Dry-type stirring transport vehicle
By designing an electric lifting mechanism and wear-resistant alloy steel stirring blades on the dry powder material transport vehicle, the problem of stratification and segregation of dry powder materials during transportation is solved, enabling in-transit stirring and rapid loading, and improving the flexibility and space utilization of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-03
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional dry powder material transport vehicles are prone to stratification and segregation during bumpy and vibrating processes, requiring secondary stirring. Furthermore, the rigid connection between the stirring shaft and the tank body cannot accommodate mixing drums of different sizes. Loading and unloading rely on crane assistance, making them inflexible in use and taking up a lot of space.
A dry mixing and transport vehicle was designed, which adopts an electric lifting mechanism and wear-resistant alloy steel mixing blades. The mixing shaft can be inserted into the mixing drum. It is equipped with a lifting belt and guide wheels to realize the lifting of the mixing shaft and the quick replacement of the mixing drum. The mixing blades are arranged in multiple layers and staggered to form a turbulent convection composite flow field.
It achieves in-process stirring to prevent material caking and segregation, making operation labor-saving and efficient. The mixing tank can be quickly changed to adapt to different specifications, reducing the need for crane assistance and improving operational flexibility and space utilization.
Smart Images
Figure CN224090097U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of material mixing and transportation equipment, specifically relating to a dry mixing and transportation vehicle. Background Technology
[0002] Dry powder materials such as cement and mineral powder are prone to segregation or caking due to bumps and vibrations during transportation, severely affecting their performance. Traditional transport vehicles have storage and transportation functions, but the materials need to be mixed again on-site, which is inefficient and makes it difficult to guarantee uniformity.
[0003] Although some existing concrete mixer trucks integrate mixing functions, they still have drawbacks: the mixing structure is fixed, the mixing shaft is rigidly connected to the tank, it cannot be adapted to mixing drums of different specifications, loading and unloading rely on crane assistance, the operation is not flexible, and it occupies a lot of space and is not flexible enough in use.
[0004] Therefore, to solve the above problems, a dry mixer truck that can mix on the spot, quickly change loads, and is wear-resistant and stable is provided. Utility Model Content
[0005] The purpose of this utility model is to provide a dry mixer truck with the functions of mixing on the spot, quick loading and unloading, and wear resistance and stability. It solves the problems of existing technology where the mixing shaft is rigidly connected to the tank body, cannot be adapted to mixing drums of different specifications, relies on crane assistance for loading and unloading, has poor operational flexibility, occupies a large space, and is not flexible enough in use.
[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a dry mixing and transport vehicle, including a cab and a body. The cab is equipped with a driver's cab, and the top of the body is equipped with a cargo bed. Wheels are provided on both sides of the bottom of the cab and the body. Doors are provided on both sides of the cab. A support frame is provided inside the cargo bed. A support is installed at the bottom of the support frame. An electric cylinder is installed on the top of the support. A movable pulley is installed on the top of the piston rod of the electric cylinder. A lifting belt is provided on the movable pulley. One end of the lifting belt is connected to the support and the other end is connected to the rear of the lifting platform. A motor is installed on the top of the lifting platform. The output shaft of the motor is vertically downward connected to a mixing shaft. The mixing shaft is inserted into the mixing tank and has mixing blades.
[0007] Preferably, the stirring blades are spiral blades, the stirring blades are made of wear-resistant alloy steel, and the stirring blades are arranged in multiple staggered layers along the stirring shaft axis.
[0008] Preferably, the lifting sling is a high-strength nylon braided sling or a steel wire rope.
[0009] Preferably, the support frame is welded from channel steel, and the bottom of the support frame is fixed to the top of the truck bed by bolts.
[0010] Preferably, the bottom of the electric cylinder is fixedly mounted on the support by a flange or bolts.
[0011] Preferably, the lifting platform is provided with guide wheels on both sides, and vertical guide rails are provided on both sides of the support frame corresponding to the guide wheel positions, with the guide wheels and guide rails slidingly engaged.
[0012] Preferably, the mixing tank is placed on top of the truck bed, and the mixing tank is a barrel with an open top, a hollow interior, and a flat bottom.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. This utility model can continuously stir powdered or granular materials during transportation, effectively preventing material caking or segregation. It has an electric lifting mechanism to facilitate loading and unloading of the mixing tank, making operation labor-saving and efficient.
[0015] 2. This utility model has the functions of stirring in the middle, quick change and wear resistance and stability. It solves the problems of existing technology where the stirring shaft is rigidly connected to the tank body, cannot be adapted to different specifications of stirring tanks, loading and unloading rely on crane assistance, poor operation flexibility, large space occupation and insufficient use. Attached Figure Description
[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a structural diagram of a dry mixer truck according to one embodiment;
[0018] Figure 2 This is a partial structural diagram of a dry mixer truck according to one embodiment;
[0019] In the above diagram, 1. front of the vehicle, 2. vehicle body, 3. wheels, 4. door, 5. support frame, 6. electric cylinder, 7. lifting platform, 8. motor, 9. mixing shaft, 10. mixing tank, 11. support, 12. movable pulley, 13. lifting belt, 14. guide wheel, 15. mixing blade. Detailed Implementation
[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0022] Example 1, as Figure 1-2 As shown, a dry-mixing transport vehicle includes a cab 1 and a body 2. The cab 1 is the driving and control area, and the body 2 is the main body. The cab 1 houses the driver's cab, and the body 2 has a cargo bed on top, providing a flat and stable working surface. Wheels 3 are located on both sides of the bottom of the cab 1 and body 2, and doors 4 are located on both sides of the cab 1. The cab 1, body 2, wheels 3, and doors 4 form the basic platform of the transport vehicle. The cab 1 provides the driving space, the body 2 carries the cargo bed and working components, the wheels 3 enable vehicle movement, and the doors 4 allow personnel to enter and exit. The body 2 utilizes a mature truck chassis, offering high mobility and facilitating long-distance material transport and transfer.
[0023] An internal support frame 5 is installed in the truck bed. The support frame 5 is fixed to the truck bed and serves as the load-bearing skeleton and mounting base for the mixing and lifting mechanism, providing mounting points for other components. A support 11 is installed at the bottom of the support frame 5, and an electric cylinder 6 is mounted on top of the support 11. The support 11, installed at the bottom of the support frame 5, serves as the mounting base for the electric cylinder 6. A movable pulley 12 is installed on the top of the piston rod of the electric cylinder 6. A lifting belt 13 is mounted on the movable pulley 12. One end of the lifting belt 13 is connected to the support 11, and the other end is connected to the rear side of the lifting platform 7. The lifting belt 13 transmits the lifting force of the electric cylinder 6, directly pulling the lifting platform 7 up or down. The movable pulley 12, installed on top of the piston rod of the electric cylinder 6, serves as the steering and fulcrum of the lifting belt 13, converting the movement of the piston rod into the lifting traction force of the lifting belt 13.
[0024] A motor 8 is mounted on the top of the lifting platform 7. The output shaft of the motor 8 is vertically connected to a stirring shaft 9, which is inserted into the mixing tank 10. The stirring shaft 9, connected to the output shaft of the motor 8 and extending deep into the mixing tank 10, serves as the carrier for mounting the stirring blades 15, transmitting the rotational power of the motor 8 to the stirring blades 15. The stirring blades 15 are mounted on the stirring shaft 9, directly acting on the material. Through rotation, they mix, shear, and tumble the dry powder material, preventing segregation and caking. The lifting platform 7 carries the motor 8 and the stirring shaft 9, and can be vertically raised and lowered under the drive of the electric cylinder 6. The motor 8, as the power source, drives the stirring shaft 9 to rotate, providing reliable and adjustable rotational power to drive the stirring blades 15.
[0025] The specific design of the aforementioned key components will be discussed in detail below:
[0026] The stirring blade 15 is a spiral blade. The spiral structure generates axial thrust when rotating, which pushes the material to circulate up and down, eliminating dead zones in the stirring. The stirring blade 15 is made of wear-resistant alloy steel. For materials such as cement and mineral powder, which are highly abrasive, high-chromium cast iron such as Cr26 or hard alloy coating is used, with a hardness of HRC 60 or above. The stirring blade 15 is arranged in multiple layers along the stirring shaft 9, with 2-5 layers along the shaft. The included angle between adjacent layers is 60°-90°, covering the entire height of the barrel, forming a turbulent + convection composite flow field to enhance the stirring effect.
[0027] The lifting sling 13 is either a high-strength nylon braided strap or a steel wire rope. High-strength nylon braided straps are suitable for applications requiring lightweight construction, are corrosion-resistant, and are suitable for humid environments. A steel wire rope is an alternative, offering higher load-bearing capacity and wear resistance, but it requires regular oiling for rust prevention.
[0028] The support frame 5 is welded from channel steel, and its bottom is fixed to the top of the truck bed by bolts. The channel steel is selected from national standard Q345B channel steel, with a yield strength of 345MPa and strong resistance to deformation. The bolt connection method is M16 high-strength bolts, with anti-loosening washers.
[0029] The bottom of the electric cylinder 6 is fixedly mounted on the support 11 by a flange or bolts. A 20mm thick flange is selected to distribute stress. The small electric cylinder 6 uses 4×M12 bolts, combined with vulcanized rubber pads for shock absorption. Preferably, the flatness of the mounting surface is ≤0.1mm / m to prevent uneven wear of the piston rod.
[0030] Guide wheels 14 are provided on both sides of the lifting platform 7, and vertical guide rails are provided on both sides of the support frame 5 corresponding to the positions of the guide wheels 14. The guide wheels 14 slide in cooperation with the guide rails. The guide wheels 14 are double-flange nylon wheels with embedded needle roller bearings and a friction coefficient of <0.1. The guide wheels 14 are installed on both sides of the lifting platform 7 and slide in cooperation with the vertical guide rails fixed on both sides of the support frame 5, constraining the movement trajectory of the lifting platform 7 and ensuring strictly vertical lifting.
[0031] The mixing tank 10 is placed on top of the truck bed. The mixing tank 10 is an open-topped, hollow, and flat-bottomed tank. The mixing tank 10 is not rigidly connected to the mixing shaft 9, allowing for quick loading and unloading on the truck bed. It can be placed in or lifted out of the truck bed manually or by a hoisting mechanism. Mixing tanks 10 of different volumes or sizes can be replaced, greatly improving the flexibility of the equipment. The mixing tank 10 can be removed separately for cleaning or maintenance. When unloading, a vibrator can be used to achieve a 95% emptying rate.
[0032] The recommended design for the tank body is a 2mm thick wear-resistant NM360 steel plate lining and a Q235B carbon steel outer shell, with a total wall thickness of 6mm, which facilitates manufacturing and replacement. The mixing tank 10 has an open top for easy feeding and insertion of the mixing shaft 9, a flat bottom for easy placement, and a groove at the bottom of the truck bed for easy placement of the mixing tank 10.
[0033] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A dry-mix concrete mixer truck, comprising a cab and a body, wherein the cab houses a driver's cab and the body has a cargo bed on top, characterized in that, The vehicle is equipped with wheels on both sides of the front and bottom of the vehicle body. Doors are located on both sides of the front. A support frame is installed inside the truck bed. A support is installed at the bottom of the support frame. An electric cylinder is installed on the top of the support. A movable pulley is installed on the top of the piston rod of the electric cylinder. A lifting strap is installed on the movable pulley. One end of the lifting strap is connected to the support and the other end is connected to the rear of the lifting platform. A motor is installed on the top of the lifting platform. The output shaft of the motor is vertically downward connected to a stirring shaft. The stirring shaft is inserted into the stirring tank and has stirring blades.
2. The dry mixer truck according to claim 1, characterized in that, The stirring blades are spiral blades made of wear-resistant alloy steel, and the stirring blades are arranged in multiple staggered layers along the stirring shaft axis.
3. The dry mixer truck according to claim 1, characterized in that, The lifting sling is a high-strength nylon braided sling or steel wire rope.
4. The dry mixer truck according to claim 1, characterized in that, The support frame is welded from channel steel, and the bottom of the support frame is fixed to the top of the truck bed by bolts.
5. The dry mixer truck according to claim 1, characterized in that, The bottom of the electric cylinder is fixedly mounted on the support by a flange or bolts.
6. The dry mixer truck according to claim 1, characterized in that, The lifting platform is equipped with guide wheels on both sides, and vertical guide rails are provided on both sides of the support frame corresponding to the guide wheel positions. The guide wheels and guide rails slide together.
7. The dry mixer truck according to claim 1, characterized in that, The mixing tank is placed on top of the truck bed. The mixing tank is an open-topped, hollow, and flat-bottomed container.