A prefabricated concrete mixer impeller with protective function

Abstract

This utility model belongs to the technical field of concrete mixers, and relates to a prefabricated concrete mixer impeller with protective function. It includes a mixing arm and mixing blades installed at the top of the mixing arm. Its key feature is that it also includes a protective sleeve fitted onto the mixing arm. This utility model has a scientific and reasonable design, with advantages such as long service life, convenient assembly, reduced equipment maintenance costs, and ease of implementation. It is a highly innovative prefabricated concrete mixer impeller with protective function.

Description

Technical Field

[0001] This utility model belongs to the technical field of concrete mixers, and relates to a mixer impeller, specifically a prefabricated concrete mixer impeller with protective function. Background Technology

[0002] A forced-action concrete mixer is a type of equipment primarily used for mixing concrete, mortar, and other building materials. The main structural component responsible for mixing is the mixing paddle, which consists of a mixing arm and mixing blades. The mixing shaft drives the mixing arm, which houses the mixing blades, to rotate, achieving thorough mixing of the materials and ensuring the quality and uniformity of the concrete. This type of mixer is widely used on various construction sites, especially in situations requiring large-scale concrete production. It is suitable for various large, medium, and small precast component factories, as well as industrial and civil construction projects such as highways, bridges, water conservancy projects, and docks.

[0003] The mixing arm is a crucial component of a concrete mixer's mixing blades. Its primary function is to ensure the uniform mixing of all concrete components, thereby improving the quality and strength of the concrete. The design and manufacturing quality of the mixing arm directly impacts the overall efficiency of the concrete batching plant and the final performance of the concrete product.

[0004] Because conventional mixers lack protective structures, the mixing arms wear out quickly due to collisions with sand and gravel during use. To prevent breakage and disruption of mixing operations, the mixing arms need to be replaced periodically, especially during large-scale construction projects, which increases equipment maintenance costs. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of the prior art and provide a prefabricated concrete mixer impeller with protective functions that has a long service life, is easy to assemble, reduces equipment maintenance costs, and is easy to implement.

[0006] The technical problem solved by this utility model is achieved through the following technical solution:

[0007] A prefabricated concrete mixer impeller with protective function includes a mixing arm and mixing blades installed at the top of the mixing arm, characterized in that: it also includes a protective sleeve, which is fitted onto the mixing arm.

[0008] Moreover, the protective sleeve has a structure with an avoidance notch on one side of the upper end, which is adapted to the protrusion on the stirring blade.

[0009] Furthermore, the stirring arm has an elliptical cross-section and a trapezoidal longitudinal section, and the protective sleeve is designed to fit the shape of the stirring arm.

[0010] Furthermore, the protective sleeve includes a first cylindrical plate and a second cylindrical plate. One end of the first cylindrical plate and the second cylindrical plate are rotatably connected by a hinge. At the other end of the first cylindrical plate, there are spaced-apart locking grooves. At the other end of the second cylindrical plate, there are spaced-apart locking protrusions. Vertical through holes are provided on the groove wall of the locking groove and on the locking protrusion. After the locking groove and the locking protrusion are fitted together, they are connected by the cooperation of bolts and nuts.

[0011] Furthermore, it also includes spacers, with spacers provided between the bolt nut and the protective sleeve, and between the nut and the protective sleeve.

[0012] Furthermore, several rings of support platforms are evenly distributed on the stirring arm, and limiting platforms that overlap the support platforms are provided on the inner walls of the first and second cylindrical plates.

[0013] The advantages and positive effects of this utility model are:

[0014] 1. The prefabricated concrete mixer impeller with protective function has a protective sleeve on the outside of the mixing arm. This protective sleeve can reduce the wear of the mixing arm, extend the replacement cycle of the mixing arm, and shorten the downtime of the mixer for maintenance.

[0015] 2. The prefabricated concrete mixer blade with protective function has a two-part protective sleeve designed with one end connected by a hinge and the other end connected by bolts and nuts, which facilitates the disassembly of the protective sleeve on the mixing arm.

[0016] 3. The protective sleeve of this prefabricated concrete mixer has a support platform and a limiting platform, which can limit the downward movement of the protective sleeve on the mixing arm. The upper end of the protective sleeve is limited by the mixing blades, thereby limiting the protective sleeve on the mixing arm and preventing it from moving up and down during operation and causing damage to the mixing blades.

[0017] 4. This utility model has a scientific and reasonable design, and has the advantages of long service life, convenient assembly, reduced equipment maintenance costs, and easy implementation. It is a highly innovative prefabricated concrete mixer mixing blade with protective function. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the first cylindrical piece of the protective sleeve of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the second cylindrical piece of the housing repair sleeve of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] 1-Stirring blade, 2-Protective sleeve, 3-Hinge, 4-Stirring arm, 5-Nut, 6-Bolt, 7-Protrusion, 8-Support platform, 9-Front auxiliary sliding sleeve, 10-Operating rod connecting seat limiting assembly, 11-Limiting platform, 12-Mounting groove, 13-Perforation, 14-Second cylinder, 15-Second clearance notch, 16-Mounting protrusion. Detailed Implementation

[0023] The embodiments of this utility model will be further described in detail below with reference to the accompanying drawings:

[0024] An assembly concrete mixer impeller with protective function includes a mixing arm 4 and a mixing blade 1 installed at the top of the mixing arm. Its innovation lies in the fact that it also includes a protective sleeve 2, which is fitted on the mixing arm. The protective sleeve is made of cast steel.

[0025] The protective sleeve has a structure with an avoidance notch on one side of the upper end, which is adapted to the protrusion 7 on the stirring blade.

[0026] The stirring arm has an elliptical cross-section and a trapezoidal longitudinal section, and the protective sleeve is designed to fit the shape of the stirring arm.

[0027] The protective sleeve has two implementation methods:

[0028] In the first embodiment, the protective sleeve is a cylindrical structure adapted to the shape of the stirring arm. The cylindrical structure is cast in one piece and has a wall thickness of 25mm.

[0029] During assembly, the stirring blades on the stirring arm need to be removed first, and then the protective sleeve is put on from top to bottom.

[0030] In the second embodiment, the protective sleeve is a two-part assembly structure, comprising a first cylindrical plate 10 and a second cylindrical plate 14. The first cylindrical plate has a first clearance notch 9 at its upper end on one side, and a locking groove 12 is longitudinally spaced on the end face of the clearance notch. A through hole 13 is provided on the groove wall of the locking groove. Hinge blades are welded at intervals on the other end face of the first cylindrical plate. The second cylindrical plate has a second clearance notch 15 at its upper end on one side, and a locking protrusion 16 is longitudinally spaced on the end face of the clearance notch. A through hole is provided on the locking protrusion. Another hinge blade is welded at intervals on the other end face of the second cylindrical plate.

[0031] The first and second cylindrical plates are rotatably connected at one end by a hinge 3. After the mounting groove and mounting protrusion are engaged, the connection is achieved by the cooperation of bolt 6 and nut 5.

[0032] In order to adapt to the structure of the inclined outer wall of the protective sleeve, this utility model also includes a pad, which is provided between the bolt nut and the protective sleeve and between the nut and the protective sleeve.

[0033] In this embodiment, to avoid damage to the stirring blades caused by the up-and-down movement of the protective sleeve, the present invention also designs a limiting structure, which includes a support platform 8 and a limiting platform 11 placed on the upper part of the support platform. That is, several rings of support platforms are evenly distributed on the stirring arm, and limiting platforms that overlap the support platforms are provided on the inner walls of the first and second cylindrical plates.

[0034] The protective sleeve can protect the mixing arm during the concrete mixing process.

[0035] The protective sleeve structure of the mixing arm of this utility model is assembled, easy to install and disassemble, and can be used in the mixer of the mixing plant with large volume of concrete and high mixing intensity.

[0036] The prefabricated mixer arm protective sleeve structure of this utility model has good performance, which can effectively extend the service life of the mixer arm, shorten maintenance time, and reduce maintenance costs.

[0037] Although embodiments and drawings of the present invention have been disclosed for illustrative purposes, those skilled in the art will understand that various substitutions, variations and modifications are possible without departing from the spirit and scope of the present invention and the appended claims. Therefore, the scope of the present invention is not limited to the contents disclosed in the embodiments and drawings.

Claims

1. A prefabricated concrete mixer impeller with protective function, comprising a mixing arm and mixing blades installed at the top of the mixing arm, characterized in that: It also includes a protective sleeve, which is fitted onto the stirring arm; The protective sleeve includes a first cylindrical plate and a second cylindrical plate. One end of the first cylindrical plate and the second cylindrical plate are rotatably connected by a hinge. At the other end of the first cylindrical plate, there are spaced-apart locking grooves. At the other end of the second cylindrical plate, there are spaced-apart locking protrusions. Vertical through holes are provided on the groove wall of the locking groove and on the locking protrusion. After the locking groove and the locking protrusion are fitted together, they are connected by the cooperation of bolts and nuts.

2. The prefabricated concrete mixer impeller with protective function according to claim 1, characterized in that: The protective sleeve has a structure with an avoidance notch on one side of the upper end, which is adapted to the protrusion on the stirring blade.

3. The prefabricated concrete mixer impeller with protective function according to claim 1, characterized in that: The stirring arm has an elliptical cross-section and a trapezoidal longitudinal section, and the protective sleeve is designed to fit the shape of the stirring arm.

4. The prefabricated concrete mixer impeller with protective function according to claim 1, characterized in that: It also includes spacers, which are provided between the bolt nut and the protective sleeve, and between the nut and the protective sleeve.

5. The prefabricated concrete mixer impeller with protective function according to claim 1, characterized in that: Several rings of support platforms are evenly distributed on the stirring arm, and limiting platforms that overlap the support platforms are provided on the inner walls of the first and second cylindrical plates.

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