CN112405844A - Stirring mechanism and self-compacting concrete mixer with track structure of track traffic prefabricated slab - Google Patents

Stirring mechanism and self-compacting concrete mixer with track structure of track traffic prefabricated slab Download PDF

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Publication number
CN112405844A
CN112405844A CN202011076910.XA CN202011076910A CN112405844A CN 112405844 A CN112405844 A CN 112405844A CN 202011076910 A CN202011076910 A CN 202011076910A CN 112405844 A CN112405844 A CN 112405844A
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CN
China
Prior art keywords
stirring
piece
hopper
self
transverse
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011076910.XA
Other languages
Chinese (zh)
Inventor
曾晓辉
宋剑伟
刘锦辉
杨兵忠
姚力
尹志超
江万红
龙广成
谢友均
张宏波
管吉波
朱华胜
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Central South University
Original Assignee
Central South University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Central South University filed Critical Central South University
Priority to CN202011076910.XA priority Critical patent/CN112405844A/en
Publication of CN112405844A publication Critical patent/CN112405844A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10Mixing in containers not actuated to effect the mixing
    • B28C5/12Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/16Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers the stirrers having motion about a vertical or steeply inclined axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0831Drives or drive systems, e.g. toothed racks, winches
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28CPREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/0806Details; Accessories
    • B28C5/0856Supporting frames or structures, e.g. supporting wheels

Abstract

The invention relates to a stirring mechanism and a self-compacting concrete mixer with a track structure of a track traffic prefabricated slab. The stirring mechanism is used for being rotatably arranged in the hopper so as to stir the self-compacting concrete in the hopper. The stirring mechanism comprises a shaft sleeve and a plurality of blade assemblies. The shaft sleeve is sleeved on the driving rotating shaft and is in transmission connection with the driving rotating shaft. A plurality of blade assemblies are arranged at intervals along the circumference of the shaft sleeve. Each blade assembly comprises a transverse stirring piece and a vertical stirring piece. One end of the horizontal stirring piece is arranged on the shaft sleeve, and the other end of the horizontal stirring piece is connected with one end of the vertical stirring piece. The longitudinal direction of the vertical stirring piece and the longitudinal direction of the transverse stirring piece form an included angle. The side of the transverse stirring piece facing away from the vertical stirring piece is used for being in slidable contact with the bottom wall of the hopper. Therefore, the arrangement of the stirring mechanism enables the stirring effect of the self-compacting concrete mixer with the track structure of the track traffic prefabricated plate to be better.

Description

Stirring mechanism and self-compacting concrete mixer with track structure of track traffic prefabricated slab
Technical Field
The invention relates to the technical field of building construction equipment, in particular to a stirring mechanism and a self-compacting concrete mixer with a track structure of a track traffic prefabricated slab.
Background
A cement mortar stirrer used as building construction equipment for stirring cement, sand and stone, and various dry mortar is a machine with blades rotating in cylinder or tank to mix multiple raw materials into a mixture or proper consistency.
The blades in the traditional stirring mechanism are mostly fine in order to reduce the resistance in the stirring process. However, the stirring mechanism composed of the relatively fine blades generally has a problem of poor stirring effect.
Disclosure of Invention
Based on this, it is necessary to provide a better rabbling mechanism of stirring effect and track traffic prefabricated plate track structure self-compaction concrete mixer to there is the not good problem of stirring effect to traditional rabbling mechanism.
A stirring mechanism is rotatably arranged in a hopper to stir self-compacting concrete in the hopper, and comprises a shaft sleeve and a plurality of blade assemblies;
the shaft sleeve is sleeved on a driving rotating shaft of the driving mechanism and is in transmission connection with the driving rotating shaft;
a plurality of blade assemblies are arranged at intervals along the circumferential direction of the shaft sleeve; each blade assembly comprises a transverse stirring piece and a vertical stirring piece;
one end of the transverse stirring piece is mounted on the shaft sleeve, and the other end of the transverse stirring piece is connected with one end of the vertical stirring piece; the longitudinal direction of the vertical stirring piece and the longitudinal direction of the transverse stirring piece form an included angle;
and one side of the transverse stirring piece, which is far away from the vertical stirring piece, is used for being in slidable contact with the bottom wall of the hopper.
In some of the embodiments, the transverse stirring piece comprises a stirring hard plate and an elastic scraper; one end of the stirring hard plate is mounted on the shaft sleeve, and the other end of the stirring hard plate is connected with the vertical stirring piece; the elastic scraper is arranged on one side, away from the vertical stirring piece, of the stirring hard plate and is used for being in slidable contact with the bottom wall of the hopper.
In some of these embodiments, the resilient scraper is removably mounted to the paddle.
In some embodiments, the elastic scraper is provided with a strip-shaped through hole along the width direction of the stirring hard plate; the stirring mechanism further comprises a connecting piece; the connecting piece connects the stirring hard board detachably in the elongated through hole.
In some embodiments, the width direction of the transverse stirring member is inclined with respect to the central axis direction of the shaft sleeve.
In some embodiments, the outer wall of the shaft sleeve is provided with a plurality of mounting plates along the circumferential direction; the mounting plates are respectively in one-to-one correspondence with the transverse stirring pieces; the width direction of the mounting plate is obliquely arranged relative to the central axis direction of the shaft sleeve; one end of each transverse stirring piece is detachably arranged on the corresponding mounting plate and is parallel to the mounting plate.
In some embodiments, the transverse stirring piece is provided with a first material passing hole penetrating through the transverse stirring piece; and/or the vertical stirring piece is provided with a second material passing hole penetrating through the vertical stirring piece.
In some embodiments, the shaft sleeve is a hollow cylindrical structure with an opening at one end; the vertical stirring piece is positioned on one side of the transverse stirring piece, which deviates from the opening of the shaft sleeve.
In some embodiments, the side wall of the shaft sleeve is provided with a mounting hole; the stirring mechanism further comprises an axial positioning piece, wherein the axial positioning piece penetrates through the mounting hole and is connected with the driving rotating shaft of the driving mechanism.
A self-compacting concrete mixer with a track structure of a track traffic prefabricated slab comprises a rack, a hopper, a driving mechanism and the mixing mechanism;
the hopper is arranged on the frame; the driving rotating shaft of the driving mechanism is rotatably arranged on the bottom wall of the hopper in a penetrating way;
the stirring mechanism is accommodated in the hopper; the shaft sleeve is sleeved on the driving rotating shaft and is in transmission connection with the driving rotating shaft; the lateral agitation member is in slidable contact with the bottom wall of the hopper.
Above-mentioned rabbling mechanism and track traffic prefabricated plate track structure self-compaction concrete mixer, actuating mechanism's drive pivot rotationally wears to locate on the diapire of hopper to locate the axle sleeve cover in the drive pivot of being located the hopper, with constitute track traffic prefabricated plate track structure self-compaction concrete mixer. When actuating mechanism ordered about the drive pivot and driven the axle sleeve and rotate, the axle sleeve can drive the blade subassembly at the hopper internal rotation, and horizontal stirring piece contacts with the diapire slidable ground of hopper this moment to scrape the stirring with the self-compaction concrete of hopper bottom, reduce the accumulational probability in the hopper bottom from the closely compaction concrete, in order to improve the stirring effect to the self-compaction concrete. Further, because vertical stirring spare is the contained angle setting with the lengthwise direction of horizontal stirring spare, the self-compaction concrete of upper portion then can stir in the hopper so horizontal stirring spare and the cooperation of vertical stirring spare, can stir the self-compaction concrete in the whole hopper, further improves the stirring effect of self-compaction concrete. Therefore, the arrangement of the stirring mechanism enables the stirring effect of the self-compacting concrete mixer with the track structure of the track traffic prefabricated plate to be better.
Drawings
FIG. 1 is a schematic structural diagram of a self-compacting concrete mixer with a track structure of a track traffic prefabricated slab according to an embodiment of the present invention;
FIG. 2 is a sectional view of a hopper of the self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIG. 1;
FIG. 3 is a cross-sectional view of a self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIG. 1;
FIG. 4 is a schematic structural diagram of a self-compacting concrete mixer of a track structure of a track traffic prefabricated slab according to another embodiment of the invention;
FIG. 5 is a sectional view of a hopper of the self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIG. 4;
FIG. 6 is a sectional view of the self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIG. 4;
FIG. 7 is a schematic structural diagram of a perspective view of a mixing mechanism in the self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIGS. 1 and 4;
FIG. 8 is a schematic structural diagram of another perspective view of a stirring mechanism in the self-compacting concrete mixer of the track structure of the track traffic prefabricated slab shown in FIG. 1 and FIG. 4;
FIG. 9 is a schematic structural view of a shaft sleeve of the stirring mechanism shown in FIGS. 7 and 8;
FIG. 10 is a front view of the mounting relationship between the hub and the mounting plate of the agitation mechanism of FIGS. 7 and 8;
fig. 11 is a bottom view of the mounting relationship between the bushing and the mounting plate of fig. 10.
Description of reference numerals: 10. the track structure self-compacting concrete mixer of the track traffic precast slab; 100. a frame; 200. a hopper; 210. a base plate; 211. a high-order end; 212. a low-order end; 220. a side plate; 232. a discharge port; 230. a stirring chamber; 231. a feed inlet; 300. a stirring mechanism; 310. a shaft sleeve; 311. an opening; 312. mounting holes; 320. a blade assembly; 321. a transverse stirring member; 3211. stirring a hard plate; 3212. an elastic scraper; 3213. a strip-shaped through hole; 3214. a first material passing hole; 322. a vertical stirring member; 3221. a second material passing hole; 330. a connecting member; 340. mounting a plate; 350. an axial positioning member; 500. a drive mechanism; 510. the rotating shaft is driven.
Detailed Description
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
When an element is referred to as being "on" another element, it can be directly on the other element or intervening elements may also be present, unless otherwise specified. It will also be understood that when an element is referred to as being "between" two elements, it can be the only one between the two elements, or one or more intervening elements may also be present.
Where the terms "comprising," "having," and "including" are used herein, another element may be added unless an explicit limitation is used, such as "only," "consisting of … …," etc. Unless mentioned to the contrary, terms in the singular may include the plural and are not to be construed as being one in number.
Furthermore, the drawings are not 1: 1, and the relative dimensions of the various elements in the figures are drawn for illustration only and not necessarily to true scale.
Referring to fig. 1 and 4, the present invention provides a mixing mechanism 300 and a self-compacting concrete mixer 10 with a track structure of a track traffic prefabricated slab. The self-compacting concrete mixer 10 with the track structure of the track traffic precast slab is used for mixing and evenly mixing concrete materials, such as heavy concrete, common conventional concrete, asphalt concrete and the like. In the present embodiment, the self-compacting concrete mixer 10 with a track structure of a track traffic prefabricated slab is used for mixing self-compacting concrete. It should be noted that the self-compacting concrete which is uniformly mixed by using the self-compacting concrete mixer 10 for the track structure of the track traffic precast slab is mainly used for processing the self-compacting concrete structure in the track traffic construction. .
The self-compacting concrete mixer 10 with the rail transit precast slab rail structure comprises a frame 100, a hopper 200, a mixing mechanism 300 and a driving mechanism 500. The frame 100 mainly plays a supporting role, and may be a frame structure formed by splicing rod pieces, or a shell structure formed by splicing plate pieces.
Referring to fig. 2 and 5, the hopper 200 is mounted on the frame 100. The hopper 200 is internally formed with a stirring chamber 230 having a feed port 231 at one end thereof. The mixing cavity 230 is a working space for the self-compacting concrete mixer 10 with a track structure of the track traffic prefabricated slab to mix the self-compacting concrete. The bottom of the stirring cavity 230 is provided with a discharge hole 232 communicated with the outside. The feeding port 231 is mainly used for feeding cement, gravel and other building materials into the hopper 200, and the discharging port 232 is used for discharging the self-compacting concrete which is stirred in the hopper 200.
Specifically, the hopper 200 includes a bottom plate 210 and a side plate 220 disposed along a circumferential direction of the bottom plate 210 and connected to the bottom plate 210. The bottom plate 210 and the side plate 220 enclose a stirring cavity 230 with a feeding hole 231 at one end. The inner surface of the base plate 210 is disposed obliquely with respect to the bottom plane of the housing 100. When the self-compacting concrete mixer 10 of the rail structure of the rail transit precast slab is located at a horizontal plane, the bottom plane of the frame 100 is a horizontal plane parallel to the ground, and thus the inner surface of the bottom plate 210 is an inclined plane inclined with respect to the horizontal plane. The bottom plate 210 may be a plate with different thickness, or a plate with the same thickness, as long as the inner surface of the bottom plate 210 is inclined with respect to the horizontal plane.
The discharge hole 232 is located in a predetermined region of the inner wall of the stirring chamber 230. The lowest position of the agitation chamber 230 is located within a predetermined area of the inner wall of the agitation chamber 230.
The preset area of the inner wall of the mixing chamber 230 is a preset area on the inner wall of the mixing chamber 230, and the preset area includes the lowest position of the mixing chamber 230. Therefore, the discharge port 232 is located at or near the lowest position of the inner wall of the agitation chamber 230.
Referring to fig. 2 and 5 again, in detail, the predetermined region of the inner wall of the stirring cavity 230 includes a partial region of the inner surface of the bottom plate 210 and a partial region of the inner surface of the side plate 220, so the discharge hole 232 may be formed on the bottom plate 210 or the side plate 220. Therefore, when the discharge port 232 is opened, the self-compacting concrete in the mixing chamber 230 can slide along the direction from the highest position to the lowest position of the inner surface of the bottom plate 210 under the action of its own weight until the self-compacting concrete slides out of the discharge port 232.
Specifically, the discharge port 232 is located at the lowest position of the inner wall of the stirring chamber 230. From this, when self-compaction concrete in stirring chamber 230 slides to discharge gate 232 under self action of gravity, because discharge gate 232 is located the lowest position in stirring chamber 230, so self-compaction concrete in stirring chamber 230 is discharged from discharge gate 232 more easily, has further reduced the probability that takes place the circumstances such as long-pending material, putty in stirring chamber 230 for the ejection of compact of track traffic prefabricated plate track structure self-compaction concrete mixer 10 is more smooth and easy.
Referring to fig. 3 and 6, the driving shaft 510 of the driving mechanism 500 is rotatably inserted through the bottom of the hopper 200. Specifically, the driving shaft 510 is rotatably disposed through the bottom plate 210. The stirring mechanism 300 is housed in the hopper 200. That is, the stirring mechanism 300 is housed in the stirring chamber 230. The stirring mechanism 300 is sleeved on the driving shaft 510 and is in transmission connection with the driving shaft 510. The mixing mechanism 300 serves as an operating component that mixes the self-compacting concrete in the mixing chamber 230 as it rotates within the mixing chamber 230.
Referring to fig. 7 and 8, the stirring mechanism 300 according to the preferred embodiment of the present invention includes a shaft housing 310 and a plurality of blade assemblies 320.
The shaft sleeve 310 is disposed on the driving shaft 510 of the driving mechanism 500 and is in transmission connection with the driving shaft 510. In the self-compacting concrete mixer 10 with the track structure of the track traffic prefabricated slab, the driving shaft 510 can drive the shaft sleeve 310 to rotate relative to the hopper 200 under the driving force provided by the driving mechanism 500.
Referring to fig. 9, in some embodiments, the shaft sleeve 310 is a hollow cylindrical structure with an opening 311 at one end. The shaft sleeve 310 is used for being sleeved on the end of the driving rotating shaft 510 at one end in the hopper 200. In the self-compacting concrete mixer 10 with the track structure of the track traffic prefabricated slab, the shaft sleeve 310 is sleeved at the end part of one end of the driving rotating shaft 510, so that the probability that the self-compacting concrete and the like in the hopper 200 leak out of the hopper 200 along the driving rotating shaft 510 can be reduced, and the sealing property between the hopper 200 and the driving rotating shaft 510 is improved.
Referring to fig. 3, 6 to 9 again, in some embodiments, the side wall of the shaft sleeve 310 is provided with a mounting hole 312. The stirring mechanism 300 further comprises an axial positioning member 350. The axial positioning member 350 is disposed through the mounting hole 312 and is configured to be in transmission connection with a driving shaft 510 of the driving mechanism 500. Specifically, the axial positioning member 350 may be a screw, a bolt, or the like.
In the self-compacting concrete mixer 10 with the track structure of the track traffic precast slab, the axial positioning element 350 penetrates through the mounting hole 312 and is connected with the driving rotating shaft 510, so as to fix the shaft sleeve 310 on the driving rotating shaft 510, and axially position the mounting position of the driving mechanism 500 on the driving rotating shaft 510, thereby avoiding the probability that the stirring mechanism 300 axially shifts relative to the driving rotating shaft 510 and even separates from the driving rotating shaft 510 during the rotation process, and therefore, the arrangement of the axial positioning element 350 effectively improves the reliability of the self-compacting concrete mixer 10 with the track structure of the track traffic precast slab.
Specifically, when the shaft sleeve 310 is a hollow cylindrical structure with an opening 311 at one end, the mounting hole 312 is opened at a position of the side wall of the shaft sleeve 310 away from the opening 311. Therefore, in the self-compacting concrete mixer 10 with a track structure of a track traffic prefabricated slab, the axial positioning member 350 is inserted into the mounting hole 312 and connected to the end of the driving shaft 510 located at one end of the hopper 200.
Referring again to fig. 7 and 8, a plurality of vane assemblies 320 are spaced circumferentially about hub 310. Each blade assembly 320 includes a lateral stirrer 321 and a vertical stirrer 322. One end of the horizontal stirring member 321 is mounted on the shaft sleeve 310, and the other end is connected with one end of the vertical stirring member 322. The longitudinal direction of the vertical stirring member 322 forms an angle with the longitudinal direction of the horizontal stirring member 321. Therefore, a certain included angle is formed between the vertical stirring piece 322 and the horizontal stirring piece 321. In the self-compacting concrete mixer 10 with the track structure of the track traffic prefabricated slab, one end of the vertical stirring piece 322, which is far away from the transverse stirring piece 321, is arranged upwards, so that the vertical stirring piece 322 is positioned at the upper part of the hopper 200. Specifically, the longitudinal direction of the vertical stirring members 322 is perpendicular to the longitudinal direction of the horizontal stirring members 321, so that the blade assembly 320 is L-shaped.
The side of the lateral stirring member 321 facing away from the vertical stirring member 322 is adapted to slidably contact the bottom wall of the hopper 200. In the track traffic prefabricated slab track structure self-compacting concrete mixer 10, when the hopper 200 includes the bottom plate 210 and the side plates 220, a side of the lateral mixing member 321 facing away from the vertical mixing member 322 is slidably in contact with an inner surface of the bottom plate 210.
Therefore, when the stirring mechanism 300 rotates in the stirring cavity 230, the transverse stirring member 321 can have a bottom scraping effect on the inner surface of the bottom plate 210 to scrape and stir the self-compacting concrete at the bottom of the stirring cavity 230, so that the self-compacting concrete is prevented from being accumulated on the inner surface of the bottom plate 210, the sliding speed of the self-compacting concrete in the stirring cavity 230 towards the discharge port 323 is increased, the probability that the discharge port 232 is blocked by the self-compacting concrete is reduced, and the self-compacting concrete in the hopper 200 is stirred more uniformly; vertical stirring piece 322 then can stir the self-compaction concrete on stirring chamber 230 upper portion, has further improved the stirring effect of self-compaction concrete.
In some embodiments, the lateral stirring member 321 includes a stirring hard plate 3211 and an elastic scraper 3212. One end of the stirring hard plate 3211 is mounted on the shaft sleeve 310, and the other end is connected with the vertical stirring member 322. The elastic scraper 3212 is installed on a side of the stirring hard plate 3211 facing away from the vertical stirring member 322, and is configured to slidably contact with the bottom wall of the hopper 200.
The stirring hard plate 3211 mainly functions as a support and a stirring function, and is generally made of high-strength materials such as alloy steel, cast steel, and cast iron. The elastic scraper 3212 is mainly used for scraping and stirring the self-compacting concrete on the inner surface of the bottom plate 210, and is generally made of a material with a relatively large elasticity, such as rubber, plastic, and the like, so as to increase the contact area between the elastic scraper 3212 and the inner surface of the bottom plate 210 and improve the sand scraping and stirring effects of the elastic scraper 3212. Moreover, the hardness of the material of the elastic scraper 3212 is lower than that of the material of the hopper 200, so the arrangement of the elastic scraper 3212 can reduce the probability of abrasion of the bottom plate 210 and prolong the service life of the hopper 200.
Further, in some embodiments, the resilient scraper 3212 is detachably mounted to the agitator paddle 3211. The elastic scraper 3212 is detachably connected to the hard stirring plate 3211 by screwing, clamping, or the like. Because the material of elasticity scraper blade 3212 is softer, and is worn and torn very easily after using for a long time, so elasticity scraper blade 3212 is the vulnerable part, so set up elasticity scraper blade 3212 and stirring hardboard 3211 into detachably connected mode to the change after the floor wearing and tearing is scraped to the convenience, and then make rabbling mechanism 300's maintenance more convenient.
Further, in some embodiments, the elastic scraper 3212 is provided with an elongated through hole 3213 along the width direction of the hard stirring plate 3211. The stirring mechanism 300 further includes a connecting member 330. The connecting member 330 detachably connects the stirring hard plate 3211 to the elongated through hole 3213. The connecting member 330 may be a bolt and nut assembly, a screw and nut assembly, a bolt, a screw, etc.
When the elastic scraping plate 3212 is worn after a long time use, the elastic scraping plate 3212 can continuously contact the bottom plate 210 by loosening the connecting member 330, moving the connecting member 330 in the elongated through hole 3213 toward the direction close to the bottom plate 210, and then tightening the connecting member 330. From this, the setting of rectangular shape through-hole 3213 and connecting piece 330 can realize the adjustment of the mounted position of elasticity scraper blade 3212 on stirring hardboard 3211 to make and keep effective contact throughout between elasticity scraper blade 3212 and the hopper 200 diapire, prolonged the life of elasticity scraper blade 3212, and then make the life of rabbling mechanism 300 also longer.
When the elastic scraping plates 3212 need to be replaced or the installation positions of the elastic scraping plates 3212 on the transverse stirring members 321 need to be adjusted, the connection members 330 only need to be screwed, and the elastic scraping plates 3212 and the transverse stirring members 321 can be disassembled and assembled, so that the connection members 330 are arranged, and the elastic scraping plates 3212 can be disassembled and assembled more conveniently.
Referring to fig. 7 and 8 again, in some embodiments, the width direction of the transverse stirring element 321 is inclined relative to the central axis direction of the shaft sleeve 310. In the self-compacting concrete mixer 10 of the rail transit precast slab rail structure, when the shaft housing 310 is perpendicular to the surface of the base plate 210, the width direction of the lateral mixing member 321 is inclined with respect to the surface of the base plate 210. Specifically, when the lateral stirring member 321 includes the stirring hard plate 3211 and the elastic scraper 3212, both the width direction of the stirring hard plate 3211 and the width direction of the elastic scraper 3212 are inclined with respect to the central axis direction of the shaft sleeve 310.
When the stirring mechanism 300 rotates in the hopper 200, the impact force of the self-compacting concrete on the surface of the transverse stirring member 321 is also inclined relative to the surface of the transverse stirring member 321, and at this time, the impact force can be decomposed into a first acting force perpendicular to the surface of the transverse stirring member 321 and a second acting force parallel to the surface of the transverse stirring member 321, obviously, the first acting force perpendicularly acting on the surface of the transverse stirring member 321 is smaller than the impact force, so that the width direction of the transverse stirring member 321 is set to be inclined relative to the central axis direction of the shaft sleeve 310, and the stirring energy consumption of the stirring mechanism 300 can be reduced.
Furthermore, the width direction of the transverse stirring member 321 is inclined relative to the central axis direction of the shaft sleeve 310, and the contact area between the transverse stirring member 321 and the self-compacting concrete can be increased, so that the stirring effect of the self-compacting concrete is ensured. Therefore, the width direction of the transverse stirring member 321 is inclined relative to the central axis direction of the shaft sleeve 310, so that the stirring mechanism 300 has low energy consumption and high stirring effect.
Referring to fig. 10 and 11, further, in some embodiments, the outer wall of the shaft sleeve 310 is provided with a plurality of mounting plates 340 along the circumferential direction. The plurality of mounting plates 340 correspond to the plurality of lateral agitating members 321 one-to-one, respectively. The width direction of the mounting plate 340 is inclined with respect to the central axis direction of the sleeve 310. One end of each lateral stirring member 321 is detachably mounted to the corresponding mounting plate 340 and is parallel to the mounting plate 340. Specifically, when the lateral stirring member 321 includes a stirring hard plate 3211 and an elastic scraper 3212, one end of the stirring hard plate 3211 is detachably mounted on the corresponding mounting plate 340, and is parallel to the mounting plate 340. Therefore, the installation plate 340 not only facilitates the installation of the transverse stirring member 321 on the shaft sleeve 310, but also enables the width direction of the transverse stirring member 321 to be obliquely arranged relative to the central axis direction of the shaft sleeve 310.
Referring to fig. 7 and 8 again, in some embodiments, the horizontal stirring element 321 is provided with a first material passing hole 3214 penetrating through the horizontal stirring element 321, and/or the vertical stirring element 322 is provided with a second material passing hole 3221 penetrating through the vertical stirring element 322. Specifically, in the stirring mechanism 300, only the horizontal stirring member 321 may be provided with the first material passing hole 3214, or only the vertical stirring member 322 may be provided with the second material passing hole 3221, or both the horizontal stirring member 321 may be provided with the first material passing hole 3214 and the vertical stirring member 322 may be provided with the second material passing hole 3221.
From this, when the self-compaction concrete in hopper 200 stirs under the drive of blade subassembly 320, part self-compaction concrete can be directly through first punishment in advance 3214 and/or second punishment in advance 3221, in order to reduce the resistance that self-compaction concrete caused to blade subassembly 320 in the hopper 200, not only guaranteed the stirring effect, but also make stirring mechanism 300 more laborsaving when rotating, in order to reduce the energy consumption of track traffic precast slab track structure self-compaction concrete mixer 10, still reduced blade subassembly 320 simultaneously because the too big probability that causes the damage of self-compaction concrete resistance, the precast slab life of track traffic track structure self-compaction concrete mixer 10 has been improved.
Specifically, when the transverse stirring member 321 includes a hard stirring plate 3211 and an elastic scraper 3212, the hard stirring plate 3211 is provided with a first material passing hole 3214.
Specifically, the first material passing hole 3214 and the second material passing hole 3221 are both waist-shaped holes, and the length direction of the first material passing hole 3214 is consistent with the longitudinal direction of the transverse stirring member 321, and the length direction of the second material passing hole 3221 is consistent with the longitudinal direction of the vertical stirring member 322.
Referring again to fig. 7, in some embodiments, an end of the vertical stirring element 322 away from the shaft housing 310 is bent in a direction toward the shaft housing 310. When the stirring mechanism 300 rotates in the hopper 200, the vertical stirring member 322 can stir the self-compacting concrete close to the inner surface of the side plate 220 toward the direction of the shaft sleeve 310, so as to reduce the probability that the self-compacting concrete will beat toward the inner surface of the side plate 220 in the stirring process, and further reduce the cover body damaged by the side plate 220 of the hopper 200, thereby prolonging the service life of the hopper 200.
In the above-mentioned stirring mechanism 300 and the self-compacting concrete mixer 10 with track structure of track traffic prefabricated slab, the driving shaft 510 of the driving mechanism 500 is rotatably inserted into the bottom wall of the hopper 200, and the shaft sleeve 310 is sleeved on the driving shaft 510 in the hopper 200, so as to form the self-compacting concrete mixer 10 with track structure of track traffic prefabricated slab. When actuating mechanism 500 ordered about drive pivot 510 and driven drive axle sleeve 310 and rotated, axle sleeve 310 can drive blade subassembly 320 at the internal rotation of hopper 200, and horizontal stirring piece 321 contacts with the diapire slidable ground of hopper 200 this moment to scrape the stirring with the self-compaction concrete of hopper 200 bottom, reduce the self-compaction concrete and in the accumulational probability in hopper 200 bottom, in order to improve the stirring effect to self-compaction concrete. Further, because vertical stirring piece 322 is the contained angle setting with the lengthwise direction of horizontal stirring piece 321, so vertical stirring piece 322 then can stir the self-compaction concrete of upper portion in the hopper 200, so horizontal stirring piece 321 cooperates with vertical stirring piece 322, can stir the self-compaction concrete in the whole hopper 200, further improves the stirring effect of self-compaction concrete. Therefore, the stirring mechanism 300 is arranged, so that the stirring effect of the self-compacting concrete mixer 10 with the track structure of the track traffic prefabricated slab is better.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. A stirring mechanism is used for being rotatably arranged in a hopper so as to stir self-compacting concrete in the hopper, and is characterized by comprising a shaft sleeve and a plurality of blade assemblies;
the shaft sleeve is sleeved on a driving rotating shaft of the driving mechanism and is in transmission connection with the driving rotating shaft;
a plurality of blade assemblies are arranged at intervals along the circumferential direction of the shaft sleeve; each blade assembly comprises a transverse stirring piece and a vertical stirring piece;
one end of the transverse stirring piece is mounted on the shaft sleeve, and the other end of the transverse stirring piece is connected with one end of the vertical stirring piece; the longitudinal direction of the vertical stirring piece and the longitudinal direction of the transverse stirring piece form an included angle;
and one side of the transverse stirring piece, which is far away from the vertical stirring piece, is used for being in slidable contact with the bottom wall of the hopper.
2. The stirring mechanism of claim 1 wherein the lateral stirring member comprises a stirring hard plate and an elastic scraper; one end of the stirring hard plate is mounted on the shaft sleeve, and the other end of the stirring hard plate is connected with the vertical stirring piece; the elastic scraper is arranged on one side, away from the vertical stirring piece, of the stirring hard plate and is used for being in slidable contact with the bottom wall of the hopper.
3. The stirring mechanism of claim 2 wherein said resilient scraper is removably mounted to said stirring blade.
4. The stirring mechanism as recited in claim 3, wherein the elastic scraper is provided with a strip-shaped through hole along the width direction of the stirring hard plate; the stirring mechanism further comprises a connecting piece; the connecting piece connects the stirring hard board detachably in the elongated through hole.
5. The stirring mechanism of claim 1, wherein the width direction of the transverse stirring member is inclined with respect to the central axis direction of the sleeve.
6. The stirring mechanism as recited in claim 5, wherein the outer wall of the shaft sleeve is circumferentially provided with a plurality of mounting plates; the mounting plates are respectively in one-to-one correspondence with the transverse stirring pieces; the width direction of the mounting plate is obliquely arranged relative to the central axis direction of the shaft sleeve; one end of each transverse stirring piece is detachably arranged on the corresponding mounting plate and is parallel to the mounting plate.
7. The stirring mechanism as recited in claim 1, wherein the transverse stirring member is provided with a first material passing hole penetrating through the transverse stirring member; and/or the vertical stirring piece is provided with a second material passing hole penetrating through the vertical stirring piece.
8. The stirring mechanism of claim 1, wherein the sleeve is a hollow cylindrical structure with an opening at one end; the vertical stirring piece is positioned on one side of the transverse stirring piece, which deviates from the opening of the shaft sleeve.
9. The stirring mechanism of claim 1, wherein the side wall of the shaft sleeve is provided with a mounting hole; the stirring mechanism further comprises an axial positioning piece, wherein the axial positioning piece penetrates through the mounting hole and is connected with the driving rotating shaft of the driving mechanism.
10. A self-compacting concrete mixer with a track structure of a track traffic prefabricated slab, which is characterized by comprising a frame, a hopper, a driving mechanism and a mixing mechanism as claimed in any one of claims 1 to 9;
the hopper is arranged on the frame; the driving rotating shaft of the driving mechanism is rotatably arranged on the bottom wall of the hopper in a penetrating way;
the stirring mechanism is accommodated in the hopper; the shaft sleeve is sleeved on the driving rotating shaft and is in transmission connection with the driving rotating shaft; the lateral agitation member is in slidable contact with the bottom wall of the hopper.
CN202011076910.XA 2020-10-10 2020-10-10 Stirring mechanism and self-compacting concrete mixer with track structure of track traffic prefabricated slab Pending CN112405844A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU477851A1 (en) * 1972-03-16 1975-07-25 Государственный Всесоюзный Научно-Исследовательский Институт Строительных Материалов И Конструкций Vibratory mixer
CN103101112A (en) * 2011-11-09 2013-05-15 徐工集团工程机械股份有限公司 Novel elastic stirring blade for concrete hopper
CN205760813U (en) * 2016-07-11 2016-12-07 郑得川 A kind of raw material mixed stirring device
CN108465438A (en) * 2018-05-07 2018-08-31 江苏中农科食品工程有限公司 One kind being convenient for clean wet granulator
CN110757650A (en) * 2019-11-27 2020-02-07 北京艺轩吉装饰工程有限公司 Indoor concrete mixing device for architectural decoration

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU477851A1 (en) * 1972-03-16 1975-07-25 Государственный Всесоюзный Научно-Исследовательский Институт Строительных Материалов И Конструкций Vibratory mixer
CN103101112A (en) * 2011-11-09 2013-05-15 徐工集团工程机械股份有限公司 Novel elastic stirring blade for concrete hopper
CN205760813U (en) * 2016-07-11 2016-12-07 郑得川 A kind of raw material mixed stirring device
CN108465438A (en) * 2018-05-07 2018-08-31 江苏中农科食品工程有限公司 One kind being convenient for clean wet granulator
CN110757650A (en) * 2019-11-27 2020-02-07 北京艺轩吉装饰工程有限公司 Indoor concrete mixing device for architectural decoration

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