1. The utility model provides a fly ash mortar compounding device for tunnel construction, includes compounding box (1) and sets up the mortar feed mechanism on compounding box (1) lateral wall, be provided with screening hopper (2) on compounding box (1) roof, its characterized in that, seted up on compounding box (1) lateral wall inlet port (7) and mortar feed mechanism and be located inlet port (7) department and be connected with it, screening hopper (2) are including installation feeding frame (3) of port orientation and arc sieve (4) that are located the bottom, and installation feeding frame (3) are inside hollow structure and arc sieve (4) both sides sideslip move and stretch into installation feeding frame (3), and compounding box (1) is inside to be provided with lower lever axle (13) that are located screening hopper (2) lower lateral part and to be located upper lever axle (19) on arc sieve (4) axis, be fixed with roll-in support (20) on upper lever axle (19) lateral wall and roll-in support (20) bottom and install the powder feed mechanism The crushing and pressing roller assembly comprises crushing and pressing rollers (21), a driving gear (17) and a knocking swing frame (14) are installed on a lower rod shaft (13), knocking rollers (15) are installed at two ends of the knocking swing frame (14), the driving gear (17) is meshed with an upper rod shaft (19) arranged on the outer wall of an arc-shaped sieve plate (4), the upper rod shaft (19) and the lower rod shaft (13) are driven by a power mechanism arranged on the outer wall of a mixing box body (1) to rotate forwards and backwards in opposite directions, two push-pull rods (16) are hinged to the side wall of the knocking swing frame (14), and the two push-pull rods (16) are connected with a stirring mechanism arranged at the bottom of the mixing box body (1.

2. The fly ash mortar mixing device for tunnel construction according to claim 1, wherein the stirring mechanism comprises a rotating rod shaft (11) parallel to the axis of the lower rod shaft (13) and a stirring swing frame (12) fixed on the rotating rod shaft (11), two ends of the rotating rod shaft (11) are rotatably connected with the inner wall of the mixing box body (1) through bearing seats (28), the stirring swing frame (12) is provided with a plurality of stirring rod shafts (34), the stirring rod shafts (34) are provided with a plurality of stirring rods (27), and the bottom ends of the two push-pull rods (16) are hinged to the rod wall of the stirring swing frame (12).

3. The fly ash mortar mixing device for tunnel construction according to claim 1, wherein the power mechanism comprises a push bar-shaped frame (25), a power motor (22) arranged on the outer wall of the mixing box body (1) and two transverse racks (23) transversely sliding on the mixing box body (1), an output shaft of the power motor (22) is provided with an L-shaped deflector rod (26), the end parts of the L-shaped deflector rod (26) extend into the push bar-shaped frame (25), the two transverse racks (23) are arranged between an upper rod shaft (19) and a lower rod shaft (13), the end parts of the two transverse racks (23) are fixedly connected with the push bar-shaped frame (25), the end parts of the upper rod shaft (19) and the lower rod shaft (13) are respectively provided with a rotating gear (24), and the two rotating gears (24) are respectively correspondingly engaged with the two transverse racks (23).

4. The fly ash mortar mixing device for tunnel construction according to claim 1, characterized in that, mortar feed mechanism is including carrying auger (6) and two thick liquids jar (5), carries auger (6) one end to connect in inlet port (7) and the other end is provided with defeated material motor (8) that drives it and carry thick liquids, carries auger (6) bottom to fix at inlet port (7) lateral wall through upper bracket (9), and two thick liquids jar (5) set up and are linked together at carrying auger (6) upper end and its bottom and carry auger (6).

5. The fly ash mortar mixing device for tunnel construction according to any one of claims 1 to 4, wherein the side wall of the bottom of the mixing box body (1) is further provided with a discharge port (10), the bottom wall of the mixing box body (1) is of an inclined structure, and the bottom end of the mixing box body is located at the discharge port (10).

6. The fly ash mortar mixing device for tunnel construction according to claim 5, characterized in that a bottom plate (29) is further arranged at the bottom of the mixing box body (1), and the bottom plate (29) is fixedly connected with the bottom of the mixing box body (1) through two support frames (30).

7. The fly ash mortar mixing device for tunnel construction according to claim 6, characterized in that a discharge channel (31) is arranged at the discharge port (10), the upper end of the discharge channel (31) is connected with the discharge port (10) through a telescopic corrugated pipe (32), an adjusting cylinder (33) with one end hinged with the support frame (30) is arranged on the support frame (30), and the other end of the adjusting cylinder (33) is hinged with the side wall of the discharge channel (31).

Background

With the development of urban rail transit construction in China, more and more cities begin to develop subway construction, and subways become an important mode in the daily travel process of people. The fly ash mortar is a common material in the construction process of the subway tunnel shield, and according to the special design of the subway shield project, the 28d strength of the mortar meets the technical requirements of not more than 1.5MPa, the consistency of 70-90mm, the water retention rate of not less than 88 percent and the like. The fly ash mortar is prepared by mixing solid raw materials such as fly ash, cement and the like with tap water.

The fly ash mortar is mixed through the mixing device, the inevitable some lump particles and the feeding materials are concentrated aggregates in the fly ash, and the fly ash mortar is easy to agglomerate when being mixed with the mortar and water, so that the mixing uniformity and effect are greatly influenced, and further the construction of a tunnel is influenced.

Disclosure of Invention

The invention aims to provide a fly ash mortar mixing device for tunnel construction, so as to achieve the aim.

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

a fly ash mortar mixing device for tunnel construction comprises a mixing box body and a mortar feeding mechanism arranged on the side wall of the mixing box body, wherein a screening hopper is arranged on the top wall of the mixing box body, a feeding port is formed in the side wall of the mixing box body, the mortar feeding mechanism is positioned at the feeding port and connected with the feeding port, the screening hopper comprises an installation feeding frame with a port facing towards and an arc-shaped sieve plate positioned at the bottom, the installation feeding frame is of a hollow structure, two sides of the arc-shaped sieve plate slide and extend into the installation feeding frame, a lower rod shaft positioned at the lower side part of the screening hopper and an upper rod shaft positioned on the axis of the arc-shaped sieve plate are arranged in the mixing box body, a rolling support is fixed on the side wall of the upper rod shaft, a crushing compression roller is arranged at the bottom of the rolling support, a driving gear and a knocking swing frame are arranged on the lower rod shaft, knocking rollers are arranged at two ends of the knocking swing frame, the driving gear is meshed with an upper rod shaft arranged on the outer wall of the arc-shaped sieve plate, the upper rod shaft and a lower rod shaft are driven by a power mechanism arranged on the outer wall of the mixing box body to rotate forwards and backwards, the rotating directions of the upper rod shaft and the lower rod shaft are opposite, and two push-pull rods are hinged to the side wall of the knocking swing frame and connected with a stirring mechanism arranged at the bottom of the mixing box body.

On the basis of the technical scheme, the invention also provides the following optional technical scheme:

in one alternative: the stirring mechanism comprises a rotating rod shaft parallel to the axis of the lower rod shaft and a stirring swing frame fixed on the rotating rod shaft, two ends of the rotating rod shaft are rotatably connected with the inner wall of the mixing box body through bearing seats, a plurality of stirring rod shafts are arranged on the stirring swing frame, a plurality of stirring rods are mounted on the stirring rod shafts, and bottom end parts of the two push-pull rods are hinged to rod walls of the stirring swing frame.

In one alternative: the power mechanism comprises a pushing bar-shaped frame, a power motor and two transverse racks, the power motor is arranged on the outer wall of the mixing box body, the transverse racks slide transversely on the mixing box body, an L-shaped driving lever is arranged on an output shaft of the power motor, the end portion of the L-shaped driving lever extends into the pushing bar-shaped frame, the two transverse racks are fixedly connected between an upper rod shaft and a lower rod shaft, the end portions of the two transverse racks are fixedly connected with the pushing bar-shaped frame, and rotating gears are arranged at the end portions of the upper rod shaft and the lower rod shaft and are respectively correspondingly meshed with the two transverse racks.

In one alternative: mortar feed mechanism is including carrying auger and two thick liquids jar, carries auger one end to connect and is provided with the defeated material motor of ordering about its transport thick liquids in feed port and the other end, carries the auger bottom to fix at the feed port lateral wall through the upper bracket, and two thick liquids jar settings are linked together with carrying the auger at carrying auger upper end and its bottom.

In one alternative: still be provided with the discharge port on the compounding bottom of the case portion lateral wall, compounding bottom wall of the case portion is the inclined plane structure and its bottom end position is in discharge port department.

In one alternative: the bottom of the mixing box body is also provided with a bottom plate which is fixedly connected with the bottom of the mixing box body through two support frames.

In one alternative: the discharge port department is provided with discharge passage and the discharge passage upper end is connected with discharge port through flexible bellows, be equipped with one end articulated air cylinder with it on the support frame, the air cylinder other end is articulated with the discharge passage lateral wall.

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

in the device, the rolling support and the crushing press roller on the upper rod shaft can be driven to rotate by the forward and reverse rotation of the upper rod shaft, the crushing press roller can roll and crush the fly ash particles in the screening hopper, and the crushed fly ash falls through sieve pores of the arc-shaped rack and then is mixed with mortar at the bottom of the mixing box under the action of the stirring mechanism, so that the influence of the particles or blocky fly ash and the mortar on the mixing effect can be avoided; the lower rod shaft rotates positively and negatively to drive the driving gear on the lower rod shaft to rotate and knock the swing frame to swing, the driving gear enables the arc-shaped rack to swing in a reciprocating rotation mode around the upper rod shaft through the meshing with the inner core of the arc-shaped rack, so that the fly ash passing through sieve holes of the arc-shaped rack can be thrown to two sides, the fly ash is scattered and falls to increase the uniformity of mixing with mortar, and the swinging of the knock swing frame can knock vibration on the outer wall of the arc-shaped rack through the knock roller to enable the fly ash clamped in the sieve holes of the arc-shaped rack to fall to avoid the problem of blockage. The invention has simple structure, pulverizes the fly ash before mixing, swings, disperses and falls, effectively increases the mixing effect, knocks the screen to avoid blockage, and is convenient to operate by linkage control of stirring, pulverizing, swinging and knocking, and has stronger practicability.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the power mechanism of the present invention.

Fig. 3 is a schematic view of the structure of the stirring mechanism of the present invention.

Notations for reference numerals: the device comprises a mixing box body 1, a screening hopper 2, an installation feeding frame 3, an arc-shaped screen plate 4, a slurry tank 5, a conveying auger 6, a feeding port 7, a material conveying motor 8, an upper bracket 9, a discharging port 10, a rotating rod shaft 11, a stirring swing frame 12, a lower rod shaft 13, a knocking swing frame 14, a knocking roller 15, a push-pull rod 16, a driving gear 17, an arc-shaped rack 18, an upper rod shaft 19, a rolling support 20, a crushing compression roller 21, a power motor 22, a transverse rack 23, a rotating gear 24, a pushing strip-shaped frame 25, an L-shaped deflector rod 26, a stirring rod 27, a bearing seat 28, a bottom plate 29, a support frame 30, a discharging channel 31, a telescopic corrugated pipe 32, an adjusting cylinder 33 and a stirring rod shaft 34.

Detailed Description

The present invention will be described in detail with reference to the following embodiments, wherein like or similar elements are designated by like reference numerals throughout the several views, and wherein the shape, thickness or height of the various elements may be expanded or reduced in practice. The examples are given solely for the purpose of illustration and are not intended to limit the scope of the invention. Any obvious modifications or variations can be made to the present invention without departing from the spirit or scope of the present invention.

Example 1

Referring to fig. 1 to 3, in the embodiment of the invention, a fly ash mortar mixing device for tunnel construction includes a mixing box 1 and a mortar feeding mechanism disposed on a side wall of the mixing box 1, a screening hopper 2 is disposed on a top wall of the mixing box 1, a feeding port 7 is disposed on the side wall of the mixing box 1, the mortar feeding mechanism is located at the feeding port 7 and connected to the feeding port 7, the screening hopper 2 includes an installation feeding frame 3 with a facing port and an arc-shaped screen plate 4 located at a bottom, the installation feeding frame 3 is a hollow structure, two sides of the arc-shaped screen plate 4 slide and extend into the installation feeding frame 3, a lower rod shaft 13 located at a lower side portion of the screening hopper 2 and an upper rod shaft 19 located on an axis of the arc-shaped screen plate 4 are disposed inside the mixing box 1, a rolling support 20 is fixed on a side wall of the upper rod shaft 19, and a crushing roller 21 is mounted at the bottom of the rolling support 20, the lower rod shaft 13 is provided with a driving gear 17 and a knocking swing frame 14, both ends of the knocking swing frame 14 are provided with knocking rollers 15, the driving gear 17 is meshed with an upper rod shaft 19 arranged on the outer wall of the arc-shaped sieve plate 4, the upper rod shaft 19 and the lower rod shaft 13 are driven by a power mechanism arranged on the outer wall of the mixing box body 1 to rotate forwards and reversely, the rotating directions of the upper rod shaft 19 and the lower rod shaft 13 are opposite, two push-pull rods 16 are hinged to the side wall of the knocking swing frame 14, and the two push-pull rods 16 are connected with a stirring mechanism arranged at the bottom of the mixing box body 1;

when the mortar mixing box is used, mortar enters the mixing box body 1 from the feeding port 7 under the driving of the mortar feeding mechanism, fly ash firstly enters the screening hopper 2, the power mechanism drives the upper rod shaft 19 and the lower rod shaft 13 to rotate positively and negatively, the rolling support 20 and the crushing press roller 21 on the upper rod shaft 19 are driven to rotate by positive and negative rotation, the crushing press roller 21 rolls and crushes fly ash particles in the screening hopper 2, and the crushed fly ash falls through sieve holes of the arc-shaped rack 18 and then is mixed with the mortar at the bottom of the mixing box body 1 under the action of the stirring mechanism, so that the influence of the particles or blocky fly ash and the mortar on the mixing effect can be avoided; the lower rod shaft 13 rotates positively and negatively to drive the driving gear 17 on the lower rod shaft to rotate and knock the swing frame 14 to swing, the driving gear 17 is meshed with the inner core of the arc-shaped rack 18 to enable the arc-shaped rack 18 to swing in a reciprocating rotation mode around the upper rod shaft 19, so that the fly ash passing through the sieve holes of the arc-shaped rack can be swung to two sides, the fly ash is dispersed and falls to increase the uniformity of mixing with mortar, and the knocking roller 15 is used for knocking and vibrating the outer wall of the arc-shaped rack 18 in the swinging frame 14 to enable the fly ash clamped in the sieve holes of the arc-shaped rack 18 to fall to avoid the;

the stirring mechanism comprises a rotating rod shaft 11 parallel to the axis of a lower rod shaft 13 and a stirring swing frame 12 fixed on the rotating rod shaft 11, two ends of the rotating rod shaft 11 are rotatably connected with the inner wall of the mixing box body 1 through bearing seats 28, a plurality of stirring rod shafts 34 are arranged on the stirring swing frame 12, a plurality of stirring rods 27 are arranged on the stirring rod shafts 34, the bottom ends of two push-pull rods 16 are hinged with the rod wall of the stirring swing frame 12, and the stirring swing frame 12 swings through the push-pull of the push-pull rods 16 while the stirring swing frame 14 swings through knocking, so that mortar and fly ash are stirred by the stirring rod shafts 34 and the stirring rods 27 on the stirring swing frame;

the power mechanism comprises a pushing bar-shaped frame 25, a power motor 22 arranged on the outer wall of the mixing box body 1 and two transverse racks 23 sliding transversely on the mixing box body 1, an L-shaped deflector rod 26 is arranged on an output shaft of the power motor 22, the end parts of the L-shaped deflector rod 26 extend into the pushing bar-shaped frame 25, the two transverse racks 23 are arranged between the upper rod shaft 19 and the lower rod shaft 13, the end parts of the two transverse racks 23 are fixedly connected with the pushing bar-shaped frame 25, the end parts of the upper rod shaft 19 and the lower rod shaft 13 are respectively provided with a rotating gear 24, and the two rotating gears 24 are respectively correspondingly meshed with the two transverse racks 23; the L-shaped deflector rod 26 is driven to rotate by the power motor 22, the L-shaped deflector rod 26 can pull the push bar-shaped frame 25 to transversely reciprocate, and further the transverse racks 23 are driven to transversely reciprocate, the two transverse racks 23 drive the upper rod shaft 19 and the lower rod shaft 13 to rotate positively and negatively through meshing with the rotating gear 24, and the rotating directions of the lower rod shaft 13 and the upper rod shaft 19 are opposite because the two transverse racks 23 are between the upper rod shaft 19 and the lower rod shaft 13;

the mortar feeding mechanism comprises a conveying auger 6 and two mortar tanks 5, one end of the conveying auger 6 is connected to a feeding port 7, the other end of the conveying auger 6 is provided with a material conveying motor 8 for driving the conveying auger to convey mortar, the bottom of the conveying auger 6 is fixed on the side wall of the feeding port 7 through an upper bracket 9, the two mortar tanks 5 are arranged at the upper end part of the conveying auger 6, and the bottom of the two mortar tanks is communicated with the conveying auger 6; the slurry in the slurry tank 5 falls into the conveying auger 6 from the bottom of the slurry tank, and the conveying auger 6 conveys the slurry into the mixing box body 1 from the feeding port 7 under the driving of the material conveying motor 8; thereby facilitating the control of feeding;

a discharge port 10 is further formed in the side wall of the bottom of the mixing box body 1, the bottom wall of the mixing box body 1 is of an inclined plane structure, and the bottom end portion of the mixing box body is located at the discharge port 10 so as to discharge mixed materials;

the bottom of the mixing box body 1 is also provided with a bottom plate 29, and the bottom plate 29 is fixedly connected with the bottom of the mixing box body 1 through two support frames 30 so as to increase the placing stability of the device.

Example 2

Referring to fig. 1, the embodiment of the invention is different from embodiment 1 in that: discharge port 10 department is provided with discharge channel 31 and discharge channel 31 upper end is connected with discharge port 10 through flexible bellows 32, be equipped with one end articulated adjusting cylinder 33 with it on the support frame 30, the adjusting cylinder 33 other end is articulated with discharge channel 31 lateral wall, and discharge channel 31 sets up the guide of being convenient for discharged material transport, and adjusting cylinder 33's flexible orientation that can adjust discharge channel 31 lower extreme, and then is convenient for guide the material to required position.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.