CN112196274A

CN112196274A - Conveying screw of spiral concrete sprayer for building construction

Info

Publication number: CN112196274A
Application number: CN202011000360.3A
Authority: CN
Inventors: 李诗义
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-01-08

Abstract

The invention discloses a conveying screw of a spiral concrete sprayer for building construction, which comprises a screw body, wherein the screw body comprises a first screw auger, a second screw auger, a negative pressure alignment connector and a short shaft, and one end of the first screw auger is connected with one end of the second screw auger through the negative pressure alignment connector. According to the invention, the whole conveying auger comprises two-end spiral augers, a first spiral auger and a second spiral auger, the first spiral auger is connected with the second spiral auger through a negative pressure alignment connector, the other end of the first spiral auger is connected with the negative pressure alignment connector, the three components form a complete conveying auger, the pitch of a spiral blade on the first spiral auger is smaller than that of the spiral blade on the second spiral auger, the first spiral auger is arranged close to the air-closing section, the material density between the spiral blades of the first spiral auger with small pitch is large, the function of blocking the air leakage gap of the air-closing section is realized, the injection pressure of the injection machine is improved, and the lift is ensured.

Description

Conveying screw of spiral concrete sprayer for building construction

Technical Field

The invention relates to the technical field of building construction sprayers, in particular to a conveying screw of a spiral concrete sprayer for building construction.

Background

The spiral concrete sprayer is fed by a spiral feeder, materials enter a material conveying pipe through a material column air-blocking section, the air-blocking section is a gradually expanding pipe with the through-flow section gradually increasing along the conveying direction, compressed air is introduced at the discharge end of the gradually expanding pipe, and due to the action of an air cushion, the materials are easy to form continuous material columns in the gradually expanding pipe, so that the feed end of the air-blocking section is sealed, and the back wind is prevented; at the discharge end of the air-blocking section, the material column is continuously broken up by compressed air to form a gas-material mixed flow which is blown into the material conveying pipe, water is added near the spray head for spraying, wherein the feeding of the screw feeder is used for conveying the raw materials to the air-blocking section by utilizing the rotation of the conveying auger;

at present, the phenomenon of air leakage at the air-closed section is difficult to avoid, so that the injection pressure of an injection machine is insufficient, and the injection lift is influenced; and the conveying screw contacts the concrete raw material for a long time, particularly, a part of the spiral blade close to one end of the air-blocking section is seriously abraded, the whole conveying screw needs to be replaced after being damaged, the replacement operation is inconvenient, and the replaced conveying screw conveyer is generally scrapped, so that waste is caused.

Therefore, the invention provides a conveying screw of a spiral concrete sprayer for building construction.

Disclosure of Invention

The invention aims to: in order to solve the problems mentioned in the background art, a conveying screw of a spiral concrete sprayer for building construction is provided.

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

the utility model provides a construction is with spiral concrete sprayer's transport screw, includes the spiral body, the spiral body includes that spiral auger one, spiral auger two, negative pressure are adjusted connector and minor axis well, the one end of spiral auger one is adjusted connector and spiral auger two one end through the negative pressure and is connected well, the other end of spiral auger one is adjusted connector and minor axis through the negative pressure and is connected well, the negative pressure is adjusted the connector well and is included position sleeve, conical ring shape gum cover, traveller and spliced pole well, the traveller cover is established at the both ends in the position sleeve, the fixed adapter sleeve that is provided with the axle center distribution near the one end of oral area on the traveller, the oral area of adapter sleeve is provided with the cross-section and is the circular shape ring circle, conical ring shape gum cover is the fixed both ends that set up in the position sleeve of symmetric distribution, the inner hole wall of conical ring shape, the utility model discloses a rubber air lock, including spliced pole, bell mouth shape, annular limiting plate, locating hole, bell mouth shape, annular limiting plate, the interior table wall of locating sleeve just is located and fixes being provided with between conical ring shape gum cover and the traveller, heavy groove is seted up to the one end of spliced pole, the ring channel that distributes with the axle center is seted up to the bottom of heavy groove, and the oral area cross-section of this ring channel is outwards horn mouth shape and uses with the cooperation of annular ring, the locating hole of intercommunication ring channel is seted up to the outward appearance wall of spliced.

As a further description of the above technical solution:

the outer diameters of auger shafts on the first spiral auger and the second spiral auger are the same as the outer diameters of the negative pressure alignment connector and the short shaft.

As a further description of the above technical solution:

the other end of the connecting column is provided with a limit column which is detachably connected with the auger shaft on the first spiral auger and the auger shaft on the second spiral auger and the short shaft.

As a further description of the above technical solution:

the middle part of traveller runs through and is provided with square column, the quad slit that uses with the one end cooperation of square column is seted up in the middle part of sink bottom.

As a further description of the above technical solution:

the negative pressure is adjusted the connector well and is still included the drive shaft, the exterior wall of position sleeve is seted up and drive shaft normal running fit's connecting hole, the one end that lies in the position sleeve in the drive shaft is provided with the L type and dials the board, the other end of square post is fixed and is provided with L type limiting plate, and the drive shaft folk prescription is rotatory 80 degrees and is dialled the cooperation of board and L type limiting plate and drive two square post opposite motion in proper order.

As a further description of the above technical solution:

the L-shaped shifting plate and the shifting shaft distributed in parallel in the axial direction of the driving shaft are rotatably connected with an eccentric rolling sleeve, and a torsion spring is arranged between the eccentric rolling sleeve and the shifting shaft.

In summary, due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, the whole conveying auger comprises two-end spiral augers, a first spiral auger and a second spiral auger, the first spiral auger is connected with the second spiral auger through a negative pressure alignment connector, the other end of the first spiral auger is connected with the negative pressure alignment connector, the three components form a complete conveying auger, the pitch of a spiral blade on the first spiral auger is smaller than that of the spiral blade on the second spiral auger, the first spiral auger is arranged close to the air-closing section, the material density between the spiral blades of the first spiral auger with small pitch is large, the function of blocking the air leakage gap of the air-closing section is realized, the injection pressure of the injection machine is improved, and the lift is ensured.

2. According to the invention, the negative pressure alignment connector comprises a positioning sleeve, a conical annular rubber sleeve, a sliding column and a connecting column, wherein the sliding column is arranged at two ends in the positioning sleeve and connected with the positioning sleeve through the conical annular rubber sleeve, a connecting sleeve is arranged at one side of the sliding column, an annular ring is arranged at the opening part of the connecting sleeve, a sunken groove matched with the annular ring in a negative pressure mode is formed in one side of the connecting column, and the coaxial fixed connection and the reliable fixing can be realized through negative pressure fixing.

3. According to the invention, the square column penetrates through the middle part of the sliding column, the square hole matched with one end of the square column is formed in the middle part of the bottom of the sinking groove, after the positioning sleeve and the connecting column are coaxially distributed and butted, the square column and the square hole are matched to conveniently transmit torque, the positioning sleeve is rotatably arranged on the driving shaft, the L-shaped shifting plate positioned between the two square columns is arranged at one end of the driving shaft, the L-shaped limiting plates are arranged on opposite sides of the two square columns, and the driving shaft rotates to drive the two square columns to oppositely move, so that the positioning sleeve and the connecting column are conveniently detached, and therefore, the first spiral auger is convenient to replace.

Drawings

FIG. 1 is a schematic structural view of the whole conveying screw of a screw type concrete sprayer for building construction according to the present invention;

FIG. 2 is a schematic structural view illustrating the negative pressure of the conveying screw of the spiral concrete sprayer for building construction exploding the alignment connection body;

FIG. 3 is a schematic structural view of a conveying screw of a spiral concrete sprayer for building construction according to the present invention, with a connecting column removed and a driving shaft engaged in FIG. 2;

FIG. 4 is a schematic structural view of the combination of a driving shaft of a conveying screw of the spiral concrete sprayer for building construction and a square column;

fig. 5 is a schematic structural diagram of a top view of fig. 4 of a conveying screw of the spiral concrete sprayer for building construction according to the present invention.

Illustration of the drawings:

1. a spiral body; 11. a first spiral auger; 12. a second spiral auger; 13. the negative pressure is aligned with the connecting body; 131. a positioning sleeve; 1311. an annular limiting plate; 1312. connecting holes; 132. a conical ring-shaped rubber sleeve; 133. a traveler; 1331. connecting sleeves; 13311. an annular ring; 1331. connecting sleeves; 1332. a square column; 13321. an L-shaped limiting plate; 134. connecting columns; 1341. sinking a groove; 13411. an annular groove; 13412. a square hole; 1342. positioning holes; 13421. rubber air blocking; 1343. a limiting column; 135. a drive shaft; 1351. an L-shaped shifting plate; 13511. a shaft is poked; 135111, eccentric roller; 14. a minor axis.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1 and 2, a conveying screw of a spiral concrete sprayer for building construction comprises a screw body 1, wherein the screw body 1 comprises a first screw auger 11, a second screw auger 12, a negative pressure alignment connector 13 and a short shaft 14, one end of the first screw auger 11 is connected with one end of the second screw auger 12 through the negative pressure alignment connector 13, and the other end of the first screw auger 11 is connected with the short shaft 14 through the negative pressure alignment connector 13; in this embodiment, the short shaft 14 and the first spiral auger 11 are close to the air-tight section, wherein the spiral pitch on the first spiral auger 11 is smaller than the spiral pitch on the second spiral auger 12, so as to increase the density of material transportation, thereby preventing the air-tight section from generating a reverse wind phenomenon due to poor sealing effect, further smoothly performing spiral feeding, and further increasing the injection pressure of the injection machine, the negative pressure alignment connector 13 plays a role in connection, the outer diameters of the auger shafts on the first spiral auger 11 and the second spiral auger 12 are the same as those of the negative pressure alignment connector 13 and the short shaft 14, so as not to affect the material transmission and the generation of hardened nodules on the connection part of the concrete raw material, in this embodiment, the negative pressure alignment connector 13 can be conveniently abutted with the first spiral auger 11, the second spiral auger 12 and the short shaft 14, and particularly, the negative pressure connector alignment connector 13 comprises a positioning sleeve 131, The positioning sleeve 131 comprises a conical annular rubber sleeve 132, a sliding column 133 and a connecting column 134, wherein the sliding column 133 is sleeved at two ends in the positioning sleeve 131, the sliding column 133 and the positioning sleeve 131 are in axial sliding fit, and a sliding structure can adopt a common sliding groove and sliding block structure; a coaxially distributed connecting sleeve 1331 is fixedly arranged at one end of the sliding column 133 close to the mouth part, an annular ring 13311 with a circular section is arranged at the mouth part of the connecting sleeve 1331, the conical annular rubber sleeves 132 are symmetrically distributed and fixedly arranged at two ends in the positioning sleeve 131, the inner hole wall of the conical annular rubber sleeve 132 is fixedly connected with the outer periphery of the annular ring 13311, the conical annular rubber sleeve 132 has an elastic deformation function, namely when the connecting sleeve 1331 slides, the conical annular rubber sleeve 132 can enable the connecting sleeve 1331 to be relatively fixed when being immersed in the positioning sleeve 131 and relatively fixed when extending out of the positioning sleeve 131, an annular limiting plate 1311 is fixedly arranged on the inner surface wall of the positioning sleeve 131 and between the conical annular rubber sleeve 132 and the sliding column 133, and when the sliding column 133 slides outwards, the annular limiting plate 1311 plays a limiting role; one end of the connecting post 134 is provided with a sinking groove 1341, the bottom of the sinking groove 1341 is provided with annular grooves 13411 which are coaxially distributed, the mouth section of the annular groove 13411 is outwards flared and is matched with the annular ring 13311 for use, the outer wall of the connecting post 134 is provided with a positioning hole 1342 communicated with the annular groove 13411, a rubber air plug 13421 is fixedly sleeved in the positioning hole 1342, when one end of the positioning sleeve 131 is butted with the connecting post 134, an external air suction needle is used for inserting the rubber air plug 13421 to suck air to the annular groove 13411, because the air between the sinking groove 1341 and the positioning sleeve 131 is reduced to a negative pressure state, at the moment, the conical annular rubber sleeve 132 is converted into outwards convex from inwards concave towards the positioning sleeve 131, the connecting sleeve 1331 is driven to slide outwards and is contacted with the mouth part of the annular groove 13411, the surface wall of the conical annular rubber sleeve 132 is jointed on the inner wall of the sinking groove 1341 along with the increase of the negative pressure, and the annular ring 13311, the diameter of the annular ring 13311 is larger than the groove width of the sinking groove 1341, a rubber pad is bonded on the inner wall of the bell mouth of the annular groove 13411, and at the moment, the annular ring 13311 is fixedly connected with the annular groove 13411, so that the coaxial fixed connection of the positioning sleeve 131 and the connecting column 134 is realized; the other end of the connecting column 134 is provided with a limit column 1343 which is detachably connected with the auger shaft on the first spiral auger 11 and the second spiral auger 12 and the short shaft 14, counter bores can be formed at the connecting ends of the auger shaft on the first spiral auger 11 and the second spiral auger 12 and the short shaft 14, then pin holes are formed in the outer wall of the connecting column, a limit hole is formed in the limit column 1343, and the limit column 1343 is inserted into the counter bores and then connected through a pin shaft.

Example 2

Referring to fig. 2-5, in embodiment 1, a coaxial distribution connection of a first spiral auger 11, a second spiral auger 12, a negative pressure alignment connecting body 13 and a short shaft 14 is realized, but an asynchronous phenomenon easily occurs during the rotation process, the difference between this embodiment and embodiment 1 is that a square column 1332 is arranged in the middle of a sliding column 133 in a penetrating manner, a square hole 13412 used in cooperation with one end of the square column 1332 is arranged in the middle of a bottom of a sinking groove 1341, that is, in the outward movement process of a connecting sleeve 1331 in embodiment 1, the square column 1332 moves outwards and enters the square hole 13412, the square column 1332 and the square hole 13412 cooperate to transmit torque, the negative pressure alignment connecting body 13 further includes a driving shaft 135, a connecting hole which is in rotation fit with the driving shaft 135 is arranged on the outer wall of the positioning sleeve 131, an L-shaped shifting plate 1351 is arranged at one end of the driving shaft 135 located in the positioning sleeve 131, and an L-shaped limiting plate 13321 is fixedly arranged at the other end of, the driving shaft 135 rotates 180 degrees in a single direction, the two square columns 1332 are driven to move oppositely in sequence through the matching of the L-shaped shifting plate 1351 and the L-shaped limiting plate 13321, an inner hexagonal groove or a straight groove can be formed in the outer end of the driving shaft 135, and the connection of an external driving tool is facilitated, so that when the spiral auger 11 needs to be replaced on site, the whole separation can be realized by rotating the driving shaft 135, and the replacement is facilitated; the L-shaped shifting plate 1351 and the shifting shaft 13511 which is axially and parallelly distributed on the driving shaft 135 are rotatably connected with an eccentric rolling sleeve 135111, a torsion spring is arranged between the eccentric rolling sleeve 135111 and the shifting shaft 13511, the eccentric rolling sleeve 135111 has the function of rolling the side plate wall on the L-shaped limiting plate 13321, the eccentric rolling sleeve 135111 can independently realize the axial action of a single sliding column 133, and further can independently disassemble the first spiral auger 11, and can also disassemble the negative pressure alignment connector 13 to increase the disassembly space of the first spiral auger 11.

The working principle is as follows: when the screw conveyor is used, the screw conveyor is assembled to replace the original screw conveyor, the screw conveyor can be assembled on site, or assembled under line and then installed on a jet machine, the principle is described by taking on-site assembly as an example, firstly, the short shaft 14 is installed at one end close to the air-closed section in the screw conveyor cavity, then, one end of the screw conveyor shaft on the screw conveyor II 12 is installed at the other end of the screw conveyor cavity, then, the connecting column 134 is correspondingly installed at two ends of the screw conveyor I11 and the other ends of the short shaft 14 and the screw conveyor II 12, then, the screw conveyor I11 is placed in the screw conveyor cavity, a gap exists between two ends of the screw conveyor I11 and the short shaft 14 and the screw conveyor II 12, at the moment, the positioning sleeve 131 is placed in the gap, the gap between the positioning sleeve 131 and the connecting column 134 is small, at the moment, the external air needle is inserted into the rubber air plug 13421 and is pumped outwards, at the moment, the external air enters the sinking groove 1341 through the small gap 13411, at this time, because the air in the sinking groove 1341 is rapidly reduced to generate negative pressure, at this time, the conical annular rubber sleeve 132 drives the connecting sleeve 1331 to move outwards due to the action of the negative pressure, and then the annular ring 13311 is pressed against the mouth of the annular groove 13411, and so on, to realize the fixed connection of the positioning sleeve 131 and the connecting columns 134 at the two ends.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a construction is with transport spiral of spiral concrete sprayer, includes spiral body (1), its characterized in that, spiral body (1) is including spiral auger one (11), spiral auger two (12), negative pressure are adjusted connector (13) and minor axis (14) well, the one end of spiral auger one (11) is adjusted the one end of connector (13) and spiral auger two (12) well through the negative pressure and is connected, the other end of spiral auger one (11) is adjusted connector (13) and minor axis (14) well through the negative pressure and is connected, the negative pressure is adjusted connector (13) well and is included position sleeve (131), conical ring shape gum cover (132), traveller (133) and spliced pole (134), both ends in position sleeve (131) are established to traveller (133) cover, the one end that is close to the oral area on traveller (133) is fixed be provided with adapter sleeve (1331) that the axle center distributes, the mouth of the connecting sleeve (1331) is provided with an annular ring (13311) with a circular section, the conical ring-shaped rubber sleeves (132) are symmetrically distributed and fixedly arranged at two ends in the positioning sleeve (131), the inner hole wall of the conical annular rubber sleeve (132) is fixedly connected with the outer periphery of the annular ring (13311), an annular limiting plate (1311) is fixedly arranged on the inner surface wall of the positioning sleeve (131) and between the conical annular rubber sleeve (132) and the sliding column (133), one end of the connecting column (134) is provided with a sinking groove (1341), the bottom of the sinking groove (1341) is provided with annular grooves (13411) which are coaxially distributed, the section of the opening of the annular groove (13411) is outwards flared and is matched with the annular ring (13311) for use, the outer wall of the connecting column (134) is provided with a positioning hole (1342) communicated with the annular groove (13411), and a rubber air plug (13421) is fixedly sleeved in the positioning hole (1342).

2. The conveying screw of the spiral concrete sprayer for building construction according to claim 1, wherein the outer diameters of the screw shafts on the first screw auger (11) and the second screw auger (12) are the same as the outer diameters of the negative pressure alignment connector (13) and the short shaft (14).

3. The conveying screw of the spiral concrete sprayer for building construction according to claim 1, wherein a limit post (1343) detachably connected with the auger shaft on the first spiral auger (11) and the second spiral auger (12) and the short shaft (14) is arranged at the other end of the connecting post (134).

4. The conveying screw of a spiral concrete sprayer for building construction according to claim 1, wherein a square column (1332) penetrates through the middle of the sliding column (133), and a square hole (13412) matched with one end of the square column (1332) is formed in the middle of the bottom of the sinking groove (1341).

5. The conveying screw of the spiral concrete sprayer for building construction according to claim 4, wherein the negative pressure alignment connector (13) further comprises a driving shaft (135), the outer wall of the positioning sleeve (131) is provided with a connecting hole (1312) which is in running fit with the driving shaft (135), one end of the driving shaft (135) which is positioned in the positioning sleeve (131) is provided with an L-shaped shifting plate (1351), the other end of the square column (1332) is fixedly provided with an L-shaped limiting plate (13321), and the driving shaft (135) rotates 180 degrees in one direction to drive the two square columns (1332) to move oppositely in sequence through the matching of the L-shaped shifting plate (1351) and the L-shaped limiting plate (13321).

6. The conveying screw of a spiral concrete sprayer for building construction according to claim 5, characterized in that an eccentric roller (135111) is rotatably connected to the L-shaped shifting plate (1351) and a shifting shaft (13511) axially distributed in parallel with the driving shaft (135), and a torsion spring is arranged between the eccentric roller (135111) and the shifting shaft (13511).