Conveying structure for concrete stirrer

Abstract

The utility model discloses a conveying structure for a concrete mixer, which comprises a mixing drum, the bottom of the mixing drum is rotatably connected with a discharge pipe, the bottom of the discharge pipe is rotatably connected with a conveying pipe, a central shaft is arranged in the discharge pipe, the outer side of the central shaft is fixedly connected with a mixing plate, and the top of the central shaft is fixedly connected with a scraper. A first motor is fixedly installed on one side of the conveying pipe, the output end of the first motor is fixedly connected with the driving gear, a second motor is fixedly installed on the side face of the conveying pipe, the output end of the second motor is fixedly connected with a rotating shaft, the outer side of the rotating shaft is fixedly connected with a limiting strip, and the conveying pipe abuts against the side face of the fixing plate. The discharging pipe drives the scraping plate to rotate to scrape and clean concrete attached to the inner wall of the stirring barrel, the stirring plate rotates to promote discharging of the concrete, the threaded rod is rotated to drive the rotating barrel and conveying slurry to move out from the interior of the conveying pipe, and therefore the inner wall of the conveying pipe and the surface of the conveying slurry can be cleaned conveniently.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixer technical field, concretely for a conveying structure for concrete mixer. BACKGROUND

[0002] Concrete mixer is the cement, gravel aggregate and water are mixed and are mixed into the concrete mixture mechanical. When the raw material of concrete is added to the mixing drum, the driving motor drives the stirring paddle to stir the concrete raw material to mix into concrete, and then is transported to the storage tank through the discharge pipe and the conveying pipe.

[0003] Chinese patent discloses "a conveying structure for concrete mixer", and the announcement number is CN210758474 U, the patent mixing drum, the bottom wall of the mixing drum is connected with the discharge pipe that communicates with the mixing drum, the patent motor drives the rotation of the discharge pipe, so that the tangential force that concrete receives promotes fluidity, in addition, the concrete is cleaned by the cleaning brush and the surface of the conveying paste are attached to clean.

[0004] However, the cleaning brush is located in the conveying pipe, the cleaning brush itself is difficult to clean, resulting in poor cleaning effect of the conveying paste surface and the inner wall of the conveying pipe, in addition, the effect of promoting the flow of concrete by the rotation of the discharge pipe is limited, and the concrete attached to the inner wall of the mixing drum is difficult to clean. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a conveying structure for concrete mixer to solve the problems in the above background.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a conveying structure for concrete mixer, including mixing drum, the bottom of the mixing drum is rotatably connected with the discharge pipe, the bottom of the discharge pipe is rotatably connected with the conveying pipe, the center shaft is arranged in the discharge pipe, the outer side of the center shaft is fixedly connected with the stirring plate, the top of the center shaft is fixedly connected with the scraper, the outer side of the discharge pipe is provided with the driven gear, one side of the conveying pipe is fixedly provided with motor one, the output end of motor one is fixedly connected with the driving gear, the side surface of the conveying pipe is fixedly provided with motor two, the output end of motor two is fixedly connected with the rotating shaft, the outer side of the rotating shaft is fixedly connected with the limiting strip, the conveying pipe and the fixed plate side surface abut, the fixed plate and the outer side of the threaded rod are rotatably connected, the side surface of the fixed plate is rotatably connected with the rotating plate, the rotating plate is fixedly welded with the rotating cylinder, the outer side of the rotating cylinder is fixedly connected with the conveying paste, and the outer side of the rotating cylinder is fixedly connected with the cleaning plate.

[0007] Preferably, the discharge pipe is rotatably connected with the pipe opening of the mixing drum and the conveying pipe respectively, the inner wall of the discharge pipe is fixedly connected with the side surface of the stirring plate, and the stirring plate is a spiral plate.

[0008] Preferably, the motor one is connected and fixed with the outside of the conveying pipe through the mounting bracket, and the output end of the motor one is connected and fixed with the driving gear through the shaft coupling, and the driving gear is meshed and connected with the driven gear.

[0009] Preferably, the rotating shaft is internally provided with a threaded hole, the rotating shaft is externally and threadedly connected with the threaded rod through the threaded hole, and one end of the threaded rod extends to the outside of the fixed plate and is fixedly connected with the hand wheel.

[0010] Preferably, the rotating cylinder is internally provided with a cylindrical groove, the threaded rod is sleeved in the cylindrical groove, and the rotating cylinder is slidingly matched with the rotating shaft and the limiting strip through the cylindrical groove.

[0011] Preferably, the rotating plate and the cleaning plate are respectively located at two ends of the rotating cylinder, and the rotating cylinder is rotationally connected with the side surface of the fixed plate through the rotating plate.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] The utility model discloses a motor one makes driving gear drive driven gear make the synchronous rotation of discharge pipe, and the synchronous rotation of discharge pipe makes the rotation of scraper, thereby scraping and cleaning the concrete attached to the inner wall of the stirring cylinder, and the rotation of the stirring plate driven by the discharge pipe promotes the discharge of concrete, avoids the situation that the discharge pipe is blocked due to the poor discharge in the discharge pipe, and reduces the difficulty of cleaning the inner wall of the stirring cylinder.

[0014] The utility model discloses a motor two make rotating shaft drive rotating cylinder and conveying pulp rotate, and the concrete of discharge pipe is transported through spiral conveying pulp, when needing to clean the inside of conveying pipe, manually rotating the hand wheel at one end of threaded rod makes the threaded rod move to the outside in the threaded hole in the rotating shaft, thereby drive rotating cylinder and conveying pulp remove from the inside of conveying pipe, when rotating cylinder moves, scrape and clean the inside of conveying pipe through cleaning plate, thereby being convenient for cleaning the inner wall of conveying pipe and the surface of conveying pulp. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the whole structure schematic view of the utility model;

[0016] Figure 2 It is the whole internal structure section view of the utility model;

[0017] Figure 3 It is the inside structure section view of the discharge pipe of the utility model;

[0018] Figure 4 It is the rotating shaft structure schematic view of the utility model;

[0019] Figure 5 It is the inside section view of the rotating cylinder of the utility model.

[0020] Fig. 1, stirring drum; 2, discharge pipe; 3, conveying pipe; 4, central shaft; 5, stirring plate; 6, scraper; 7, driven gear; 8, motor one; 9, drive gear; 10, motor two; 11, rotating shaft; 12, limiting strip; 13, fixed plate; 14, threaded rod; 15, rotating plate; 16, rotating drum; 17, conveying pulp; 18, cleaning plate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0022] Please refer to Figures 1-5 The present application provides a technical solution: a conveying structure for a concrete mixer, comprising a stirring drum 1, a pipe opening at the bottom of the stirring drum 1 is rotationally connected with a discharge pipe 2, the bottom of the discharge pipe 2 is rotationally connected with a pipe opening at the top of a conveying pipe 3, a central shaft 4 is arranged inside the discharge pipe 2, the outer side of the central shaft 4 is welded and fixed with a stirring plate 5, the top of the central shaft 4 is welded and fixed with a scraper 6, the outer side of the discharge pipe 2 is welded and fixed with a driven gear 7, the outer side of the conveying pipe 3 is connected and fixed with a motor one 8 through a mounting bracket, the output end of the motor one 8 is welded and fixed with a drive gear 9, the side of the conveying pipe 3 is connected and fixed with a motor two 10 through a bolt, the output end of the motor two 10 is welded and fixed with a rotating shaft 11, the outer side of the rotating shaft 11 is welded and fixed with a limiting strip 12, the conveying pipe 3 abuts against the side of a fixed plate 13, the outer side of the fixed plate 13 is rotationally connected with a threaded rod 14, the side of the fixed plate 13 is rotationally connected with a rotating plate 15, the rotating plate 15 is welded and fixed with a rotating drum 16, the outer side of the rotating drum 16 is connected and fixed with a conveying pulp 17, the outer side of the rotating drum 16 is welded and fixed with a cleaning plate 18,

[0023] The discharge pipe 2 is rotationally connected with the pipe openings of the stirring drum 1 and the conveying pipe 3, respectively, the inner wall of the discharge pipe 2 is welded and fixed with the side of the stirring plate 5, the stirring plate 5 is a spiral plate, the discharge pipe 2 is rotated to drive the stirring plate 5 and the scraper 6 to rotate synchronously, the rotation of the spiral stirring plate 5 promotes the discharge of the concrete from the discharge pipe 2 to the inside of the conveying pipe 3, the scraper 6 is rotated to scrape off the concrete adhered to the inner wall of the stirring drum 1, the discharging effect of the stirring drum 1 is enhanced, and the discharging blockage is avoided,

[0024] The motor 8 is connected and fixed with the outer side of the conveying pipe 3 through the mounting plate, the output end of the motor 8 is connected and fixed with the driving gear 9 through the shaft coupling, the driving gear 9 is meshed and connected with the driven gear 7, the rotating shaft 11 is internally provided with a threaded hole, the rotating shaft 11 is externally threadedly connected with the threaded rod 14 through the threaded hole, one end of the threaded rod 14 extends to the outer side of the fixed plate 13 and is welded and fixed with the hand wheel, the threaded rod 14 can be moved from the threaded hole in the rotating shaft 11 by rotating the threaded rod 14, and the conveying slurry 17 is moved outward, the motor 2 10 has a self-locking effect, so that the rotating shaft 11 cannot rotate by itself, a cylindrical groove is further formed in the inner side of the rotating drum 16, a strip-shaped groove is formed in the inner wall of the cylindrical groove, the strip-shaped groove is slidably connected with the limiting strip 12, and the rotation of the rotating shaft 11 can drive the rotating drum 16 and the conveying slurry 17 to rotate synchronously,

[0025] The threaded rod 14 is sleeved in the cylindrical groove, the rotating drum 16 is slidably matched with the rotating shaft 11 and the limiting strip 12 through the cylindrical groove, the rotating plate 15 and the cleaning plate 18 are respectively located at two ends of the rotating drum 16, the rotating drum 16 is rotatably connected with the side surface of the fixed plate 13 through the rotating plate 15, when the motor 2 10 drives the rotating shaft 11 to rotate, the rotating drum 16 and the conveying slurry 17 are synchronously rotated through the limiting strip 12, the concrete is conveyed by the rotation of the conveying slurry 17, since the outer side of the threaded rod 14 is rotatably connected with the fixed plate 13 through the bearing sleeve, the rotating shaft 11 can synchronously drive the threaded rod 14 to rotate, so that the threaded rod 14 cannot rotate alone to cause the rotating drum 16 to deviate outward, the fixed plate 13 abuts against one end of the conveying pipe 3 through the sealing plate,

[0026] Working principle: in use, the motor 8 drives the driving gear 9 to drive the discharge pipe 2 and the driven gear 7 to rotate synchronously, further drives the central shaft 4 and the stirring plate 5 in the driven gear 7 to rotate synchronously, and drives the scraper 6 to rotate to scrape off the concrete attached to the inner wall of the stirring drum 1, the rotation of the spiral stirring plate 5 promotes the concrete to be discharged from the discharge pipe 2 to the inside of the conveying pipe 3, the motor 2 10 drives the rotating shaft 11 to rotate, under the cooperation of the limiting strip 12 and the strip-shaped groove in the inner wall of the rotating drum 16, the rotating shaft 11 and the rotating drum 16 are synchronously rotated, the concrete is conveyed by the rotation of the conveying slurry 17 and is discharged from the discharge port at the bottom of the conveying pipe 3, when it is necessary to clean the conveying pipe 3, the hand wheel at one end of the threaded rod 14 is manually rotated, so that the threaded rod 14 moves outward in the threaded hole of the rotating shaft 11, thereby driving the rotating drum 16 and the conveying slurry 17 to move outward, at the same time, the cleaning plate 18 is used to scrape off the concrete attached to the inner wall of the conveying pipe 3, until the rotating drum 16 and the conveying slurry 17 are moved to the outer side of the conveying pipe 3, so that the cleaning is facilitated and the cleaning effect is improved.

[0027] It is to be noted that, in the present document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0028] While the embodiments of the present application have been illustrated and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and alterations can be made therein without departing from the spirit and scope of the application, which is defined by the appended claims and their equivalents.

Claims

1. A conveying structure for a concrete mixer, comprising a mixing drum (1), characterized in that: The bottom of the mixing drum (1) is rotatably connected to the discharge pipe (2), and the bottom of the discharge pipe (2) is rotatably connected to the conveying pipe (3). A central shaft (4) is provided inside the discharge pipe (2), and the outside of the central shaft (4) is fixedly connected to the mixing plate (5). The top of the central shaft (4) is fixedly connected to the scraper (6). A driven gear (7) is provided on the outside of the discharge pipe (2). A motor (8) is fixedly installed on one side of the conveying pipe (3), and the output end of the motor (8) is fixedly connected to the drive gear (9). A motor is fixedly installed on the side of the conveying pipe (3). Second (10), the output end of the second motor (10) is fixedly connected to the rotating shaft (11), the outer side of the rotating shaft (11) is fixedly connected to the limiting strip (12), the conveying pipe (3) abuts against the side of the fixing plate (13), the fixing plate (13) is rotatably connected to the outer side of the threaded rod (14), the side of the fixing plate (13) is rotatably connected to the rotating plate (15), the rotating plate (15) is welded and fixed to the rotating drum (16), the outer side of the rotating drum (16) is connected and fixed to the conveying slurry (17), and the outer side of the rotating drum (16) is fixedly connected to the cleaning plate (18).

2. The conveying structure for a concrete mixer according to claim 1, characterized in that: The discharge pipe (2) is rotatably connected to the opening of the mixing drum (1) and the conveying pipe (3), respectively. The inner wall of the discharge pipe (2) is fixedly connected to the side of the mixing plate (5). The mixing plate (5) is a spiral plate.

3. The conveying structure for a concrete mixer according to claim 1, characterized in that: The motor (8) is fixed to the outside of the conveying pipe (3) via a mounting bracket. The output end of the motor (8) is fixed to the drive gear (9) via a coupling. The drive gear (9) meshes with the driven gear (7).

4. The conveying structure for a concrete mixer according to claim 1, characterized in that: The rotating shaft (11) has a threaded hole inside. The rotating shaft (11) is threaded to the outside of the threaded rod (14) through the threaded hole. One end of the threaded rod (14) extends to the outside of the fixed plate (13) and is fixedly connected to the handwheel.

5. A conveying structure for a concrete mixer according to claim 1, characterized in that: The rotating drum (16) has a cylindrical groove inside, and the threaded rod (14) is sleeved in the cylindrical groove. The rotating drum (16) slides with the rotating shaft (11) and the limiting strip (12) through the cylindrical groove.

6. A conveying structure for a concrete mixer according to claim 1, characterized in that: The rotating plate (15) and the cleaning plate (18) are located at both ends of the rotating cylinder (16), and the rotating cylinder (16) is rotatably connected to the side of the fixed plate (13) through the rotating plate (15).

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