Asphalt material detection, sample preparation and mixing device

Abstract

The utility model belongs to the field of asphalt mixing devices, and discloses an asphalt material detection sample preparation mixing device, a top cover is arranged at the top of a stirring barrel, and a sliding cavity is formed in the inner wall of an avoiding hole in the top cover. And the end part of the guide frame is in sliding fit with the sliding cavity. The driving mechanism comprises a protective cover, a motor and the like, the motor is connected with a driving gear through a first rotating shaft, a plurality of driven gears are meshed with the driving gear, and second rotating shafts are arranged on the inner sides of the driven gears. The stirring mechanism comprises a first stirring assembly and a second stirring assembly which are installed on a first rotating shaft and a second rotating shaft respectively, and the second rotating shaft is further installed on the first stirring assembly. One motor can synchronously drive the two stirring assemblies, due to gear meshing, the horizontal position is relatively static, the stirring efficiency is high, and stability and reliability are high.

Description

Technical Field

[0001] This utility model belongs to the technical field of asphalt mixing devices, specifically relating to an asphalt material testing and sample preparation mixing device. Background Technology

[0002] Asphalt is a mixture of organic compounds, usually obtained by fractionating petroleum or coal tar. It needs to be mixed and stirred before use to ensure that the components are evenly mixed. At the same time, the parameters of the mixed asphalt need to be tested before use to ensure the stability of the asphalt after solidification.

[0003] In related prior art, such as Chinese Patent No. CN222521674U, an asphalt concrete mixing device is disclosed, including a mixing drum. Two inlets are fixedly connected to the top of the mixing drum, and a discharge pipe is fixedly connected to one side of the bottom. A rotating drum is installed inside the mixing drum, and a positioning frame is fixedly connected to the top of the mixing drum. A drive motor is fixedly connected to the inner wall of one end of the positioning frame. A drive belt drives a driven wheel to rotate, which in turn drives the rotating drum, the positioning rod, and the scraper to rotate inside the mixing drum. The scraper can scrape away and clean the asphalt concrete adhering to the inner wall of the mixing drum, making it easier for workers to clean the adhering asphalt concrete, reducing labor intensity, and improving the practicality of the device. Furthermore, the rotation of multiple mixing claws allows for multi-directional mixing of the asphalt concrete, reducing uneven mixing and improving the mixing efficiency of the asphalt concrete.

[0004] However, in actual use, because the drive motor and the rotating drum are connected by a transmission belt, and the viscosity of asphalt is high, the resistance to the positioning rod, scraper, and other components during mixing is significant. This poses a risk of belt slippage, preventing the rotating drum from rotating properly and affecting mixing efficiency. Furthermore, the high temperature during asphalt mixing can compromise the strength of the belt. In summary, the aforementioned device exhibits poor stability and reliability, making it unsuitable for practical use. Utility Model Content

[0005] The present invention aims to provide an asphalt material testing and sample preparation mixing device to solve the problem of poor stability of existing devices mentioned above.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an asphalt sample preparation and mixing device, comprising...

[0007] The mixing tank has a top cover with a clearance hole, and the inner wall of the clearance hole has a sliding cavity.

[0008] The guide frame has a cross-section in the shape of a cross, and the end of the guide frame slides into the sliding cavity.

[0009] The driving mechanism comprises a protective cover, a motor, a first rotating shaft, a driving gear, a driven gear and a second rotating shaft, the protective cover is fixed to the top cover, the motor is fixed to the protective cover, the driving end of the motor is connected with the first rotating shaft, the first rotating shaft is fixed with the guide frame, the driving gear is fixed to the first rotating shaft, the driven gear is arranged in plurality along the circumferential direction of the driving gear, the inner side of the driven gear is fixed with the second rotating shaft, the driven gear is engaged with the driving gear, and the second rotating shaft is distributed in plurality at the end of the guide frame.

[0010] The stirring mechanism comprises a first stirring assembly and a second stirring assembly in the stirring barrel, the first stirring assembly is installed on the first rotating shaft, and the second stirring assembly is installed on the second rotating shaft.

[0011] The principle and effects of the technical scheme are as follows:

[0012] 1. Through the arrangement of the guide frame, the protective cover, the first rotating shaft, the driving gear, the driven gear and the second rotating shaft, the motor drives the first rotating shaft to rotate, the first rotating shaft can drive the first stirring assembly and the driven gear to rotate, the rotation of the driven gear can drive the second stirring assembly to rotate, the second rotating shaft is installed on the first stirring assembly, and the horizontal positions of the second rotating shaft, the second stirring assembly and the driven gear are relatively static.

[0013] 2. Through the arrangement of the cross-shaped guide frame, the guide frame can guide, limit and bear the side pressure of the first rotating shaft, and can also give way to the rotation of the second rotating shaft, so that the second rotating shaft is not limited by the end of the guide frame when rotating in the giving way hole (the guide frame rotates synchronously with the first rotating shaft), and the feasibility of the scheme is ensured.

[0014] 3. The second rotating shaft is installed on the first stirring assembly, so that the second rotating shaft, the second stirring assembly and the driven gear form an integral whole, the positions of the second rotating shaft, the second stirring assembly and the driven gear in the horizontal direction are driven by the first rotating shaft, and the first rotating shaft can also drive the second stirring assembly to rotate by indirectly driving the driven gear, so that the efficiency is high and the stability is strong.

[0015] The utility model further sets up: first stirring assembly includes fixed plate and stirring frame, fixed plate is fixed on first rotating shaft, stirring frame is arranged in plurality around the circumferential direction of fixed plate, the section of stirring frame is'square' shape, second rotating shaft is inserted and is fixed on stirring frame.

[0016] The principle and effects of the technical scheme are as follows: the multiple stirring frames are connected through the fixing plate, so that the inner bitumen of the stirring barrel can be stirred when the first rotating shaft rotates, and the second rotating shaft and the second gear can synchronously rotate around the driving gear.

[0017] The utility model further sets up: first stirring subassembly still includes third rotating shaft and multiple oblique scraper, multiple oblique scraper with multiple stirring frame one to one correspondence, and oblique scraper is fixed in the bottom of stirring frame, the bottom of multiple oblique scraper is mutually spliced, third rotating shaft is fixed in the bottom of first rotating shaft, and first stirring blade is fixed on third rotating shaft, and first stirring blade is located in the inner side of oblique scraper.

[0018] The principle and effects of the technical scheme are as follows: the setting of the third rotating shaft, the oblique scraper and the first stirring blade can stir the bitumen in the conical surface area of the bottom of the stirring barrel, so that the bitumen mixture is more uniform.

[0019] The utility model further sets up: second stirring subassembly includes second stirring blade, and the end of second rotating shaft extends to the inner side of stirring frame, and second stirring blade is arranged with multiple along the axial direction of second rotating shaft.

[0020] The principle and effects of the technical scheme are as follows: the second stirring blade is arranged on the second rotating shaft, and when the driving gear drives the driven gear to rotate, the driven gear drives the second rotating shaft to rotate, that is, the second rotating shaft rotates relative to the stirring frame, so that the second stirring blade can rotate in the stirring frame, and the stirring frame can also drive the second stirring blade to rotate around the first rotating shaft, so that the stirring efficiency is higher.

[0021] The utility model further sets up: the sidewall of the inner side of the protective cover is fixed with the circular rack engaged with the driven gear.

[0022] The principle and effects of the technical scheme are as follows: the setting of the circular rack can limit and guide the rotation of the driven gear, so as to improve the stability of the engagement of the driven gear and the driving gear.

[0023] The utility model further sets up: still include two dustproof plates, two dustproof plates are located in the upper and lower sides of the guide frame respectively, and the dustproof plate is sleeved and fixed on the first rotating shaft, and the dustproof plate is also sleeved on the second rotating shaft.

[0024] The principle and effects of the technical scheme are as follows: the setting of the dustproof plate can fill the blank area between the second rotating shaft and the first rotating shaft, so as to avoid the situation that the bitumen may fly out from the accommodation hole during stirring, prolong the service life of the driving mechanism, and since the dustproof plate is fixed with the first rotating shaft, the first rotating shaft can drive the dustproof plate to rotate, so as to ensure that the dustproof plate and the second rotating shaft remain relatively static in the horizontal plane.

[0025] The utility model further sets up: the outer diameter of dustproof board is greater than the aperture of let -by hole.

[0026] The principle and effect of the technical scheme are as follows: by making the aperture of dustproof board greater than let -by hole, then dustproof board can be closed to let -by hole, thereby improving the protection effect. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the front view of the utility model;

[0028] Figure 2 It is Figure 1 The explosion structure diagram of;

[0029] Figure 3 It is Figure 2 The structure diagram of first rotation axis in stirring barrel in;

[0030] Figure 4 It is Figure 2 The explosion structure diagram of guide frame and dustproof board position relation in. DETAILED DESCRIPTION

[0031] The utility model will be explained in further detail below in combination with the drawings and embodiment:

[0032] The reference signs in the drawings of the specification include:

[0033] 110, stirring barrel; 111, feed inlet; 112, discharge port; 120, top cover; 121, let -by hole; 122, slide cavity;

[0034] 210, guide frame;

[0035] 310, protective cover; 320, motor; 330, first rotation axis; 340, driving gear; 350, driven gear; 360, second rotation axis;

[0036] 410, fixed plate; 420, stirring frame; 430, third rotation axis; 440, first stirring blade; 450, inclined scraper; 460, second stirring blade;

[0037] 510, dustproof board.

[0038] Embodiment:

[0039] As the attached Figures 1-4As shown, the utility model discloses a kind of asphalt material detection sample preparation mixing devices, including stirring barrel 110, guide frame 210, dustproof plate 510, driving mechanism and stirring mechanism, the top of stirring barrel 110 has top cover 120, top cover 120 is opened with let hole 121, the inner wall of let hole 121 has slide cavity 122, the radial dimension of slide cavity 122 is greater than the radial dimension of let hole 121, the lateral wall of stirring barrel 110 has feed inlet 111, the bottom of stirring barrel 110 has discharge port 112, the section of guide frame 210 is in the shape of cross, and the end of guide frame 210 is slidably connected with slide cavity 122.

[0040] Driving mechanism includes protective cover 310, motor 320, first shaft 330, driving gear 340, driven gear 350 and second shaft 360, protective cover 310 is fixed on top cover 120, and protective cover 310 covers let hole 121 completely, and the lateral wall of the inner side of protective cover 310 is fixed with the circular rack engaged with driven gear 350, motor 320 is fixed on protective cover 310, and the driving end of motor 320 is connected with first shaft 330, first shaft 330 is fixed in the middle part of guide frame 210, driving gear 340 is fixed on first shaft 330, and a plurality of driven gears 350 are arranged along the circumferential direction of driving gear 340, and the inner side of driven gear 350 is fixed with second shaft 360, driven gear 350 is engaged with driving gear 340, and second shaft 360 is distributed with the end of guide frame 210, and the lower end of driving gear 340 and driven gear 350 extends to stirring barrel 110.

[0041] Two dustproof plates 510 are located on the upper and lower sides of guide frame 210 respectively, and dustproof plate 510 is sleeved and fixed on first shaft 330, and dustproof plate 510 is also sleeved on second shaft 360, the outer diameter of dustproof plate 510 is greater than the hole diameter of let hole 121, and two dustproof plates 510 are respectively abutted on the upper and lower sides of top cover 120.

[0042] The stirring mechanism comprises a first stirring assembly and a second stirring assembly in the stirring barrel 110, the first stirring assembly comprises a fixed plate 410, a stirring frame 420, a third rotating shaft 430 and a plurality of inclined scrapers 450, the fixed plate 410 is fixed on the first rotating shaft 330, a plurality of stirring frames 420 are arranged at intervals around the circumference of the fixed plate 410, the cross section of the stirring frame 420 is in the shape of a Chinese character 'fang', the second rotating shaft 360 is inserted and fixed on the stirring frame 420, the plurality of inclined scrapers 450 correspond to the plurality of stirring frames 420 one by one, and the inclined scraper 450 is fixed on the bottom of the stirring frame 420, the bottoms of the plurality of inclined scrapers 450 are spliced with each other, the third rotating shaft 430 is fixed on the bottom of the first rotating shaft 330, the first stirring blade 440 is fixed on the third rotating shaft 430, and the first stirring blade 440 is located on the inner side of the inclined scraper 450. The arrangement of the inclined scraper 450, the third rotating shaft 430 and the first stirring blade 440 can better fit the conical part at the bottom of the stirring barrel 110, so that the asphalt at the lower end is stirred, and the second stirring assembly comprises a second stirring blade 460, the end of the second rotating shaft 360 extends to the inner side of the stirring frame 420, and a plurality of second stirring blades 460 are arranged at intervals along the axial direction of the second rotating shaft 360.

[0043] The above is only an embodiment of the present application, and the well-known specific technical solutions or characteristics in the scheme are not described in detail. It should be noted that, for those skilled in the art, without departing from the technical scheme of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. A sample preparation mixing device for bituminous materials, characterized by: Comprising a stirring barrel with a top cover having a clearance hole with a sliding cavity in its inner wall; a guide frame in the shape of a cross section, the end of the guide frame being in sliding fit with the sliding cavity; a driving mechanism including a protective cover, a motor, a first rotating shaft, a driving gear, a driven gear and a second rotating shaft, the protective cover being fixed to the top cover, the motor being fixed to the protective cover, the driving end of the motor being connected with the first rotating shaft, the first rotating shaft being fixed with the guide frame, the driving gear being fixed to the first rotating shaft, the driven gear being provided in plurality along the circumferential direction of the driving gear, the second rotating shaft being fixed to the inner side of the driven gear, the driven gear being in mesh with the driving gear, the second rotating shaft being distributed in interval with the end of the guide frame; a stirring mechanism including a first stirring assembly and a second stirring assembly in the stirring barrel, the first stirring assembly being installed on the first rotating shaft, the second stirring assembly being installed on the second rotating shaft, the second rotating shaft being installed on the first stirring assembly.

2. The asphalt material detection sample preparation mixing device of claim 1, wherein: The first stirring assembly includes a fixed plate and a stirring frame, the fixed plate being fixed to the first rotating shaft, the stirring frame being provided in plurality along the circumferential direction of the fixed plate, the cross section of the stirring frame being in the shape of a "H", the second rotating shaft being inserted and fixed to the stirring frame.

3. The asphalt material testing sample preparation mixing apparatus of claim 2, wherein: The first stirring assembly further includes a third rotating shaft and a plurality of inclined scrapers, the plurality of inclined scrapers corresponding to the plurality of stirring frames one by one, the inclined scrapers being fixed to the bottom of the stirring frames, the bottoms of the plurality of inclined scrapers being spliced with each other, the third rotating shaft being fixed to the bottom of the first rotating shaft, the first stirring blade being fixed to the third rotating shaft, the first stirring blade being located at the inner side of the inclined scrapers.

4. The asphalt material testing sample preparation mixing apparatus of claim 2, wherein: The second stirring assembly includes a second stirring blade, the end of the second rotating shaft extending to the inner side of the stirring frame, the second stirring blade being provided in plurality along the axial direction of the second rotating shaft.

5. The asphalt material testing sample preparation mixing apparatus of claim 1, wherein: The side wall of the inner side of the protective cover is fixed with a circular rack in mesh with the driven gear.

6. The asphalt material testing sample preparation mixing apparatus of claim 1, wherein: Further including two dustproof plates, the two dustproof plates being located on the upper and lower sides of the guide frame respectively, the dustproof plates being sleeved and fixed to the first rotating shaft, the dustproof plates being further sleeved on the second rotating shaft.

7. A sample preparation mixing device for bituminous materials as claimed in claim 6 wherein: The outer diameter of the dustproof plate is greater than the hole diameter of the clearance hole.

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