manual burden. Efficient cleaning: The combination of the brush cleaning roller and the eccentric block can effectively clean the solid concrete on the inner wall of the discharge pipe, ensure the cleanliness of the concrete discharge pipe, and improve the quality of the concrete. Safety and environmental protection: Mechanical cleaning avoids the environmental pollution and harm to human health that may be caused by chemical cleaning methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall internal front view structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the overall top view structure of the utility model;

[0015] Figure 3 It is a schematic diagram of the cross-sectional structure of the half gear set and the driven gear of the utility model from a top view;

[0016] Figure 4 This is a schematic diagram of the internal front view structure of the positioning tube of the utility model.

[0017] In the figure: 1. positioning cylinder; 2. base frame; 3. lifting cylinder; 4. transmission box; 5. stepping motor; 6. driving gear; 7. ring gear; 8. eccentric block; 9. movable shaft; 10. half gear set; 11. brush cleaning roller; 12. servo motor; 13. driven gear; 14. torsion spring. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-4The utility model provides a technical solution: a cleaning mechanism for a discharge pipe of a concrete mixer, comprising a positioning cylinder 1, a base frame 2 and a lifting cylinder 3, the base frame 2 is located at the bottom of the positioning cylinder 1, the lifting cylinder 3 is located between the positioning cylinder 1 and the base frame 2, the output end of the lifting cylinder 3 is connected to the positioning cylinder 1, and the other end of the lifting cylinder 3 is fixedly connected to the base frame 2, a movable shaft 9 is movably connected inside the positioning cylinder 1, and a driven gear 13 and an eccentric block 8 are respectively provided on the outer surface of the movable shaft 9, a servo motor 12 is provided at the middle end of the positioning cylinder 1, and a brush cleaning roller 11 is connected to the output end of the servo motor 12, and the brush cleaning roller 11 is movably connected to the positioning cylinder 1.

[0020] A transmission box 4 is provided on the outer surface of one end of the positioning cylinder 1, and a stepper motor 5 is installed on the top of the transmission box 4. The output end of the stepper motor 5 is connected to a driving gear 6. The stepper motor 5 has a large torque force, which drives the driving gear 6 at the output end to rotate, ensuring normal transmission between the ring gear 7 and the driving gear 6.

[0021] The inner surface of the positioning cylinder 1 is movably connected with a gear ring 7, which is meshed with the driving gear 6. The gear ring 7 has internal or external teeth. The upper and lower ends of the gear ring 7 are connected to the positioning cylinder 1 at the parts with the same curvature. The gear ring 7 can slide along the inner surface of the positioning cylinder 1.

[0022] A half gear set 10 is distributed in an annular shape on the inner surface of the gear ring 7. The half gear set 10 is meshed with the driven gear 13. The half gear set 10 is composed of multiple tooth blocks and has the same number of teeth spacing as the driven gear 13. On this basis, the half gear set 10 is distributed in an annular shape on the inner surface of the gear ring 7. When the gear ring 7 and the driven gear 13 are separated and no longer meshed with each other, the driven gear 13 is reset under the energized elastic force of the torsion spring 14.

[0023] A torsion spring 14 is provided between the movable shaft 9 and the positioning cylinder 1. The torsion spring 14 and the movable shaft 9 are movably connected. The movable shaft 9 and the eccentric block 8 are fixedly connected. The eccentric block 8 rotates rapidly under the charged elastic force of the torsion spring 14. The elastic force generated by the torsion spring 14 is used to make the eccentric block 8 knock on the concrete discharge pipe, so that the solid concrete on the inner wall of the discharge pipe is separated under vibration, so as to achieve the cleaning effect.

[0024] Working principle: first, the center end of the positioning cylinder 1 is aligned with the center end of the concrete discharge pipe, and the lifting cylinder 3 is started to adjust the height of the positioning cylinder 1, and then the stepper motor 5 and the servo motor 12 are started. The stepper motor 5 drives the driving gear 6 to mesh with the ring gear 7 for transmission, and the ring gear 7 is meshed with the driven gear 13 through the half gear set 10. The driven gear 13 rotates synchronously with the movable shaft 9 to charge the movable shaft 9. When the half gear set 10 is separated from the driven gear 13, the charging elastic force of the torsion spring 14 resets the movable shaft 9 and the eccentric block 8. When resetting, the eccentric block 8 knocks on the discharge pipe. Continuous knocking can cause the concrete in the discharge pipe to fall off, and the brush cleaning roller 11 rolls on the inner wall of the discharge pipe, which can clean the concrete raw materials that have completely fallen off the inner wall, thereby ensuring the cleanliness of the concrete discharge pipe.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cleaning mechanism for a concrete mixer feed pipe, characterized in that: The invention comprises a positioning cylinder (1), a base frame (2) and a lifting cylinder (3), wherein the base frame (2) is located at the bottom end of the positioning cylinder (1), the lifting cylinder (3) is located between the positioning cylinder (1) and the base frame (2), the output end of the lifting cylinder (3) is connected to the positioning cylinder (1), and the other end of the lifting cylinder (3) is fixedly connected to the base frame (2), a movable shaft (9) is movably connected inside the positioning cylinder (1), and a driven gear (13) and an eccentric block (8) are respectively arranged on the outer surface of the movable shaft (9), a servo motor (12) is arranged at the middle end of the positioning cylinder (1), and a brush cleaning roller (11) is connected to the output end of the servo motor (12), and the brush cleaning roller (11) is movably connected to the positioning cylinder (1).

2. The cleaning mechanism for the discharge pipe of a concrete mixer according to claim 1, characterized in that: A transmission box (4) is provided on the outer surface of one end of the positioning cylinder (1), a stepping motor (5) is installed on the top of the transmission box (4), and a driving gear (6) is connected to the output end of the stepping motor (5).

3. The cleaning mechanism for the discharge pipe of a concrete mixer according to claim 1, characterized in that: A gear ring (7) is movably connected to the inner surface of the positioning cylinder (1), and the gear ring (7) is meshingly connected to the driving gear (6).

4. The cleaning mechanism for the discharge pipe of a concrete mixer according to claim 3 is characterized in that: A half gear set (10) is distributed in an annular shape on the inner surface of the gear ring (7), and the half gear set (10) is meshingly connected with the driven gear (13).

5. The cleaning mechanism for the discharge pipe of a concrete mixer according to claim 1, characterized in that: A torsion spring (14) is provided between the movable shaft (9) and the positioning cylinder (1); the torsion spring (14) and the movable shaft (9) are movably connected; and the movable shaft (9) and the eccentric block (8) are fixedly connected.

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