Limiting mechanism of concrete mixer

Abstract

The utility model discloses a limiting mechanism of a concrete mixer, which relates to the field of concrete mixing and comprises a mixture containing box, the mixture containing box is used for being mounted and connected on the outer wall of an inlet of a mixing bin of the mixer, and a limiting mechanism for limiting falling of a mixture is mounted at an outlet at the bottom end of the mixture containing box; the limiting mechanism comprises a first movable limiting baffle and a second movable limiting baffle, and the first movable limiting baffle and the second movable limiting baffle can be arranged in a relatively movable mode and used for opening and closing an outlet in the bottom end of the mixture containing box and conducting limiting control over falling of the mixture. The falling amount of the mixture in the mixture containing box can be controlled through the limiting mechanism, so that it is ensured that the mixture falling into the stirring bin of the stirring machine is proper in amount and can be fully stirred, the stirring time of the mixture is shortened, and the quality of stirred concrete is ensured.

Description

Technical Field

[0001] The utility model relates to the field of concrete mixing, in particular to a limiting mechanism for a concrete mixer. Background Art

[0002] Concrete, abbreviated as "concrete", is a general term for engineering composite materials that are cemented into a whole by gel materials. The term concrete usually refers to cement as a cementitious material, sand and stone as aggregates, and water (which may contain admixtures and admixtures) in a certain proportion, and then mixed to obtain cement concrete, also known as ordinary concrete, which is widely used in civil engineering.

[0003] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to make concrete mixture. It is mainly composed of a mixing drum, a feeding and unloading mechanism, a water supply system, a prime mover, a transmission mechanism, a frame and a supporting device. According to the working nature, it can be divided into intermittent (batch) and continuous types; according to the mixing principle, it can be divided into self-falling type and forced type; according to the installation method, it can be divided into fixed type and mobile type; according to the discharging method, it can be divided into tilting type and non-tilting type; according to the mixing drum structure, it can be divided into pear type, drum type, double cone type, disc vertical shaft type and circular groove horizontal shaft type.

[0004] Many existing concrete mixers directly pour the mixed materials into the mixing bin of the mixer through the loader when mixing the mixed materials. This method of directly pouring the mixed materials into the mixing bin not only increases the mixing time, but also fails to mix the mixed materials evenly, resulting in the mixed concrete not meeting the design requirements for workability and slump. Utility Model Content

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A limiting mechanism for a concrete mixer comprises a mixture container, the mixture container is used to be installed and connected to the outer wall of the mixing bin inlet of the mixer, and the outlet at the bottom end of the mixture container is installed with a limiting mechanism for limiting the falling of the mixture;

[0007] The limiting mechanism includes a first movable limiting baffle and a second movable limiting baffle, which can be relatively movably arranged to realize opening and closing of the outlet at the bottom end of the mixed material containing box and limit control of the falling of the mixed material.

[0008] Preferably, first connecting side plates are respectively connected to both sides of the first movable limit baffle, and the other ends of the two first connecting side plates are rotatably connected to the side wall of the mixed material containing box via a first rotating shaft.

[0009] Preferably, second connecting side plates are respectively connected to both sides of the second movable limit baffle, and the other ends of the two second connecting side plates are rotatably connected to the side wall of the mixture storage box through a second rotating shaft;

[0010] The first rotating shaft and the second rotating shaft are connected through a transmission structure.

[0011] Preferably, two transmission structures are provided, and one is provided at each end of the first rotating shaft;

[0012] Each transmission structure includes a first gear and a second gear;

[0013] The first gear is installed and connected to one end of the first rotating shaft, the first gear meshes with the second gear, and the second gear is installed and connected to the second rotating shaft.

[0014] Preferably, movable hydraulic cylinders for driving the first connecting side plates to move are respectively hinged on the two first connecting side plates, and the other ends of the movable hydraulic cylinders hinged to the first connecting side plates on the same side are hinged to the second connecting side plates on the same side.

[0015] Preferably, vibration motors are respectively arranged on both sides of the outlet at the bottom end of the mixture storage box;

[0016] The vibration motors are respectively installed and connected to the side wall at the bottom end of the mixture storage box through bolts, and the mixture in the mixture storage box is vibrated by controlling the vibration motors, and then falls from the outlet at the bottom end of the mixture storage box.

[0017] The beneficial effects of the present utility model are as follows: The purpose of the present utility model is to provide a limit mechanism for a concrete mixer, which is used to limit and control the falling of the mixture in the mixture storage box installed and connected to the outer wall of the inlet of the mixing bin of the mixer. Through this limit mechanism, the falling amount of the mixture in the mixture storage box can be controlled, so as to ensure that the mixture falling into the mixing bin of the mixer is appropriate and can be fully stirred, thereby reducing the mixing time of the mixture and ensuring the quality of the stirred concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall connection structure schematic diagram of a limit mechanism for a concrete mixer of the present utility model;

[0019] Figure 2 is a partial exploded schematic diagram of the overall connection structure of a limit mechanism for a concrete mixer of the present utility model;

[0020] Figure 3 is a schematic diagram of the structure of the mixture storage box of the overall structure of a limit mechanism for a concrete mixer of the present utility model;

[0021] Figure 4 Schematic diagram of the connection structure of a limit mechanism for a concrete mixer according to the present utility model;

[0022] In the figure, 1 - mixture storage box, 2 - first movable limit baffle, 3 - second movable limit baffle, 4 - movable hydraulic cylinder, 5 - vibration motor, 21 - first connecting side plate, 22 - first gear, 31 - second connecting side plate, 32 - second gear. Specific embodiments

[0023] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0024] As Figures 1 to 4 shown, a limit mechanism for a concrete mixer. This limit mechanism is used to limit and control the falling of the mixture in the mixture storage box 1 installed and connected to the outer wall of the inlet of the mixing chamber of the mixer. Through this limit mechanism, it is possible to control the falling amount of the mixture in the mixture storage box 1, so as to ensure that the mixture falling into the mixing chamber of the mixer is appropriate and can be fully stirred, thereby reducing the mixing time of the mixture and ensuring the quality of the stirred concrete. In the embodiment, the mixture storage box 1 is used to be installed and connected to the outer wall of the inlet of the mixing chamber of the mixer, and a limit mechanism for limiting the falling of the mixture is installed at the outlet at the bottom of the mixture storage box 1; through the provided limit mechanism, it is used to adjust and control the falling amount of the mixture in the mixture storage box 1. The specific structure can be designed as: the limit mechanism includes a first movable limit baffle 2 and a second movable limit baffle 3, and the first movable limit baffle 2 and the second movable limit baffle 3 are arranged to be relatively movable, so as to realize the opening and closing of the outlet at the bottom of the mixture storage box 1 and limit the falling of the mixture; and the first movable limit baffle 2 and the second movable limit baffle 3 on the same side are respectively hinged with a driving structure for driving the first movable limit baffle 2 and the second movable limit baffle 3 to limit the opening and closing of the outlet at the bottom of the mixture storage box 1. Through the provided driving structure, the first movable limit baffle 2 and the second movable limit baffle 3 are respectively driven to move, and the opening and closing of the outlet at the bottom of the mixture storage box 1 are limited, so as to achieve the purpose of adjusting and controlling the falling amount of the mixture in the mixture storage box 1.

[0025] Further, in the embodiment, first connecting side plates 21 are respectively connected to both sides of the first movable limit baffle 2, and the other ends of the two first connecting side plates 21 are rotatably connected to the side wall of the mixing material storage box 1 through a first rotating shaft; moreover, second connecting side plates 31 are respectively connected to both sides of the second movable limit baffle 3, and the other ends of the two second connecting side plates 31 are rotatably connected to the side wall of the mixing material storage box 1 through a second rotating shaft; the first rotating shaft and the second rotating shaft are connected and arranged through a transmission structure; when it is necessary to control the first movable limit baffle 2 and the second movable limit baffle 3 to open and close and limit the outlet at the bottom of the mixing material storage box 1, at this time, the "driving structure" is controlled to drive respectively through the first connecting side plate 21 and the second connecting side plate 31, the first movable limit baffle 2 connected to the first connecting side plate 21 moves and the second movable limit baffle 3 connected to the second connecting side plate 31 moves, so as to control and realize the relative movement of the first movable limit baffle 2 and the second movable limit baffle 3, and realize the opening and closing limit of the outlet at the bottom of the mixing material storage box 1.

[0026] Further, in the embodiment, the transmission structure for driving the first rotating shaft and the second rotating shaft to "rotate" is provided, and there are two such transmission structures, and one is respectively arranged at both ends of the first rotating shaft (second rotating shaft); the transmission structures both include a first gear 22 and a second gear 32; the first gear 22 is installed and connected to one end of the first rotating shaft, the first gear 22 meshes with the second gear 32, and the second gear 32 is installed and connected to the second rotating shaft; moreover, the first connecting side plate 21 and the second connecting side plate 31 on the same side are respectively hinged with a "driving structure", and the driving structure includes a movable hydraulic cylinder, and its specific implementation can be: movable hydraulic cylinders 4 for driving the first connecting side plate 21 to move are respectively hinged on the two first connecting side plates 21, and the other ends of the movable hydraulic cylinders 4 hinged to the first connecting side plates 21 on the same side are hinged to the second connecting side plates 31 on the same side. Also, in order to prevent the mixing material from causing "material blockage" at the outlet position at the bottom of the mixing material storage box 1, vibration motors 5 are respectively arranged on both sides of the outlet at the bottom of the mixing material storage box 1; the vibration motors 5 are respectively installed and connected to the bottom side wall of the mixing material storage box 1 through bolts, and the mixing material in the mixing material storage box 1 is vibrated at the outlet position by controlling the vibration motors 5, so that the mixing material can smoothly fall from the outlet at the bottom of the mixing material storage box 1.

[0027] Finally, through the additionally provided limiting mechanism, it is possible to control the falling amount of the mixing material in the mixing material storage box, so as to ensure that the mixing material falling into the mixing bin of the mixer is appropriate in amount and can be fully stirred, thereby reducing the mixing time of the mixing material and ensuring the quality of the stirred concrete.

[0028] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model; at the same time, any arbitrary combinations can be made among various different embodiments of the present utility model, as long as they do not violate the idea of the present utility model, and they shall also be regarded as the content disclosed by the present utility model.

Claims

1. A limiting mechanism for a concrete mixer, comprising a mixture container, the mixture container being used to be installed and connected to the outer wall of the mixing bin inlet of the mixer, and a limiting mechanism for limiting the falling of the mixture is installed at the outlet at the bottom end of the mixture container; It is characterized in that The limiting mechanism includes a first movable limiting baffle and a second movable limiting baffle, which can be relatively movably arranged to realize opening and closing of the outlet at the bottom end of the mixed material containing box and limit control of the falling of the mixed material.

2. A concrete mixer limiting mechanism according to claim 1, characterized in that: The first movable limit baffle is connected to first connecting side plates on both sides respectively, and the other ends of the two first connecting side plates are rotatably connected to the side wall of the mixed material containing box through a first rotating shaft.

3. A concrete mixer limiting mechanism according to claim 2, characterized in that: The two sides of the second movable limit baffle are respectively connected with second connecting side plates, and the other ends of the two second connecting side plates are rotatably connected to the side wall of the mixed material containing box through a second rotating shaft; The first rotating shaft and the second rotating shaft are arranged in transmission connection via a transmission structure.

4. A concrete mixer limiting mechanism according to claim 3, characterized in that: The transmission structure is provided with two, one at each end of the first rotating shaft; The transmission structure includes a first gear and a second gear; The first gear is installed and connected to one end of the first rotating shaft, the first gear is meshed with the second gear, and the second gear is installed and connected to the second rotating shaft.

5. A concrete mixer limiting mechanism according to claim 4, characterized in that: The two first connecting side plates are respectively hinged with movable hydraulic cylinders for driving the first connecting side plates to move, and the other end of the movable hydraulic cylinder hinged to the first connecting side plate on the same side is hinged to the second connecting side plate on the same side.

6. A concrete mixer limiting mechanism according to claim 1, characterized in that: Vibrating motors are respectively arranged on both sides of the outlet at the bottom end of the mixed material containing box; The vibration motors are respectively installed and connected to the bottom side walls of the mixed material container box through bolts. The mixed materials in the mixed material container box are vibrated by controlling the vibration motors, and then fall from the outlet at the bottom of the mixed material container box.

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