Preparation device of composite mortar for highway bridge reinforcement

Abstract

The utility model discloses a composite mortar preparation device for highway bridge reinforcement, which is characterized in that a stirring mechanism and a mixing box in the preparation device adopt a non-contact independent design, and a vibration transmission path is cut off through physical isolation, so that high-frequency vibration of a vibration motor only acts on a mixing box body, and energy is prevented from being transmitted to a rotating shaft and a driving motor. Therefore, the radial offset of the rotating shaft is reduced, the bearing abrasion is reduced, the torque stirring of the rotating shaft is reduced, and the rotating stability of the stirring mechanism is improved. Thus, the advantages of the vibration motor and the stirring mechanism are integrated, so that vibration and stirring are synergistic, the vibration of the mixing box promotes high-frequency micro-motion of material particles, and agglomeration of fibers / nano materials is broken; and the independent stirring blades realize uniform dispersion of the matrix through macroscopic shear convection.

Description

TECHNICAL FIELD

[0001] The utility model relates to mortar preparation technical field, especially a kind of composite mortar preparation device for highway bridge reinforcement. BACKGROUND

[0002] Composite mortar used for highway bridge reinforcement and repair usually contains cement base material, polymer additive, fiber reinforced material etc., to improve the durability and strength of structure. In the preparation of composite mortar, the preparation device needs to be able to uniformly mix these materials, in order to improve the mixing effect, the current part of the preparation device will set vibration motor on the mixing box, vibration motor breaks material agglomeration and enhances fluidity through high-frequency vibration, and then improves the mixing effect of material. However, in application, it is found that the vibration energy generated by the vibration motor will be transmitted to the spiral stirring mechanism through the rigidly connected mixing box, the vibration causes the stirring shaft to deviate radially, accelerates the bearing wear, and reduces the practical service life; And it will affect the transmission stability of the stirring mechanism, cause the torque fluctuation of the stirring shaft, and affect the stirring effect. In addition, the stirring mechanism of the existing preparation device is insufficient for stirring near the discharge port, and the insufficient material flow rate in the outlet area causes material stagnation, which makes the material in the outlet area prone to early condensation and blockage, so that the discharge is not smooth after stirring is completed. SUMMARY

[0003] Therefore, the utility model provides a composite mortar preparation device for highway bridge reinforcement, which aims to avoid the influence of vibration motor on the transmission stability of stirring mechanism, and maximizes the mixing effect of material by combining the advantages of vibration motor and stirring mechanism.

[0004] The scheme provided by the utility model comprises:

[0005] A composite mortar preparation device for highway bridge reinforcement comprises:

[0006] A mixing box, the inside of the mixing box forms a mixing cavity, the top of the mixing box is provided with an opening, and the bottom of the mixing box is provided with a discharge port; the side wall of the mixing box is provided with a vibration motor;

[0007] A stirring mechanism, the stirring mechanism comprises a horizontal rotating shaft, stirring blades arranged on the rotating shaft, and a driving motor for driving the rotating shaft to rotate, the stirring mechanism is not in contact with the mixing box, and the rotating shaft and the stirring blades extend into the mixing cavity from the opening in the top of the mixing box.

[0008] As a further optional scheme, it further comprises a first support and a second support;

[0009] The stirring mechanism is arranged on the first support, the first support is provided with two bearing seats, and the rotating shaft is rotatably arranged on the bearing seat;

[0010] The mixing box is arranged on the second support, and the second support forms an overhead space below the mixing box.

[0011] As a further optional solution, the driving motor is connected with the rotating shaft by a belt drive or a chain drive.

[0012] As a further optional solution, the stirring blades are arranged in multiple pieces, and the multiple stirring blades are uniformly distributed in a circumferential direction outside the rotating shaft.

[0013] As a further optional solution, a heating assembly is further included, and the heating assembly is arranged at a discharge port of the mixing box.

[0014] The heating assembly includes a heating box, and the heating box includes an input end and an output end. The input end is connected with the discharge port, the input end is provided with a first control valve, the output end is provided with a second control valve, and a plurality of electric heating tubes are arranged in the heating box.

[0015] As a further optional solution, a protective cover is arranged on one side of the heating box.

[0016] Compared with the prior art, the composite mortar preparation device for reinforcing highway bridges has at least the following beneficial effects:

[0017] The stirring mechanism and the mixing box are independently designed in a non-contact manner, the vibration transmission path is cut off through physical isolation, the high-frequency vibration of the vibration motor only acts on the mixing box body, energy conduction to the rotating shaft and the driving motor is avoided, the radial offset of the rotating shaft is reduced, bearing wear is reduced, the torque of the rotating shaft is reduced, and the rotation stability of the stirring mechanism is improved.

[0018] The advantages of the vibration motor and the stirring mechanism are combined, the vibration and the stirring are synergistically enhanced, the vibration of the mixing box promotes high-frequency micro-movement of material particles, and the agglomeration of fibers / nano materials is broken; the independent stirring blades realize uniform dispersion of the matrix through macroscopic shear convection. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is a structural schematic view of the composite mortar preparation device for reinforcing highway bridges according to an embodiment of the present application;

[0020] Figure 2 is an exploded schematic view of the composite mortar preparation device for reinforcing highway bridges according to an embodiment of the present application;

[0021] Figure 3 is a structural schematic view of the stirring mechanism according to an embodiment of the present application;

[0022] Figure 4 is a structural schematic view of the heating assembly according to an embodiment of the present application;

[0023] Figure 5 is a sectional view of the heating assembly in the embodiment of the utility model;

[0024] In the drawing: 1, mixing box; 11, mixing cavity; 2, vibration motor; 3, stirring mechanism; 31, rotating shaft; 32, stirring blade; 33, driving motor; 4, first support; 41, bearing seat; 5, second support; 51, overhead space; 6, heating assembly; 61, heating box; 611, input end; 612, output end; 62, first control valve; 63, second control valve; 64, electric heating tube; 65, protective cover. DETAILED DESCRIPTION

[0025] The specific embodiments of the utility model are described in further detail below in combination with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but not to limit the scope of the utility model.

[0026] In the description of the utility model, it is understood that the terms "upper", "lower", "front", "rear", "vertical", "horizontal" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0027] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship of two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature. The first and second features can be in direct contact, or the first and second features can be in indirect contact through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0029] Reference Figures 1-5The utility model discloses an embodiment shows a kind of composite mortar preparation device for highway bridge reinforcement, including mixing box 1 and stirring mechanism 3, the inside of mixing box 1 forms mixing cavity 11, the top of mixing box 1 is equipped with opening, and its bottom is equipped with discharge port;The lateral wall of mixing box 1 is equipped with vibration motor 2;Stirring mechanism 3 includes horizontally arranged shaft 31, stirring vane 32 being arranged on the shaft 31 and the driving motor 33 for driving the rotation of the shaft 31, and the shaft 31 and the stirring vane 32 from the opening of the top of the mixing box 1 extend into the mixing cavity 11.

[0030] Wherein, stirring mechanism 3 and mixing box 1 adopt non-contact independent design, pass through physical isolation cut-off vibration transmission path, make the high-frequency vibration of vibration motor 2 only act on mixing box 1 ontology, avoid energy conduction to shaft 31 and driving motor 33. So that the radial offset of shaft 31 reduces, reduces bearing wear, reduces the torque of shaft 31 and drives, improves the rotation stability of stirring mechanism 3. Therefore, the embodiment synthesizes the advantages of vibration motor 2 and stirring mechanism 3, so that vibration and stirring synergistically enhance, and the vibration of mixing box 1 promotes the high-frequency micro-motion of material particles, breaks the agglomeration of fiber / nano material. Independent stirring vane 32 is uniformly dispersed by macroscopic shear convection.

[0031] In some specific embodiments, as shown in Figure 1 And Figure 2 It also includes first support 4 and second support 5;Stirring mechanism 3 is arranged on the first support 4, and the first support 4 is equipped with two bearing seats 41, and the shaft 31 is rotatably arranged on the bearing seat 41;Mixing box 1 is arranged on the second support 5, and the second support 5 forms overhead space 51 below mixing box 1.

[0032] Wherein, the shaft 31 is connected to the bearing seat 41 by bearing (not marked in the figure), to realize the rotation connection of shaft 31 and first support 4. Wherein, the shaft 31 is horizontally arranged, and the two bearing seats 41 can be stably rotated, even if the shaft 31 is suspended on the mixing box 1, the shaft 31 is not in contact with the mixing box 1, and the shaft 31 can also be stably rotated, and the stirring vane 32 stably stirs material. The overhead space 51 formed below the second support 5 can facilitate the discharge of mixing box 1, and a tank or a car can be placed in the overhead space 51 to receive the prepared composite mortar.

[0033] In the above scheme, to improve the transmission stability of shaft 31, as shown in Figure 3As shown, the driving motor 33 is in belt transmission or chain transmission connection with the rotating shaft 31. The driving motor 33 is arranged on the first support 4, and the driving motor 33 does not enter the mixing cavity 11 of the mixing box 1, so as to avoid that the composite mortar pollutes the driving motor 33.

[0034] In the above scheme, as Figure 3 As shown, the stirring blades 32 are arranged in multiple pieces, and the multiple stirring blades 32 are uniformly distributed in the circumferential direction outside the rotating shaft 31. In this way, the load of the outer periphery of the rotating shaft 31 is basically the same, and the serious radial deviation caused by the unbalanced load is avoided.

[0035] In some specific embodiments, referring to Figure 1 、 Figure 4 and Figure 5 , the heating assembly 6 is further arranged at the discharge port of the mixing box 1. The heating assembly 6 comprises a heating box 61, the heating box 61 comprises an input end 611 and an output end 612, the input end 611 is connected to the discharge port, the input end 611 is provided with a first control valve 62, the output end 612 is provided with a second control valve 63, and a plurality of electric heating pipes 64 are arranged in the heating box 61.

[0036] In application, in the initial state, the first control valve 62 and the second control valve 63 are in closed state, the material is introduced into the mixing box 1, and the vibration motor 2 and the stirring mechanism 3 work. When the material is mixed and stirred, the first control valve 62 can be opened, the material in the area near the discharge port (i.e. the outlet area) of the mixing box 1 can enter the heating box 61, the electric heating pipes 64 in the heating box 61 can increase the temperature to heat the material flowing out, and the originally stagnant material can improve the flowability. When the temperature in the heating box 61 reaches a certain degree, the second control valve 63 can be opened to discharge the material.

[0037] During the mixing process, the first control valve 62 is used to isolate the mixing box 1 from the heating box 61, so as to avoid that the material which is not completely mixed enters the heating box 61 in advance. After the mixing is completed, the first control valve 62 is opened, so that the material in the opening area enters the heating box 61, the heating box 61 increases the temperature of the material, the flowability of the material which is originally in a stagnant state in the opening area is improved, the discharge is prevented from being blocked, and the smoothness of the discharge is improved.

[0038] It should be noted that the material in the central area of the mixing box 1 is stirred by the stirring mechanism 3, and has relatively large flowability, so it is not easy to early set and stagnate. The discharge port is the disturbed edge area of the stirring mechanism 3, and the material near the discharge port is less disturbed and easy to stagnate. The heating box 61 is used to heat the part of the material during the discharge, so as to improve the flowability and avoid blockage.

[0039] In addition, as Figure 5As shown, one side of the heating box 61 is provided with a protective cover 65.

[0040] In summary, the application provides a composite mortar preparation device for highway bridge reinforcement, the stirring mechanism 3 and the mixing box 1 in the preparation device are independently designed in a non-contact manner, the vibration transmission path is cut off through physical isolation, the high-frequency vibration of the vibration motor 2 only acts on the body of the mixing box 1, and energy is prevented from being conducted to the rotating shaft 31 and the driving motor 33. Therefore, the radial offset of the rotating shaft 31 is reduced, the bearing wear is reduced, the torque of the rotating shaft 31 is reduced, and the rotation stability of the stirring mechanism 3 is improved.

[0041] In this way, the advantages of the vibration motor 2 and the stirring mechanism 3 are combined, the vibration and stirring are synergistically enhanced, the vibration of the mixing box 1 promotes the high-frequency micro-motion of material particles, and the agglomeration of fibers / nano materials is broken; and the independent stirring blade 32 realizes uniform dispersion of the matrix through macroscopic shear convection.

[0042] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0043] The above is only the preferred embodiment of the application, and it should be pointed out that for ordinary skilled persons in the technical field, some improvements and replacements can be made without departing from the technical principles of the application, and these improvements and replacements should also be regarded as the protection range of the application.

Claims

1. A composite mortar preparation device for highway bridge reinforcement, characterized in that, The utility model relates to a composite mortar preparation device for highway bridge reinforcement, which comprises a mixing box, a stirring mechanism and a heating assembly.

2. The composite mortar preparation device for highway bridge reinforcement according to claim 1, further comprising a first support and a second support.

3. The composite mortar preparation device for highway bridge reinforcement according to claim 2, wherein the driving motor and the rotating shaft are connected by a belt drive or a chain drive.

4. The composite mortar preparation device for highway bridge reinforcement according to claim 2, wherein the stirring mechanism comprises a plurality of stirring blades which are evenly distributed around the rotating shaft.

5. The composite mortar preparation device for highway bridge reinforcement according to any one of claims 1-4, further comprising a heating assembly arranged at the discharge port of the mixing box.

6. The composite mortar preparation device for highway bridge reinforcement according to claim 5, wherein the heating assembly comprises a heating box having an input end and an output end, the input end being connected to the discharge port, the input end being provided with a first control valve, the output end being provided with a second control valve, and the heating box being provided with a plurality of electric heating tubes. ​ ​ ​ ​ ​ ​ ​ ​ ​ ​

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