Asphalt mixture stirring device

Abstract

The utility model relates to the technical field of road building machinery, in particular to an asphalt mixture stirring device which is characterized in that the bottom of a stirring pot is hemispherical; a support bar; the stirring structure comprises a first driving part, a rotating shaft and a stirring head, the first driving part is arranged on the supporting rod and provided with an output end, the output end of the first driving part is fixed to one end of the rotating shaft and used for driving the rotating shaft to rotate, and the stirring head is arranged at the other end of the rotating shaft and located in the stirring pot. The stirring head comprises a circular ring and a plurality of stirring rods, the circular ring is vertically arranged, the radian of the circular ring is matched with that of the stirring pot, the rotating shaft penetrates through the circular ring, the end of the rotating shaft is fixed to the side wall of the circular ring, the stirring rods are obliquely arranged on the side wall of the rotating shaft, and the ends, away from the rotating shaft, of the stirring rods are fixed to the inner side wall of the circular ring. The stirring device has the advantages that stirring can be carried out more uniformly, meanwhile, stirring can be carried out at all positions of the bottom of the stirring pot, no dead angle exists, and the working efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction machinery, in particular to an asphalt mixture stirring device. Background Art

[0002] Asphalt is a dark brown complex mixture composed of hydrocarbons of different molecular weights and their non-metallic derivatives. It is a kind of high-viscosity organic liquid. It is in liquid state, with a black surface and is soluble in carbon disulfide. Asphalt is an organic gelling material that is waterproof, moisture-proof and anti-corrosive. Asphalt is the main material used in road paving, and other materials are added as the main base material of the road surface. Due to the poor fluidity of asphalt, a stirring device is required to stir the asphalt mixture evenly. If the asphalt mixture is not stirred evenly, various diseases will occur prematurely during the use of the asphalt mixture. The more evenly the asphalt mixture is mixed, the better the bonding effect between the asphalt mixtures, and the amount of asphalt can be reduced.

[0003] At present, the device for mixing asphalt mixture usually places the asphalt mixture in a barrel-shaped mixing pot, and then puts a mixing head in the mixing pot, drives the mixing head to rotate by a motor to complete the mixing of the asphalt mixture, and arranges multiple mixing blades at the bottom of the mixing head for mixing. Such a mixing method can achieve mixing to a certain extent, but the mixing method is relatively simple during use, which may lead to insufficient mixing, and the asphalt mixture may be easily deposited inside the mixing pot, resulting in the production of unqualified products and cracks on the road. At the same time, the pot bottom of the existing mixing device has a mixing dead angle, which may easily cause raw materials to remain on the bottom and side walls of the mixing pot. There will also be excessive friction resistance at the corners of the mixing blades, which will reduce the mixing efficiency, thus resulting in insufficient mixed raw materials, and thus reducing the quality of the asphalt. Utility Model Content

[0004] The purpose of the utility model is to overcome the problems existing in the above-mentioned prior art and provide an asphalt mixture stirring device, which can stir more evenly and stir all parts of the bottom of the stirring pot at the same time, stir evenly without dead corners and with high work efficiency.

[0005] The technical solution of the utility model is:

[0006] An asphalt mixture stirring device, comprising:

[0007] A stirring pot, used for containing asphalt mixture, wherein the bottom of the stirring pot is hemispherical;

[0008] Support rods;

[0009] A stirring structure is arranged on the support rod, and the stirring structure includes a first driving member, a rotating shaft and a stirring head. The first driving member is arranged on the support rod, and the first driving member has an output end. The rotating shaft is vertically arranged, and the output end of the first driving member is fixed to one end of the rotating shaft. The output end of the first driving member is used to drive the rotating shaft to rotate. The stirring head is arranged at the other end of the rotating shaft, and the stirring head is located in the stirring pot. The stirring head includes a circular ring and a plurality of stirring rods. The circular ring is vertically arranged, and the curvature of the circular ring matches the curvature of the stirring pot, and the rotating shaft passes through the circular ring, and the end of the rotating shaft is fixed to the side wall of the circular ring. The plurality of stirring rods are respectively inclinedly arranged on the side walls of the rotating shaft, and the ends of the plurality of stirring rods facing away from the rotating shaft are fixed to the inner wall of the circular ring.

[0010] Preferably, the angle between the central axis of the stirring rod and the central axis of the rotating shaft close to the bottom end of the rotating shaft is 15°-65° or 105°-155°.

[0011] Preferably, the angle between the central axis of the stirring rod and the central axis of the rotating shaft close to the bottom end of the rotating shaft is 45° or 135°.

[0012] Preferably, the stirring rod is a stirring blade, the length direction of the stirring blade is the first direction, the width direction of the stirring blade is the second direction, the two ends of the stirring blade along the first direction are respectively fixed to the side wall of the rotating shaft and the inner wall of the ring, and the thickness of the stirring blade gradually decreases from the middle to both sides along the second direction.

[0013] Preferably, it also includes:

[0014] Base;

[0015] A plurality of columns are respectively vertically arranged on the base, and the plurality of columns are distributed in a circular array;

[0016] A fixing ring is arranged on the top ends of the plurality of the uprights, and the support rod is vertically arranged on the inner side wall of the fixing ring;

[0017] The annular cover is arranged on the base, and the side walls of the plurality of columns are fixed to the outer side wall of the annular cover, and the stirring pot is arranged on the inner wall of the annular cover.

[0018] Preferably, fixing rods are symmetrically provided on the side wall of the stirring pot, two of the fixing rods are arranged horizontally, and one end of the two fixing rods facing away from the stirring pot is fixed to the side wall of the annular cover.

[0019] Preferably, the inner wall of the annular cover is provided with an annular track along its circumference, and one end of the two fixing rods away from the stirring pot is slidably connected to the annular track, and further comprises:

[0020] The driving structure has an output end, the output end of the driving structure is connected to the fixing rod, and the driving structure is used to drive the fixing rod to slide in the annular track.

[0021] Preferably, the annular track is wavy, and the driving structure comprises:

[0022] A second driving member is arranged at one end of one of the fixing rods away from the stirring pot, the second driving member has an output shaft, and the output shaft of the second driving member is arranged horizontally;

[0023] A gear, which is fixedly mounted on the output shaft of the second driving member, the second driving member is used to drive the gear to rotate, and the gear is clamped in the annular track;

[0024] An arc-shaped rack is fixedly mounted on the side wall of the annular track, and the arc-shaped rack is meshed with the gear.

[0025] Preferably, a slide groove is provided on the side wall of the support rod, the slide groove is provided along the length direction of the support rod, a slider is slidably connected in the slide groove, and one end of the slider away from the slide groove is connected to the first driving member.

[0026] Preferably, a plurality of balls are provided between the slider and the slide groove, a plurality of grooves are provided on the side wall of the slider, the plurality of balls are clamped in the plurality of grooves, and the plurality of balls are in contact with the slide groove.

[0027] Compared with the prior art, the asphalt mixture stirring device provided by the utility model has the following beneficial effects:

[0028] This device can stir the asphalt mixture more fully, avoid producing unqualified products, and cause cracks on the road. At the same time, it can stir all parts of the bottom of the mixing pot, avoid the accumulation of asphalt mixture at the bottom of the pot, and reduce the quality of asphalt. The mixing is uniform without dead angles, with high work efficiency and saving manpower and material resources. When in use, the first driving member is operated to drive the rotating shaft to rotate, thereby driving the stirring head to rotate as a whole. First, because the bottom of the mixing pot is semicircular, during the mixing process, the ring fits with the bottom of the mixing pot to avoid the accumulation of asphalt mixture at the bottom of the pot. Secondly, multiple stirring rods are tilted between the rotating shaft and the ring. During the mixing process, the shear force of the stirring rod can be used to stir more evenly, so as to fully stir the asphalt mixture. In addition, the device is also provided with a driving structure, which can make the mixing pot slide in the circular track to realize the rotation of the mixing pot. The asphalt mixture is stirred more evenly through the dual movement of the stirring head and the mixing pot. The device has a simple structure, convenient operation, and a small size, and can be widely used in scientific research in laboratories. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the structure of the utility model;

[0030] Figure 2 It is a side view of the utility model;

[0031] Figure 3 Schematic diagram of the structure of the practical circular track;

[0032] Figure 4 This is a schematic diagram of the local structure of the practical drive structure. DETAILED DESCRIPTION

[0033] The technical solution in the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of the present application, unless otherwise specified, " / " means or, for example, A / B can mean A or B: "and / or" in the text is only a description of the association relationship of associated objects, indicating that there can be three relationships, for example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiments of the present application, "multiple" means two or more than two.

[0034] In the following, the terms "first" and "second" are used for descriptive purposes only and should not be understood as suggesting or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features.

[0035] The utility model provides an asphalt mixture stirring device, which is combined with Figures 1 to 4 The utility model is described with reference to the structural schematic diagram, but it should be understood that the protection scope of the utility model is not limited by the specific implementation methods.

[0036] Example 1

[0037] like Figure 1As shown, the utility model provides an asphalt mixture stirring device, including a stirring pot 7 for containing asphalt mixture. The bottom of the stirring pot 7 is hemispherical. The stirring pot 7 is mainly composed of a hemispherical pot bottom and a cylindrical pot body to form an integrated structure of the stirring pot 7. The bottom of the stirring pot 7 is hemispherical, which avoids dead corners of the pot bottom, so that the asphalt mixture will not accumulate at the corners of the pot bottom during the stirring process. The device also includes: a support rod 10, a first driving member 8, a rotating shaft, and a stirring head 9. A support rod 10; a first driving member 8 is arranged on the support rod 10, and the support rod 10 supports the first driving member 8, and the first driving member 8 has an output end; the rotating shaft is arranged vertically, and one end of the rotating shaft is connected to the output end of the first driving member 8, and the output end of the first driving member 8 is used to drive the rotating shaft to rotate, and the first driving member 8 can be a motor or a steering gear or other rotating drive structure; a stirring head 9 is arranged at the other end of the rotating shaft, and the stirring head 9 is located in the stirring pot 7. The stirring head 9 includes a ring and a plurality of stirring rods. The ring is arranged vertically, and the curvature of the ring matches the curvature of the stirring pot 7. The bottom of the ring fits with the bottom of the stirring pot 7 to avoid accumulation of asphalt mixture at the bottom of the pot, and the rotating shaft passes through the top of the ring, and the end of the rotating shaft is fixed to the side wall of the ring. Figure 1 It can be seen that the bottom end of the rotating shaft is fixed to the inner wall of the bottom of the ring, the central axis of the rotating shaft passes through the center of the ring, and multiple stirring rods are respectively arranged obliquely on the side wall of the rotating shaft, and the ends of the multiple stirring rods away from the rotating shaft are fixed to the inner wall of the ring. When the device is in use, the first driving member 8 is operated to drive the rotating shaft to rotate, thereby driving the stirring head 9 to rotate as a whole. First, because the bottom of the stirring pot 7 is semicircular, during the stirring process, the ring fits with the bottom of the stirring pot 7 to avoid the accumulation of asphalt mixture at the bottom of the pot. Secondly, multiple stirring rods are arranged obliquely between the rotating shaft and the ring. During the stirring process, the shear force of the stirring rod can be used to stir more evenly, so as to fully stir the asphalt mixture. The device can stir the asphalt mixture more fully, avoid the production of unqualified products, and cause cracks on the road. At the same time, it can stir to various places on the bottom of the stirring pot 7 to avoid the accumulation of asphalt mixture at the bottom of the pot, which leads to the phenomenon of reduced quality of asphalt. The stirring is uniform without dead angles, with high work efficiency and saving manpower and material resources.

[0038] Furthermore, the angle between the central axis of the stirring rod and the central axis of the rotating shaft near the bottom of the rotating shaft is 15°-65° or 105°-155°. That is to say, there are two ways to tilt the stirring rod, one is to form an acute angle with the bottom of the rotating shaft, and the other is to form an obtuse angle, and when the angle is within the range of 15°-65° or 105°-155°, a better stirring effect can be achieved.

[0039] Furthermore, the angle between the central axis of the stirring rod and the central axis of the rotating shaft close to the bottom end of the rotating shaft is 45° or 135°. At this angle, the stirring effect is best.

[0040] Because the asphalt mixture has a certain viscosity, further, the stirring rod is a stirring blade, the length direction of the stirring blade is the first direction, the width direction of the stirring blade is the second direction, the two ends of the stirring blade along the first direction are respectively fixed to the side wall of the rotating shaft and the inner side wall of the ring, and the thickness of the stirring blade gradually decreases from the middle to the two sides along the second direction. In other words, the two sides of the stirring blade are pointed, and when the stirring blade rotates with the rotating shaft and the ring, the tips on both sides of the stirring blade can better shear the viscous asphalt mixture, so as to stir it more evenly.

[0041] Example 2

[0042] As a further improvement on Example 1, further, Figure 2 As shown, it also includes: a base 1, columns 2, a fixing ring 12, and an annular cover 5. The base 1 supports the overall device; multiple columns 2 are vertically arranged on the base 1, and multiple columns 2 are distributed in an annular array; the fixing ring 12 is arranged at the top of multiple columns 2, and the support rod 10 is vertically arranged on the inner side wall of the fixing ring 12, and the middle part of the support rod 10 is fixed to the fixing ring 12. Multiple columns 2 and the fixing ring 12 can support the support rod 10. The support rod 10 is not very long and its two ends are suspended. The first driving member 8 is a motor, and the motor base is fixed on the side wall of the support rod 10; the annular cover 5 is arranged on the base 1, and the side walls of multiple columns 2 are fixed to the outer side wall of the annular cover 5. The stirring pot 7 is mounted on the inner wall of the annular cover 5, and the stirring pot 7 is supported by the annular cover 5 so that the stirring pot 7 is coaxial with the rotating shaft.

[0043] Furthermore, fixing rods 4 are symmetrically arranged on the side wall of the stirring pot 7, and two fixing rods 4 are arranged horizontally and on the same horizontal plane, and one end of the two fixing rods 4 away from the stirring pot 7 is fixed to the side wall of the annular cover 5. The stirring pot 7 is connected to the annular cover 5 through the two fixing rods 4 to support the stirring pot 7.

[0044] In order to achieve a better stirring effect, further, the inner wall of the annular cover 5 is provided with an annular track 11 along its circumference, and the ends of the two fixed rods 4 away from the mixing pot 7 are slidably connected to the annular track 11, and further comprising: a driving structure having an output end, the output end of the driving structure being connected to the fixed rods 4, and the driving structure being used to drive the fixed rods 4 to slide in the annular track 11. The first driving member 8 drives the mixing head 9 to rotate to stir the asphalt mixture in the mixing pot 7, and at the same time, the driving structure also drives the fixed rods 4 to slide in the annular track 11, that is, the fixed rods 4 can drive the mixing pot 7 to slide in the annular track 11, so as to realize the rotation of the mixing pot 7, and the asphalt mixture is more evenly stirred through the dual motion of the mixing head 9 and the mixing pot 7.

[0045] Among them, other structures of this embodiment are consistent with those of embodiment 1, and are just optimizations made to embodiment 1.

[0046] Example 3

[0047] As a further improvement on Example 2, further, Figure 3 As shown, the annular track 11 is wavy, that is, the annular track 11 has a certain periodicity, and the shape of the annular track 11 is similar to the images of the sine function and the cosine function. This embodiment provides a specific structure of a driving structure, and the driving structure includes: a second driving member 3, a gear 6, and an arc-shaped rack. The second driving member 3 is arranged at the end of one of the fixed rods 4 away from the stirring pot 7. The second driving member 3 has an output shaft, and the output shaft of the second driving member 3 is arranged horizontally; the gear 6 is fixedly mounted on the output shaft of the second driving member 3, and the second driving member 3 is used to drive the gear 6 to rotate. The second driving member 3 is a motor or a servo. The base of the second driving member 3 is fixed to the end of one of the fixed rods 4. When the second driving member 3 is working, it will not drive the fixed rod 4 to rotate. The gear 6 is clamped in the annular track 11; the arc-shaped rack is fixedly mounted on the side wall of the annular track 11, as shown in FIG. Figure 4 As shown, the arc-shaped rack meshes with the gear 6, and the gear 6 is stuck between the arc-shaped rack and the other side of the annular track 11. The working principle of the driving structure: the second driving member 3 works, driving the gear 6 to rotate, and the gear 6 meshes with the arc-shaped rack. When the gear 6 rotates, it can move along the path of the arc-shaped rack, so that the stirring pot 7 can be driven to move along the path of the annular track 11. When the fixed rod 4 connected to the second driving member 3 moves with the movement of the gear 6, it synchronously drives another fixed rod 4 to slide in the annular track 11, and because the annular track 11 is wavy, in order to ensure that the stirring pot 7 is in the annular track 11, the two fixed rods 4 are synchronously located at the crest or trough of the annular track 11 during the rotation of the stirring pot 7, and the stirring pot 7 can also rotate and move up and down along the path of the annular track 11, so as to achieve a better stirring effect. Among them, in order to increase the support of the stirring pot 7, a telescopic rod can be set between the bottom of the stirring pot 7 and the base 1, and the telescopic rod can provide support for the stirring pot 7, and the telescopic rod can be extended and retracted with the stirring pot 7 up and down.

[0048] In the process of the stirring pot 7 rotating and moving up and down along the circular track 11, the stirring head 9 needs to follow the shape of the bottom of the stirring pot 7. Furthermore, a slide groove is provided on the side wall of the support rod 10, and the slide groove is provided along the length direction of the support rod 10. A slider is slidably connected in the slide groove, and the end of the slider away from the slide groove is connected to the first driving member 8, and the slider is fixed to the base of the first driving member 8. When the stirring pot 7 moves upward along the circular track 11, the bottom of the stirring pot 7 presses against the bottom of the stirring head 9, so that the slider moves upward in the slide groove; when the stirring pot 7 moves downward along the circular track 11, the stirring head 9, the rotating shaft, the first driving member 8 and other structures move the slider downward in the slide groove due to their own weight, so that the stirring head 9 can move with the movement of the stirring pot 7 without affecting the stirring.

[0049] In order to make the slider slide better in the slide groove, further, a plurality of balls are arranged between the slider and the slide groove, a plurality of grooves are opened on the side wall of the slider, a plurality of balls are clamped in the plurality of grooves, and a plurality of balls abut against the slide groove. The friction between the slider and the slide groove is reduced by arranging balls between the slider and the slide groove, and lubricating oil can be applied between the slider and the slide groove, so that the slider can slide more smoothly in the slide groove.

[0050] Among them, the other structures of this embodiment are consistent with those of Embodiment 2, and are just optimizations made to Embodiment 2.

[0051] The advantage of the utility model is that the device can stir the asphalt mixture more fully, avoid producing unqualified products, and cause cracks on the road. At the same time, it can stir all parts of the bottom of the mixing pot, avoid the accumulation of asphalt mixture at the bottom of the pot, and cause the quality of asphalt to decrease. The mixing is uniform without dead angles, the work efficiency is high, and manpower and material resources are saved. When in use, the first driving member is operated to drive the rotating shaft to rotate, thereby driving the stirring head to rotate as a whole. First, because the bottom of the mixing pot is semicircular, during the mixing process, the ring fits with the bottom of the mixing pot to avoid the accumulation of asphalt mixture at the bottom of the pot. Secondly, multiple stirring rods are tilted between the rotating shaft and the ring. During the mixing process, the shear force of the stirring rod can be used to stir more evenly, so as to fully stir the asphalt mixture. In addition, the device is also provided with a driving structure, which can make the mixing pot slide in the circular track to realize the rotation of the mixing pot, and the asphalt mixture is stirred more evenly through the dual motion of the stirring head and the mixing pot. And the device has a simple structure, convenient operation, and a small size, and can be widely used in scientific research in laboratories.

[0052] The above disclosures are only several specific embodiments of the present invention. However, the embodiments of the present invention are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. An asphalt mixture stirring device, characterized in that: include: A stirring pot (7) for containing asphalt mixture, wherein the bottom of the stirring pot (7) is hemispherical; Support rod (10); A stirring structure is arranged on the support rod (10), the stirring structure comprises a first driving member (8), a rotating shaft and a stirring head (9), the first driving member (8) is arranged on the support rod (10), the first driving member (8) has an output end, the rotating shaft is arranged vertically, the output end of the first driving member (8) is fixed to one end of the rotating shaft, the output end of the first driving member (8) is used to drive the rotating shaft to rotate, the stirring head (9) is arranged at the other end of the rotating shaft, the stirring head (9) is located in the stirring pot (7), the stirring head (9) comprises a circular ring and a plurality of stirring rods, the circular ring is arranged vertically, the curvature of the circular ring matches the curvature of the stirring pot (7), the rotating shaft passes through the circular ring, the end of the rotating shaft is fixed to the side wall of the circular ring, the plurality of stirring rods are respectively arranged obliquely on the side wall of the rotating shaft, and the ends of the plurality of stirring rods facing away from the rotating shaft are fixed to the inner side wall of the circular ring.

2. An asphalt mixture stirring device according to claim 1, characterized in that: The angle between the central axis of the stirring rod and the central axis of the rotating shaft close to the bottom end of the rotating shaft is 15°-65° or 105°-155°.

3. An asphalt mixture stirring device according to claim 2, characterized in that: The angle between the central axis of the stirring rod and the central axis of the rotating shaft close to the bottom end of the rotating shaft is 45° or 135°.

4. The asphalt mixture stirring device according to claim 1, characterized in that: The stirring rod is a stirring blade, the length direction of the stirring blade is a first direction, the width direction of the stirring blade is a second direction, the two ends of the stirring blade along the first direction are respectively fixed to the side wall of the rotating shaft and the inner wall of the ring, and the thickness of the stirring blade gradually decreases from the middle to both sides along the second direction.

5. The asphalt mixture stirring device according to claim 1, characterized in that: Also includes: Base (1); A plurality of columns (2) are respectively vertically arranged on the base (1), and the plurality of columns (2) are distributed in a ring array; A fixing ring (12) is arranged on the top ends of the plurality of upright posts (2), and the support rod (10) is vertically arranged on the inner side wall of the fixing ring (12); The annular cover (5) is arranged on the base (1), and the side walls of the plurality of columns (2) are fixed to the outer side wall of the annular cover (5), and the stirring pot (7) is mounted on the inner wall of the annular cover (5).

6. An asphalt mixture stirring device according to claim 5, characterized in that: The side wall of the stirring pot (7) is symmetrically provided with fixing rods (4), the two fixing rods (4) are arranged horizontally, and the ends of the two fixing rods (4) facing away from the stirring pot (7) are fixed to the side wall of the annular cover (5).

7. An asphalt mixture stirring device according to claim 6, characterized in that: The inner wall of the annular cover (5) is provided with an annular track (11) along its circumference, and the ends of the two fixing rods (4) facing away from the stirring pot (7) are slidably connected to the annular track (11), and further comprises: A drive structure has an output end, the output end of the drive structure is connected to the fixing rod (4), and the drive structure is used to drive the fixing rod (4) to slide in the annular track (11).

8. An asphalt mixture stirring device according to claim 7, characterized in that: The annular track (11) is wavy in shape, and the driving structure comprises: A second driving member (3) is arranged at one end of one of the fixing rods (4) away from the stirring pot (7), the second driving member (3) having an output shaft, and the output shaft of the second driving member (3) is arranged horizontally; a gear (6) which is sleeved and fixed on the output shaft of the second driving member (3); the second driving member (3) is used to drive the gear (6) to rotate; and the gear (6) is clamped in the annular track (11); An arc-shaped rack is fixedly mounted on the side wall of the annular track (11), and the arc-shaped rack is meshed with the gear (6).

9. An asphalt mixture stirring device according to claim 8, characterized in that: A slide groove is provided on the side wall of the support rod (10), and the slide groove is provided along the length direction of the support rod (10). A slider is slidably connected in the slide groove, and the end of the slider away from the slide groove is connected to the first driving member (8).

10. An asphalt mixture stirring device according to claim 9, characterized in that: A plurality of balls are arranged between the slider and the slide groove, a plurality of grooves are opened on the side wall of the slider, the plurality of balls are clamped in the plurality of grooves, and the plurality of balls are in contact with the slide groove.

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