CN218854179U

CN218854179U - Variable speed mixer for asphalt mixture

Info

Publication number: CN218854179U
Application number: CN202222668606.5U
Authority: CN
Inventors: 朱小玲; 李青芸; 何利; 夏红文; 张晓静; 姜英; 邓筱枫; 孙海蓉; 陈周吉; 李俊松; 庄佳
Original assignee: Sichuan Zhitong Road And Bridge Engineering Technology Co ltd
Current assignee: Sichuan Zhitong Road And Bridge Engineering Technology Co ltd
Priority date: 2022-10-11
Filing date: 2022-10-11
Publication date: 2023-04-14
Anticipated expiration: 2032-10-11

Abstract

The utility model discloses a bituminous mixture variable speed mixer, adjustable (mixing) shaft satisfies the requirement of actual mixing operating mode at the rotational speed of different work condition, including agitator frame, agitator tank, PLC controller, variable frequency speed regulator and motor, the whole slope of agitator tank sets up on the agitator frame, the motor passes through the gear drive mechanism drive the agitator tank is rotatory, the internal wall mounting of agitator tank has helical blade, variable frequency speed regulator connects and controls the operating frequency of motor, and the operating condition of variable frequency speed regulator is connected and is controlled to the PLC controller. The utility model provides a bituminous mixture variable speed mixer here, adjustable (mixing) shaft is at the rotational speed of under the different work condition, and several shelves can be transferred to the rotational speed promptly, satisfy the actual stirring operating mode requirement.

Description

Variable speed mixer for asphalt mixture

Technical Field

The utility model relates to a building material stirring technical field specifically says a bituminous mixture variable speed mixer.

Background

The agitator is widely used in the present asphalt stirring equipment, has the obvious advantages of large capacity, high working efficiency and good stirring quality, and is structurally composed of a horizontally arranged double-circular-groove-shaped stirring cylinder, a driving motor, two parallel agitating shafts rotating in opposite directions, and agitating arms and agitating blades arranged on the two parallel agitating shafts. The applicant of the present application proposes a forced mixer with a double planetary gear transmission for a continuous asphalt mixing plant (No. CN 201070579Y), which includes two stirring shafts rotatably supported on a horizontal mixing drum along an axial direction, and two motors for driving the two stirring shafts, respectively, and is characterized in that: the stirring device also comprises two right-angle planetary gear boxes which are oppositely arranged and arranged on a fixed stirring barrel support, the input shaft of each right-angle planetary gear box is connected with the output shaft of the motor corresponding to a transmission mechanism, and the output shaft of each right-angle planetary gear box is connected with the corresponding stirring shaft through a coupling.

Asphalt is a common material in engineering construction, and when foamed asphalt is used, a stirring cylinder is required to operate at a low rotating speed, so that the stirring cylinder is required to operate at the low rotating speed, and the problem that the foamed asphalt foam is destroyed and completely used up in the early stage of stirring so as to influence the uniformity of the whole mixture is solved. When the common asphalt is used, the stirring cylinder can keep running at a high rotating speed, so that the overall yield of the equipment is improved. When the color asphalt mixture is stirred, the stirring cylinder keeps running at a high rotating speed, and qualified color asphalt mixture can be produced within a limited time. And the structure and the transmission mode of current double horizontal axle stirring host computer make the stirring host computer only have a stirring speed, consequently if when needing multiple material in the engineering construction, need prepare the different stirring host computers of many sets of stirring speed simultaneously, lead to the purchase, use, the maintenance cost height of equipment.

SUMMERY OF THE UTILITY MODEL

Therefore, not enough in order to solve the problem, the utility model provides an asphalt mixture variable speed mixer herein can adjust the (mixing) shaft at the rotational speed under the different work condition, satisfies the actual stirring operating mode requirement.

The utility model is realized in such a way that a variable speed mixer for asphalt mixture is constructed, which comprises a mixing frame, a mixing tank, a PLC controller, a variable frequency speed regulator and a motor; after improvement, the whole stirring tank is obliquely arranged on the stirring frame, the motor drives the stirring tank to rotate through the gear transmission mechanism, and a helical blade is arranged on the inner wall of the stirring tank;

the variable frequency speed regulator is connected with and controls the working frequency of the motor, and the PLC is connected with and controls the working state of the variable frequency speed regulator.

Further, the stirring tank comprises a roller for guiding the stirring tank and reducing friction.

The purpose of this setting lies in, the gyro wheel supports the agitator tank, simultaneously at the agitator tank rotation in-process, leads the agitator tank, reduces the friction.

Further, still including setting up the hot oil tank on the stirring frame and realizing the hot oil pump of hot oil circulation, the agitator tank is outer including stirring inlayer and the stirring of parcel outside the stirring inlayer, is provided with first intermediate layer between stirring inlayer and the stirring skin, the hot oil pump pass through hot oil sleeve pipe with first intermediate layer link, the hot oil pipe with hot oil pump link is installed to hot oil pump one side.

The purpose of this setting is that through the hot oil pump case first intermediate layer internal recycle pump go into hot oil, hot oil is filled first intermediate layer, will stir the inlayer parcel, to heating up, heat preservation in the agitator tank, avoid pitch to solidify at the stirring in-process.

Furthermore, wherein hot oil tank includes the inner tank and wraps up the outer jar in the inner tank outside, be provided with the second intermediate layer between inner tank and the outer jar, install the heating wire in the second intermediate layer.

The purpose of this setting lies in, and the heating wire generates heat, heats oil in the hot oil tank, guarantees hot oil temperature.

Further, still including the feed mechanism who is used for the material loading, including frame, conveyor, loading hopper and guide rail, the whole slope of frame sets up agitator tank front side, and the whole slope of conveyor is installed in the frame, keeps being connected with the conveyor motor who installs in the frame, the guide rail is installed in the frame, the guide rail lower part with conveyor is parallel, the upper portion level, loading hopper one side lower part all rotates with upper portion and installs the connecting axle, respectively with conveyor, guide rail keep being connected, guide rail horizontal segment below is provided with and is used for the feeder hopper in the leading-in agitator tank of raw materials.

The aim at of this setting, conveying motor drive conveyor works, drives the feeding funnel and marches, and when the feeding funnel marched to guide rail upper portion, the feeding funnel upset was emptyd the raw materials to in entering the agitator tank, the feeding of being convenient for reduced intensity of labour.

Further, a protective cover is arranged on the outer side of the feeding mechanism.

The aim at of this setting is to avoid the material loading in-process, and the raw materials spills in the feeding funnel, pounces the staff.

Furthermore, the device also comprises a discharge hopper which is arranged below the feed hopper and used for centralized discharge.

The purpose of this setting lies in, goes out the concentrated ejection of compact of hopper, and too dispersion when avoiding the ejection of compact is not convenient for collect.

Further, still including setting up the baffle box in the play hopper below and articulating the extension silo that keeps away from the play hopper end at the baffle box.

The purpose in that this set up lies in, the baffle box guides the raw materials ejection of compact, is convenient for guide the raw materials to the collection point, and rotatory extension silo can put down the extension silo, can change the length of the baffle box guide ejection of compact.

Furthermore, the device also comprises an adjusting screw rod and a screw rod sleeve for realizing the angle adjustment of the guide chute.

The purpose of this setting is convenient for adjust the angle of baffle box and the height of discharge end according to the operating mode.

The utility model has the advantages of as follows:

in the stirring operation process, the PLC controller adjusts the rotating speed of the motor under different working conditions through frequency conversion control according to relevant parameters such as formula parameters input in advance and the like, so that the actual stirring working condition requirements are met, and therefore, when various materials are needed in engineering construction, a plurality of sets of stirring hosts with different stirring speeds do not need to be prepared at the same time, and the purchase, use and maintenance costs of equipment are reduced.

Secondly, the PLC controller controls the heating wire to generate heat, oil in the hot oil tank is heated, the temperature of the hot oil is guaranteed, the hot oil is pumped into the first interlayer of the hot oil pump box in a circulating mode, the hot oil fills the first interlayer, the stirring inner layer is wrapped, the temperature in the stirring tank is increased and kept, and the asphalt is prevented from being solidified in the stirring process.

The third, still including setting up the play hopper that is used for concentrating the ejection of compact below the feeder hopper, go out hopper fixed mounting on the agitator frame, the fill mouth sets up in agitator tank material mouth below, goes out the hopper and is convenient for pitch and concentrates the ejection of compact, excessively disperses when avoiding the ejection of compact, is not convenient for collect.

The fourth, still including setting up the baffle box in the blown down hopper below and articulating the extension silo that keeps away from the blown down hopper end at the baffle box, the baffle box guides the raw materials ejection of compact, is convenient for guide the raw materials to the collection point, and rotatory extension silo can put down the extension silo, can change the length of the baffle box guide ejection of compact.

Fifthly, the material guide device further comprises an adjusting screw rod sleeve for adjusting the angle of the material guide groove, the material guide groove is hinged to the stirring frame, one end of the adjusting screw rod is hinged to the material guide groove, the screw rod sleeve is sleeved on the outer side of the adjusting screw rod and is in threaded connection with the adjusting screw rod, and the screw rod sleeve is hinged to the stirring frame and is convenient for adjusting the angle of the material guide groove and the height of the discharge end according to working conditions.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic view of the internal structure of the present invention;

FIG. 3 isbase:Sub>A cross-sectional view A-A of FIG. 2;

FIG. 4 is a partial enlarged view I of FIG. 2;

FIG. 5 is a schematic structural view of a hot oil tank;

FIG. 6 is a schematic control diagram;

in the figure: 1. a protective cover; 2. feeding a hopper; 3. a stirring tank; 3-1, stirring the outer layer; 3-2, stirring the inner layer; 4. a gear transmission mechanism; 5. a motor; 6. a stirring frame; 7. a feed hopper; 8. a hot oil tank; 8-1, an inner tank; 8-2, an outer tank; 9. a roller; 10. a first interlayer; 11. a hot oil jacket; 12. a frame; 13. a conveying device; 14. a guide rail; 15. a helical blade; 16. a discharge hopper; 17. a material guide chute; 18. a lengthening trough; 19. adjusting the screw rod; 20. a screw sleeve; 21. a conveying motor; 22. a variable frequency governor; 23. a hot oil pipe; 24. a PLC controller; 25. an electric heating wire; 26. a hot oil pump; 27. a second interlayer.

Detailed Description

The present invention will be described in detail with reference to fig. 1 to 6, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

Example 1

The utility model provides an asphalt mixture variable speed mixer through improvement, which comprises a mixing frame 6, a mixing tank 3, a PLC 24, a variable frequency speed regulator 22 and a motor 5, wherein the mixing tank 3 is wholly arranged on the mixing frame 6 in an inclined way, the motor 5 drives the mixing tank 3 to rotate through a gear transmission mechanism 4, and the inner wall of the mixing tank 3 is provided with a helical blade 15;

the variable frequency speed regulator 22 is connected with and controls the working frequency of the motor 5, and the PLC 24 is connected with and controls the working state of the variable frequency speed regulator 22.

Principle of operation

The raw materials are fed into a feeding port at the front side of the stirring tank 3, the PLC 24 controls the variable-frequency speed regulator 22 to work according to relevant parameters such as formula parameters input in advance, the variable-frequency speed regulator 22 controls the working state of the motor 5, the motor works at a set rotating speed to drive the stirring tank 3 to rotate and stir the asphalt raw materials, and during discharging, the motor 5 and the stirring tank 3 only need to be controlled to rotate reversely, so that the asphalt is taken out under the action of the helical blades 15;

the PLC 24 can realize the regulation of the I-level, II-level and III-level rotating speeds and the reverse rotation of the motor 5 according to preset parameters.

In this embodiment, still include the gyro wheel 9 to agitator tank 3 direction and reduce friction, gyro wheel 9 is installed on agitator 6, and the contact of wheel face and 3 lateral surfaces of agitator tank, gyro wheel 9 support agitator tank 3, and at agitator tank 3 rotatory in-process, the while leads agitator tank 3, reduces friction.

Example 2

On the basis of the embodiment 1, the stirring device further comprises a hot oil tank 8 arranged on the stirring frame 6 and a hot oil pump 26 for realizing hot oil circulation, wherein the stirring tank 3 comprises a stirring inner layer 3-2 and a stirring outer layer wrapped outside the stirring inner layer 3-2, a first interlayer 10 is arranged between the stirring inner layer 3-2 and the stirring outer layer 3-1, a liquid outlet of the hot oil pump 26 is communicated with a connecting pipeline, the connecting pipeline is communicated with the first interlayer 10 through a hot oil sleeve 11, and a hot oil pipe 23 communicated with the hot oil pump 26 is installed on one side of the hot oil pump 26.

The hot oil tank 8 comprises an inner tank 8-1 and an outer tank 8-2 wrapped outside the inner tank 8-1, a second interlayer 27 is arranged between the inner tank 8-1 and the outer tank 8-2, and a heating wire 29 is arranged in the second interlayer 27.

Principle of operation

The PLC 24 controls the heating wire 29 to generate heat to heat oil in the hot oil tank 8, the temperature of the hot oil is guaranteed, hot oil is pumped into the first interlayer 10 through the hot oil pump 26 in a circulating mode, the hot oil is filled in the first interlayer 10, the stirring inner layer 3-2 is wrapped, the temperature in the stirring tank 3 is increased and preserved, and asphalt is prevented from being solidified in the stirring process.

Example 3

On embodiment 2's basis, still including the feed mechanism who is used for the material loading, including frame 12, conveyor 13, feeding funnel 2 and guide rail 14, the whole slope of frame 12 sets up agitator tank 3 front side, and the whole slope of conveyor 13 is installed in frame 12, keeps being connected with the conveyor motor 21 who installs in frame 12, guide rail 14 is installed in frame 12, the guide rail 14 lower part with conveyor 13 is parallel, the upper portion level, feeding funnel 2 one side lower part all rotates with upper portion and installs the connecting axle, respectively with conveyor 13, guide rail 14 keep being connected, 14 horizontal segment below of guide rail is provided with and is used for the feeder hopper 7 in the leading-in agitator tank 3 of raw materials.

The protection casing 1 is arranged on the outer side of the feeding mechanism.

The purpose of this setting is avoided the material loading in-process, and the raw materials spills in the feeding funnel 2, pounces the staff.

Still including setting up the play hopper 16 that is used for concentrating the ejection of compact below feeder hopper 7, go out 16 fixed mounting of hopper on stirring frame 6, the fill mouth sets up in 3 material mouths of agitator tank below, goes out 16 pitches of hopper and concentrates the ejection of compact, and too dispersion when avoiding the ejection of compact is not convenient for collect.

Still including setting up baffle box 17 in the hopper 16 below and articulating the extension silo 18 that keeps away from hopper 16 end at baffle box 17, baffle box 17 guides the raw materials ejection of compact, is convenient for guide the raw materials to the collection point, and rotatory extension silo 18 can put down extension silo 18, can change the length of the guide box 17 guide ejection of compact.

Still including realizing adjusting screw 19 and the screw rod cover 20 of baffle box 17 angular adjustment, the baffle box 17 with the stirring frame 6 is articulated, and adjusting screw 19 one end is articulated with the baffle box 17, and screw rod cover 20 cover is established in the adjusting screw 19 outside to with adjusting screw 19 threaded connection, screw rod cover 20 is articulated with the stirring frame, is convenient for adjust the angle of baffle box 17 and the height of discharge end according to the operating mode.

Principle of operation

The conveying motor 21 drives the conveying device 13 to work to drive the feeding hopper 2 to advance, when the feeding hopper 2 advances to the upper part of the guide rail 14, the feeding hopper 2 is gradually turned over, raw materials are poured into the feeding hopper 7 and enter the stirring tank 3, feeding is facilitated, and labor intensity is reduced;

during the ejection of compact, 3 reversals of agitator tank, the pitch ejection of compact to go out in the hopper 16 to from the 16 ejection of compact of hopper to in the baffle box 17, baffle box 17 guides the raw materials ejection of compact, be convenient for guide the raw materials to the collection point, rotatory adjusting screw 19 can adjust the angle of baffle box 17 and the height of discharge end, and rotatory extension silo 18 can put down extension silo 18, can change the length of the 17 guide ejection of compact of baffle box.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A variable speed mixer for asphalt mixture comprises a mixing frame (6), a mixing tank (3), a PLC (programmable logic controller) (24), a variable frequency speed regulator (22) and a motor (5), and is characterized in that; the stirring tank (3) is integrally and obliquely arranged on the stirring frame (6), the motor (5) drives the stirring tank (3) to rotate through the gear transmission mechanism (4), and the inner wall of the stirring tank (3) is provided with a helical blade (15);

the variable-frequency speed regulator (22) is connected with and controls the working frequency of the motor (5), and the PLC (24) is connected with and controls the working state of the variable-frequency speed regulator (22).

2. An asphalt mix variable speed mixer according to claim 1, wherein; the mixer also includes rollers (9) to guide and reduce friction against the mixing tank (3).

3. An asphalt mix variable speed mixer according to claim 1, wherein; the stirrer further comprises a hot oil tank (8) arranged on the stirring frame (6) and a hot oil pump (26) for realizing hot oil circulation, wherein the stirring tank (3) comprises a stirring inner layer (3-2) and a stirring outer layer wrapped outside the stirring inner layer (3-2), a first interlayer (10) is arranged between the stirring inner layer (3-2) and the stirring outer layer (3-1), the hot oil pump (26) is connected with the first interlayer (10) through a hot oil sleeve (11), and a hot oil pipe (23) connected with the hot oil pump (26) is installed on one side of the hot oil pump (26).

4. An asphalt mix variable speed mixer according to claim 3, wherein; the hot oil tank (8) comprises an inner tank (8-1) and an outer tank (8-2) wrapped on the outer side of the inner tank (8-1), a second interlayer (27) is arranged between the inner tank (8-1) and the outer tank (8-2), and heating wires (29) are arranged in the second interlayer (27).

5. An asphalt mixture variable speed mixer according to claim 1, wherein; this mixer is still including the feed mechanism who is used for the material loading, including frame (12), conveyor (13), feeding funnel (2) and guide rail (14), frame (12) whole slope sets up agitator tank (3) front side, and conveyor (13) whole slope is installed in frame (12), keeps being connected with conveyer motor (21) of installing on frame (12), install guide rail (14) in frame (12), guide rail (14) lower part with conveyor (13) are parallel, the upper portion level, feeding funnel (2) one side lower part all rotates with upper portion and installs the connecting axle, respectively with conveyor (13), guide rail (14) keep being connected, guide rail (14) horizontal segment below is provided with and is used for leading-in feeding funnel (7) in agitator tank (3) with the raw materials.

6. An asphalt mixture variable speed mixer according to claim 5, wherein; the outer side of the feeding mechanism is provided with a protective cover (1).

7. An asphalt mix variable speed mixer according to claim 6, wherein; the mixer also comprises a discharge hopper (16) which is arranged below the feed hopper (7) and is used for centralized discharge.

8. An asphalt mixture variable speed mixer according to claim 7, wherein; the stirrer also comprises a guide chute (17) arranged below the discharge hopper (16) and an extension trough (18) hinged to the end, far away from the discharge hopper (16), of the guide chute (17).

9. An asphalt mixture variable speed mixer according to claim 8, wherein; the mixer also comprises an adjusting screw rod (19) and a screw rod sleeve (20) which realize the angle adjustment of the material guide groove (17).