CN115674445A

CN115674445A - Tunnel operation type cement mixer truck

Info

Publication number: CN115674445A
Application number: CN202211361350.1A
Authority: CN
Inventors: 易超; 谢磊
Original assignee: Hubei Sitong Special Purpose Vehicle Co ltd
Current assignee: Hubei Sitong Special Purpose Vehicle Co ltd
Priority date: 2022-11-02
Filing date: 2022-11-02
Publication date: 2023-02-03
Anticipated expiration: 2042-11-02
Also published as: CN115674445B

Abstract

The invention relates to the technical field of engineering machinery, in particular to a tunnel operation type cement mixer truck which comprises a control unit, a power unit, a mixing unit, a feeding unit, a discharging unit and a truck frame. The cement mixer truck is used for transporting cement during tunnel construction; the stirring tank of the stirring truck adopts a split structure, is connected by loosening bolts, is provided with a vent pipe at the joint of each tank body, is connected in series by an air inlet pipe, and is filled with gas; set up by the aeration head at the junction of the internal portion of breather pipe intercommunication jar, will let in during gaseous explosion and scatter the cement that gets into in the pipe, make it produce the bubble in cement, to the angle that explodes the gas pocket on the aeration head, directional internal surface of jar to will explode the gas pocket and set up to the toper gas outlet, thereby increase the production effect of bubble, can also improve gaseous diffusion face, increase the air density of cement and jar internal wall, make its be convenient for the cement and the peeling off of jar body.

Description

Tunnel operation type cement mixer truck

Technical Field

The invention relates to the technical field of engineering machinery, in particular to a tunnel operation type cement mixer truck.

Background

In recent years, people pay more and more attention to ecological development and actively respond to the call for building green ecological cities. Because the cement is frequently used in urban construction, but the cement is fine dust, dust pollution is easily caused to the periphery of transportation in the process of transporting to a construction site, and the life of people is influenced; especially in the environment of tunnel and other environment where air is not circulated, because cement, water, sand and stones are mixed and stirred, a large amount of dust is generated in the mixing and stirring process, thereby affecting construction; therefore, in order to solve the problem of cement, cement plants for producing cement by special machines have been developed, and the mixed cement is produced and transported to the construction site by cement mixing trucks.

Gradually, cement mixer trucks are widely used. The function of the cement mixer is gradually paid attention by people. The cement mixer truck is mainly used for transporting cement, and the stirring is used for preventing solidification, such as the mixer truck in patent CN 111452219A.

However, cement mixer trucks have some disadvantages in some special locations; constructor when tunnel construction, cement mixer pulls in cement, at the in-process that comes in, if meet special circumstances, cement can not in time send appointed cement point to can lead to cement can't in time pour out, cement stops in the agitator tank, and the time is long, just can solidify in the agitator tank of cement mixer.

Because the space in the stirring tank is narrow and small, the cement solidified in the stirring tank is difficult to clean. If the cement in the stirring tank is not completely cleaned, the next use of the stirring truck is influenced; cement mixer in the tunnel, because the stenosis in tunnel, cement mixer can't turn to in the tunnel, can have the difficult problem of pouring the tunnel with the car to can lengthen the dwell time of mixer in the tunnel, further make the cement in the cement mixer jar solidify, thereby increase the washing degree of difficulty of washing the interior cement of mixer jar once more.

For cleaning cement in a stirring tank, the prior art is that water is injected into the stirring tank, cement in a stirring truck is diluted, and the stirring tank is cleaned, but the cleaning method is not thorough, and cement solidified on the inner surface of the stirring tank cannot be cleaned; and a special cement separator is utilized to clean the cement solidified in the cement stirring tank, and the internal space of the cement stirring tank is narrow, so that the operation is inconvenient.

Aiming at the problems that cement cannot be discharged out of a stirring tank in time due to the limited space of the tunnel and the occurrence of special conditions such as vehicle damage and the like in the tunnel, the cement is retained in the stirring tank of the stirring vehicle, and the cement is solidified in the stirring tank; after the mixer truck exits from the tunnel, the mixer tank is a whole, and the inner space is narrow, so that the problem that the cleaning of the set cement is difficult can be solved. In order to solve the problem of processing the set cement in the stirring tank, a tunnel operation type cement stirring vehicle is provided.

Disclosure of Invention

The invention aims to provide a tunnel operation type cement mixer truck to solve the problem of how to treat set cement in a mixing tank.

In order to achieve the purpose, the invention provides the following technical scheme:

a tunnel operation type cement mixer truck comprises a control unit, a power unit, a mixing unit, a feeding unit, a discharging unit and a truck frame, wherein the control unit comprises a main cab and an auxiliary cab, and the main cab and the auxiliary cab are positioned at two ends of the mixer truck; the control unit is used for controlling the motion of the mixer truck; a power unit is arranged at the lower left of the control unit; the power unit is arranged on the frame and provides power for the mixer truck. The power unit is internally provided with an air pump and a motor, and the air pump is used for ventilating the stirring unit; the motor provides power for the stirring tank of the stirring unit, and the motor adopts a forward and reverse rotating motor.

The stirring unit is positioned on the left side of the power unit and used for stirring cement, and comprises a tank body which is of a detachable structure; the tank bodies are connected through bolts, and the bolts are check bolts; the stirring unit further comprises a lifting lug which is fixedly connected to the upper surface of the tank body.

The stirring unit left end is provided with pan feeding unit and ejection of compact unit, the pan feeding unit is located ejection of compact unit's top. The top of the feeding unit is open, and a pipeline at the bottom of the feeding unit is communicated with the inside of the stirring unit and is used for adding cement; the discharging unit is positioned at the outlet of the stirring unit and is connected with the stirring unit through bolts.

A plurality of vent pipes are arranged at the connecting part of the tank body in a linear array manner, and a gas one-way valve is arranged in each vent pipe; the breather pipe communicates with the inside of the tank body. The vent pipe is arranged in the middle of the joint of the two bolts.

Aeration pipe one end joint aeration head, the aeration head is used for refining gas.

The direction of the explosion hole of the aeration head points to the inner surface of the tank body; thereby achieving a greater degree of coverage of air into the cement.

The aeration hole sets up the multilayer along the surface of aeration head, and the different positions of the directional jar body of the direction of giving vent to anger in aeration hole, the angle of exploding the gas pocket improves the diffusion area who lets in gas to the internal surface of jar, increases the air density between cement and the agitator tank inner wall to the stripping of cement and agitator tank inner wall is convenient for.

The stirring unit further comprises a sealing turntable and an air inlet pipe, the sealing turntable comprises a rotating disc, a fixed disc and an annular cavity, the sealing turntable is of an annular structure, the left side of the rotating disc is connected with the tank body through a bolt, the right side of the rotating disc is connected with the fixed disc in a sealing mode through a sealing gasket in a rotating mode, the rotating disc and the fixed disc are internally provided with the annular cavity, the left side of the annular cavity is provided with an air vent, and the right side of the annular cavity is provided with an air inlet; one end of the air inlet pipe is connected with the air vent position of the rotating disc through a bolt, the other end of the air inlet pipe is communicated with the vent pipe, and the joint of the air inlet pipe and the tank body is placed in parallel; the air inlet pipe is connected with the breather pipe in series.

The pressure of air in the vent pipe is kept between 10 and 15 MPa; the shape of the explosion hole is conical, and gas enters the small opening from the large opening and is sprayed out.

The stainless steel material for the aeration head is in contact with cement for a long time, so that the cement contains water, the corrosion effect of the water aeration head is reduced, and the service life of the aeration head is prolonged.

Compared with the prior art, the invention has the following beneficial effects:

1. according to the tunnel operation type cement mixer truck, the driving unit adopts a multi-shaft driving mode and can be suitable for driving chassis with double shafts of 4 multiplied by 2, three shafts of 6 multiplied by 4 and four shafts of 8 multiplied by 4; different driving modes can be adopted for different load-bearing weights; the two front and rear cabs are arranged, so that the two cabs can be utilized to drive in two directions in the environment of one-way driving, such as a tunnel.

2. According to the tunnel operation type cement mixer truck, the mixing tank is of a split structure, is divided into a plurality of parts and is connected through loose bolts; when the agitator tank needs to be cleaned, the agitator tank can be disassembled and cleaned, so that the agitator tank is more convenient to clean and can be cleaned more thoroughly.

3. The air pipes are arranged at the joints of the tank body parts, when cement in the stirring tank cannot be poured out in time, air is introduced into unset cement in the stirring tank, so that air bubbles are generated in the cement, the set cement is looser, and the stirring tank is convenient to clean later; the tail end of the vent pipe is provided with an aeration head, the direction of an aeration hole on the aeration head points to one side of the inner part of the tank body, the angle of the aeration hole is gradually set from a large radial small diameter to a small radial diameter along the radial direction of the aeration head, and the aeration hole is set to be a conical structure; the diffusion area of air is increased, and the diffusion effect is enhanced; and the air density between the cement and the inner wall of the tank body is increased, so that the cement and the tank body can be peeled off conveniently.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the construction of a stirring tank of the present invention;

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

FIG. 4 is a cross-sectional view of a tank connection according to the present invention;

FIG. 5 is a side cross-sectional view of the sealing rotor of the present invention;

FIG. 6 is a cross-sectional view of the present invention;

fig. 7 is a cross-sectional view of an aeration head according to the present invention.

In the figure: 1. a control unit; 11. a main cab; 12. a passenger compartment; 2. a power unit; 21. a motor; 22. an air pump; 3. a stirring unit; 31. sealing the rotary table; 311. rotating the disc; 312. fixing the disc; 313. an annular cavity; 32. an air inlet pipe; 33. a tank body; 34. lifting lugs; 35. a gas check valve; 36. a breather pipe; 37. an aeration head; 371. exploding air holes; 4. a feeding unit; 5. a discharging unit; 6. a vehicle frame.

Detailed Description

Referring to fig. 1 to 7, the invention provides a tunnel operation type cement mixer, which provides the following technical scheme:

the first embodiment is as follows:

a tunnel operation type cement mixer truck comprises a control unit 1, a power unit 2, a mixing unit 3, a feeding unit 4, a discharging unit 5 and a truck frame 6, wherein the control unit 1 comprises a main cab 11 and an auxiliary cab 12, and the main cab 11 and the auxiliary cab 12 are positioned at two ends of the mixer truck; the control unit 1 is used for controlling the motion of the mixer truck; a power unit 2 is arranged at the lower left of the control unit 1; the power unit 2 is arranged on the frame 6, and the power unit 2 provides power for the mixer truck. An air pump 22 and a motor 21 are arranged in the power unit 2, and the air pump 22 is used for ventilating the stirring unit 3; the motor 21 adopts a forward and reverse rotating motor 21, and the forward and reverse motor 21 provides power for the stirring tank of the stirring unit 3. The stirring unit 3 is positioned on the left side of the power unit 2, the stirring unit 3 is used for stirring cement, the stirring unit 3 comprises a tank body 33, and the tank body 33 is of a detachable structure; the tank bodies 33 are connected through bolts, and the bolts are check bolts; the stirring unit 3 further comprises a lifting lug 34, and the lifting lug 34 is fixedly connected to the upper surface of the tank 33. The left end of the stirring unit 3 is provided with a feeding unit 4 and a discharging unit 5, and the feeding unit 4 is positioned above the discharging unit 5.

The top of the feeding unit 4 is opened, and a pipeline at the bottom of the feeding unit 4 is communicated with the inside of the stirring unit 3 and is used for adding cement; the motor 21 is started to drive the stirring tank to rotate forwards, the stirring tank rotates forwards to stir the cement in the stirring tank, and the cement is prevented from solidifying; the discharging unit 5 is positioned at the outlet of the stirring unit 3, and the discharging unit 5 is connected with the stirring unit 3 through bolts.

The driver gets into main driver's cabin 11, transports cement, and cement is added by the top entry of pan feeding unit 4, and power unit 2's motor 21 starts, drives the agitator tank corotation, prevents that cement from solidifying in the agitator tank in the transportation. After a driver sends cement to a designated position, the motor 21 rotates reversely to drive the stirring tank to rotate reversely to discharge the cement from the stirring tank, the cement enters the discharging unit 5, and the cement is sent to the designated position through the discharging unit 5 to finish the transportation of the cement; the driver enters the co-driver's cab 12 and drives the cement mixer out of the tunnel.

A plurality of vent pipes 36 are arranged at the connecting part of the tank body 33 in a linear array, and a gas one-way valve 35 is arranged in each vent pipe 36; the vent pipe 36 communicates with the inside of the tank 33. The vent pipe 36 is arranged in the middle of the joint of the two bolts and is used for communicating the interior of the stirring tank with the air pump 22, the air pump 22 is used for ventilating the vent pipe 36, the vent pipe 36 is used for sending the introduced gas into the interior of the stirring tank, and a check valve in the vent pipe 36 is used for preventing the gas in the tank from flowing backwards.

One end of the air pipe 36 is clamped with the aeration head 37; the direction of the aeration hole 371 of the aeration head 37 points to the inner surface of the tank body 33; the aeration holes are arranged in multiple layers along the outer surface of the aeration head 37, and the air outlet directions of the aeration holes point to different positions of the tank body 33.

The gas in the vent pipe 36 passes through the aeration head 37, and the introduced gas is dispersed into the stirring tank, so that the introduced gas forms a plurality of small bubbles in the cement. Because the air outlet direction of the air vent 371 points to the inner surface of the tank body 33, the introduced air enters the cement along the inner surface of the tank body 33, thereby realizing the coverage degree of the larger air entering the cement; the diffusion area of the introduced gas is increased, and the air density between the cement and the inner wall of the stirring tank is increased, so that the cement and the inner wall of the stirring tank can be conveniently stripped.

The stirring unit 3 further comprises a sealing turntable 31 and an air inlet pipe 32, the sealing turntable 31 comprises a rotating disc 311, a fixed disc 312 and an annular cavity 313, the sealing turntable 31 is of an annular structure, the left side of the rotating disc 311 is in bolted connection with the tank body 33, the right side of the rotating disc 311 is in sealed and rotating connection with the fixed disc 312 through a sealing gasket, the annular cavity 313 is arranged inside the rotating disc 311 and the fixed disc 312, an air vent is arranged on the left side of the annular cavity 313, and an air inlet is arranged on the right side of the annular cavity 313; one end of the air inlet pipe 32 is connected with the air hole position of the rotating disc 311 through a bolt, the other end of the air inlet pipe 32 is communicated with a vent pipe 36, and the joint of the air inlet pipe 32 and the tank body 33 is placed in parallel; the intake conduit 32 is connected in series with a vent conduit 36 and vents the vent conduit 36.

The air pressure in the vent tube 36 is maintained at 12 mpa; the shape of the explosion hole 371 is conical, and gas enters a small opening from a large opening and is sprayed out; the air output from the air hole 371 at the aeration head 37 can be ejected for a longer distance, and the coverage of the air is further increased.

The stainless steel material for the aeration head 37 is in contact with cement for a long time, so that the cement contains water, the erosion effect of the water aeration head 37 is reduced, and the service life of the aeration head 37 is prolonged.

The working principle is as follows: a cement mixer truck for tunnel operation, wherein a driver enters a main cab 11 to transport cement into a tunnel. In the tunnel, cement in the mixer truck cannot be poured out due to special reasons such as vehicle accidents, so that the cement needs to stay in the mixer truck. A driver enters the assistant cab 12, an air pump 22 on the upper portion of the mixer truck is turned on, the air pump ventilates air to the sealed rotary table, the air enters the air inlet pipe 32 through the annular cavity 313 in the sealed rotary table 31, enters the air inlet pipe 36 through the air inlet pipe 32, flows through the air one-way valve 35 in the air inlet pipe 36, then enters the aeration head 37, and is injected into cement along the inner wall of the tank body 33 through the explosion holes 371 in the aeration head 37 to form bubbles in the cement. Because the air hole 371 is conical and the angle is towards the inner wall, more air bubbles can be generated in the cement; more air bubbles are contained in the cement to be solidified, so that the cement is looser, and the cement in the stirring tank is more convenient to clean after being driven out of the tunnel.

The driver drives the cement mixer out of the tunnel at the co-driver's cabin 12, because it needs to clear up to leave remaining cement in the agitator tank, so loosen the bolt of agitator tank two places, with the agitator tank split, because contain many bubbles in the cement for clear up the inside fixed cement of agitator tank is lighter, and the agitator tank part that will clear up is bolted connection fastening once more, for next use preparation.

The foregoing shows and describes the general principles, principal features and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a tunnel operation class cement trucd mixer, includes the control unit (1), power pack (2), stirring unit (3), pan feeding unit (4), ejection of compact unit (5) and frame (6), its characterized in that: the control unit (1) comprises a main cab (11) and a rear cab (12), wherein the main cab (11) and the rear cab (12) are positioned at two ends of the mixer truck; the control unit (1) is used for controlling the motion of the mixer truck;

a power unit (2) is arranged at the lower left of the control unit (1); the power unit (2) is arranged on the frame (6), and the power unit (2) provides power for the mixer truck;

the stirring unit (3) is positioned on the left side of the power unit (2), the stirring unit (3) is used for stirring cement, the stirring unit (3) comprises a tank body (33), and the tank body (33) is of a detachable structure;

stirring unit (3) left end is provided with pan feeding unit (4) and discharge unit (5), pan feeding unit (4) are located the top of discharge unit (5).

2. The cement mixer truck for tunnel operation according to claim 1, wherein: the tank bodies (33) are connected through bolts, and the bolts connected through the bolts are anti-loosening bolts; the stirring unit (3) further comprises a lifting lug (34), and the lifting lug (34) is fixedly connected to the upper surface of the tank body (33).

3. A tunnel operation type cement mixer truck according to claim 2, characterized in that: a plurality of vent pipes (36) are arranged at the connecting part of the tank body (33) in a linear array manner, and a gas one-way valve (35) is arranged in each vent pipe (36); the vent pipe (36) is communicated with the inside of the tank body (33).

4. The tunnel operation type cement mixer truck according to claim 3, characterized in that: one end of the air pipe (36) is fixedly connected with an aeration head (37), and the aeration head (37) is used for refining gas.

5. The tunnel operation type cement mixer truck according to claim 4, characterized in that: the direction of the aeration hole (371) of the aeration head (37) points to the inner surface of the tank body (33).

6. The cement mixer truck for tunnel operation according to claim 5, wherein: the aeration holes (371) are arranged in multiple layers along the outer surface of the aeration head (37), and the air outlet directions of the aeration holes (371) point to different positions of the tank body (33).

7. A tunnel operation type cement mixer truck according to claim 3, wherein: the stirring unit (3) further comprises a sealing turntable (31) and an air inlet pipe (32), the sealing turntable (31) comprises a rotating disc (311), a fixed disc (312) and an annular cavity (313), the sealing turntable (31) is of an annular structure, the left side of the rotating disc (311) is fixedly connected with the tank body (33), the right side of the rotating disc (311) is rotatably connected with the fixed disc (312), an annular cavity (313) is arranged inside the rotating disc (311) and the fixed disc (312), a vent hole is arranged on the left side of the annular cavity (313), and an air inlet hole is arranged on the right side of the annular cavity (313); one end of the air inlet pipe (32) is fixedly connected with the position of the vent hole of the rotating disc (311), the other end of the air inlet pipe (32) is communicated with the vent pipe (36), and the joint of the air inlet pipe (32) and the tank body (33) is placed in parallel.

8. The tunnel operation type cement mixer truck according to claim 3, characterized in that: the air pressure in the vent pipe (36) is maintained at 10-15 MPa.

9. The cement mixer truck for tunnel operation according to claim 6, wherein: the aeration holes (371) are conical, and gas enters the small opening from the large opening and is sprayed out.

10. A tunnel operation type cement mixer truck according to claim 4, characterized in that: the aeration head (37) is made of stainless steel material.