CN110450285B - Concrete mixing drum with cleaning function - Google Patents
Concrete mixing drum with cleaning function Download PDFInfo
- Publication number
- CN110450285B CN110450285B CN201910775786.7A CN201910775786A CN110450285B CN 110450285 B CN110450285 B CN 110450285B CN 201910775786 A CN201910775786 A CN 201910775786A CN 110450285 B CN110450285 B CN 110450285B
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- Prior art keywords
- wall
- stirring shaft
- water
- fixedly connected
- stirring
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- 238000004140 cleaning Methods 0.000 title claims abstract description 45
- 238000002156 mixing Methods 0.000 title claims abstract description 32
- 238000003756 stirring Methods 0.000 claims abstract description 113
- 238000007790 scraping Methods 0.000 claims abstract description 31
- 238000007599 discharging Methods 0.000 claims abstract description 14
- 238000011010 flushing procedure Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 99
- 238000007789 sealing Methods 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 14
- 239000007924 injection Substances 0.000 claims description 14
- 230000008878 coupling Effects 0.000 claims description 7
- 238000010168 coupling process Methods 0.000 claims description 7
- 238000005859 coupling reaction Methods 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 4
- 239000007921 spray Substances 0.000 claims description 2
- 210000001503 joint Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 10
- 230000000694 effects Effects 0.000 description 7
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000010907 mechanical stirring Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/087—Cleaning containers, e.g. tanks by methods involving the use of tools, e.g. brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus 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
- B28C5/0806—Details; Accessories
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus 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
- B28C5/0806—Details; Accessories
- B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus 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
- B28C5/0806—Details; Accessories
- B28C5/0856—Supporting frames or structures, e.g. supporting wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
- B28C5/08—Apparatus 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
- B28C5/10—Mixing in containers not actuated to effect the mixing
- B28C5/12—Mixing 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
- B28C5/16—Mixing 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Accessories For Mixers (AREA)
Abstract
The invention relates to a concrete mixing drum with a cleaning function, which comprises a drum body with a hollow interior and an open end, a discharging pipe connected to one end of the drum body far away from the open end, a valve arranged on the discharging pipe, and supporting legs fixedly connected to the outer wall of the drum body, wherein a supporting plate crossing the open end is fixedly connected to the drum body, a stirring shaft vertically penetrating through the supporting plate and rotationally connected with the supporting plate is arranged in the drum body, blades are fixedly connected to the stirring shaft, fixing rods extending horizontally towards the drum wall are symmetrically and vertically fixedly connected to the outer wall of the stirring shaft, first scraping plates abutting against the inner wall of the drum body are fixedly connected to the end parts of the two fixing rods respectively, and a driving assembly capable of driving the stirring shaft to drive the blades and the first scraping plates to synchronously rotate so as to stir concrete and a cleaning device capable of flushing the inner wall of the drum body are arranged on the upper surface of the supporting plate. The invention has the advantages of fully stirring the concrete, improving the stirring quality and facilitating the cleaning of the stirring barrel by staff.
Description
Technical Field
The invention relates to a concrete mixer, in particular to a concrete mixer barrel with a cleaning function.
Background
Concrete stirring is an operation method for uniformly stirring cement, lime, water and other materials after mixing. The concrete stirring is divided into manual stirring and mechanical stirring, and at present, the widely applied mechanical stirring is a concrete stirrer and a concrete stirring barrel, the concrete stirrer is suitable for large-scale construction, and the concrete stirring barrel is suitable for small-scale construction.
The current agitator includes staving, along its axial arrangement's (mixing) shaft an organic whole blade of being connected on the (mixing) shaft and set up at the bucket top and with (mixing) shaft connection's motor, when the motor rotated, it drove the blade through the (mixing) shaft and rotated to this stirs the concrete in the agitator.
But this kind of agitated vessel can adhere on the inner wall of agitator at the in-process of stirring to concrete, and the blade can't stir the concrete of adhesion on the concrete inner wall, influences the quality of stirring, leads to the stirring effect of concrete not as expected, and the time is a long moreover, and the concrete of adhesion can firmly adhere with the inner wall of agitator, brings the hindrance for later stage's washing.
Disclosure of Invention
The invention aims to provide a concrete mixing drum with a cleaning function, which has the advantages of fully mixing concrete, improving mixing quality and facilitating cleaning of the mixing drum by workers.
The technical aim of the invention is realized by the following technical scheme: the utility model provides a concrete mixing drum with cleaning function, includes inside cavity and one end be open staving, connect and communicate in the staving keep away from the discharging pipe of open one end, install valve on the discharging pipe and rigid coupling are in order to carry out the landing leg that supports it on the staving outer wall, the rigid coupling has spaning open carrier plate on the staving, be equipped with in the staving vertically pass the carrier plate and rotate the (mixing) shaft of being connected with it, the (mixing) shaft with coaxial line sets up between the staving, the rigid coupling has the blade on the (mixing) shaft, symmetrical and perpendicular rigid coupling have towards staving horizontally extended dead lever on the outer wall of (mixing) shaft, two the tip rigid coupling of dead lever have respectively with the first scraper blade of staving inner wall looks butt and vertical setting, the upper surface of carrier plate is equipped with can drive the (mixing) shaft drive the blade with the synchronous rotation of first scraper blade is in order to stir the drive assembly of stirring concrete and can be right the cleaning device that the staving inner wall washed.
According to the technical scheme, when the stirring device works, the driving assembly is started, the stirring shaft drives the blades to rotate and stir concrete in the barrel, in the stirring process, the first scraping plate continuously scrapes the concrete adhered on the barrel wall into the barrel, the possibility of hardening and adhering the concrete on the barrel wall is reduced, so that the stirring device is convenient for later cleaning, plays a role in auxiliary stirring, improves the stirring quality, and discharges materials through the discharging pipe after stirring is completed; during cleaning, the driving assembly and the cleaning device are started, so that the first scraping plate cleans the inner side wall of the cylinder body, meanwhile, the cleaning device is matched to realize scraping and flushing, and the self-cleaning effect is achieved, so that manual cleaning is avoided, the cleaning efficiency is improved, and compared with the stirring barrel in the prior art, the stirring barrel disclosed by the application not only can be used for fully stirring concrete, but also can be used for improving the stirring quality, and meanwhile, the stirring barrel is convenient for workers to clean.
The invention is further provided with: the driving assembly comprises a motor arranged on the bearing plate, a driving gear fixedly connected to an output shaft of the motor, and a driven gear fixedly connected to the outer wall of the stirring shaft and meshed with the driving gear.
Through above-mentioned technical scheme, during operation, start the motor, make it pass through driving gear and driven gear with power transmission to the (mixing) shaft on to drive blade and first scraper blade rotation.
The invention is further provided with: the cleaning device comprises a water pump arranged on the bearing plate, a water delivery pipe connected to the water outlet of the water pump, a rotary joint arranged between the water delivery pipe and the stirring shaft, and a water supply pipe connected between the water inlet of the water pump and a water source;
the stirring shaft is hollow in the stirring shaft, an end plate is fixedly connected to the bottom end of the stirring shaft, the stirring shaft is communicated with the water delivery pipe through the rotary joint, waterways communicated with the stirring shaft are respectively arranged in the two fixing rods, a water chamber communicated with the waterways is arranged in the first scraping plate, and the first scraping plate is tightly attached to one side of the barrel wall and provided with a plurality of water spray ports.
Through above-mentioned technical scheme, the in-process of clearance, water pump are carried to first scraper blade by delivery pipe, raceway, rotary joint, (mixing) shaft and dead lever in proper order to on the inside wall of follow water jet blowout to staving, the water after the washing falls into the barrel head, and after the washing is accomplished, the mixture of water and concrete is discharged by the discharging pipe.
The invention is further provided with: the rotary joint comprises an inner cylinder and an outer cylinder, wherein the inner cylinder is hollow in the inside, the two ends of the inner cylinder are open, the outer cylinder is rotatably sleeved outside the inner cylinder, a water injection port communicated with the outer cylinder is formed in the side wall of the inner cylinder, a water injection pipe communicated with the inner part of the outer cylinder is integrally connected to the side wall of the outer cylinder, and the water delivery pipe is connected to the water injection pipe;
one end of the inner cylinder is connected with an end cover in a threaded manner, and the other end of the inner cylinder is connected with the stirring shaft in a sealing manner through a flange.
Through the technical scheme, when the stirring shaft rotates, the stirring shaft drives the inner cylinder of the rotary joint to rotate and is used for counteracting interference between rotation of the stirring shaft and water delivery of the water delivery pipe; when the water is conveyed to the rotary joint, the water can enter the stirring shaft through the water injection pipe, the water injection port and the flange joint.
The invention is further provided with: annular grooves are symmetrically formed on the outer wall of the inner cylinder, which is close to two ends, and the inner wall of the outer cylinder, which is close to two ends, respectively, annular channels are formed between the two opposite annular grooves, a plurality of balls matched with the annular channels in size are arranged in the annular channels, delivery holes for placing the balls are respectively formed in the positions, corresponding to the two annular channels, of the outer cylinder, and plugs are connected in the delivery holes in a threaded manner;
the inner cylinder is close to two ends and is located on the outer wall of the inner side of the annular groove, annular sealing grooves are respectively formed in the outer wall of the inner cylinder, and sealing rubber rings are arranged in the annular sealing grooves.
According to the technical scheme, when the device is assembled, the sealing rubber rings are sleeved in the corresponding annular sealing grooves and the end covers are covered, then the outer cylinder is sleeved outside the inner cylinder until the end parts of the outer cylinder are in contact with the positioning convex edges, an annular channel is formed between the two opposite annular grooves, the sealing rubber rings are tightly pressed between the inner cylinder and the outer cylinder, at the moment, the balls are placed into the annular channel one by one from the placing opening, after the placing is finished, the placing opening is closed through the plug pair, and after the assembly is finished, the ball bearings are installed on the stirring shaft and are communicated with the water delivery pipe; the arrangement of the balls not only can limit the inner cylinder and the outer cylinder, but also can reduce friction when the inner cylinder and the outer cylinder relatively rotate; and the sealing rubber ring is used for sealing the inner cylinder and the outer cylinder, so that leakage is avoided.
The invention is further provided with: and the outer wall of the inner cylinder is fixedly connected with a positioning convex rib which is convenient for aligning the two annular grooves.
Through the technical scheme, the positioning convex edges are arranged and used for limiting the annular groove; when the outer cylinder is sleeved outside the inner cylinder and the end part of the outer cylinder is contacted with the positioning convex edge, an annular channel is formed between the two opposite annular grooves.
The invention is further provided with: the end plate is provided with a water dripping hole with the aperture of 1-2 mm.
Through above-mentioned technical scheme, wash the back of accomplishing, the water in the pipeline is discharged by the weeping hole gradually, avoids in the pipeline because long-time water storage corrodes the body, reduces the life of pipeline.
The invention is further provided with: the side walls of the stirring shaft, which are close to the bottom end, are fixedly connected with supporting shafts horizontally extending towards the direction of the barrel wall respectively, a plurality of second scrapers obliquely arranged towards the same direction are fixedly connected with the lower side walls of the supporting shafts at equal intervals, the second scrapers are arranged in a logarithmic spiral curve shape by taking the discharging pipe as the center, and one side of each second scraper, which is far away from the supporting shaft, is in contact with the bottom wall of the barrel body.
According to the technical scheme, the second scrapers are arranged in a logarithmic spiral curve shape, so that when the stirring shaft rotates, the second scrapers continuously push and gather concrete towards the center of the barrel body in the process of rotating along with the stirring shaft, and simultaneously play a role in stirring, when more concrete gathered in the center is gathered, the blades scatter the concrete again and circularly reciprocate, so that the concrete is fully stirred, and the stirring quality is improved; when cleaning, the second scraping plate can also clean the bottom wall of the barrel body.
The invention is further provided with: the stirring shaft is rotatably connected with the bearing plate through a bearing.
Through above-mentioned technical scheme, the setting of bearing for reduce friction, so that the (mixing) shaft rotates relative bearing layer board.
In summary, the beneficial technical effects of the invention are as follows:
1. When the stirring device works, the driving assembly is started, the stirring shaft drives the blades to rotate and stir concrete in the barrel, in the stirring process, the first scraping plate continuously scrapes the concrete adhered on the barrel wall into the barrel, the possibility of hardening and adhering the concrete on the barrel wall is reduced, so that the stirring device is convenient for later cleaning, plays a role in assisting in stirring, and improves the stirring quality; when the stirring barrel is cleaned, the driving assembly and the cleaning device are started, so that the first scraping plate cleans the inner side wall of the barrel, and meanwhile, the cleaning device is matched to realize scraping and flushing at the same time, so that the self-cleaning effect is achieved, manual cleaning is avoided, the cleaning efficiency is improved, and compared with the stirring barrel in the prior art, the stirring barrel disclosed by the application not only can be used for fully stirring concrete, but also can be used for conveniently cleaning the stirring barrel by workers;
2. the rotary joint is used for counteracting interference between rotation of the stirring shaft and water delivery of the water delivery pipe;
3. the drip holes are arranged for draining water in the pipeline, so that the corrosion of the pipeline body due to long-time water storage in the pipeline is avoided, and the service life of the pipeline is reduced;
4. The second scraping plate is arranged and used for continuously pushing and converging the concrete towards the center of the barrel body in the process of rotation of the stirring shaft, and simultaneously playing a role in stirring; when cleaning, the second scraping plate can also clean the bottom wall of the barrel body.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of a structure embodying a blade, a first flight, and a second flight;
FIG. 3 is a cross-sectional view showing the mixing shaft, waterway, water chamber and water jet in communication;
FIG. 4 is an exploded schematic view embodying a rotary joint structure;
fig. 5 is a cross-sectional view showing the internal structure of the rotary joint.
In the figure, 1, a barrel body; 11. a discharge pipe; 12. a valve; 13. a support leg; 2. a bearing plate; 3. a stirring shaft; 31. a blade; 32. a support shaft; 33. a second scraper; 34. an end plate; 341. a drip hole; 4. a fixed rod; 41. A waterway; 5. a first scraper; 51. a water chamber; 52. a water jet; 6. a drive assembly; 61. a motor; 62. a drive gear; 63. a driven gear; 7. a water pump; 71. a water pipe; 72. a water supply pipe; 8. a rotary joint; 81. an inner cylinder; 82. an outer cylinder; 83. a water filling port; 84. a water injection pipe; 85. an end cap; 86. an annular groove; 87. positioning ribs; 88. a ball; 89. a delivery hole; 90. a plug; 91. an annular seal groove; 92. and (5) sealing the rubber ring.
Detailed Description
Referring to fig. 1, a concrete mixing drum with cleaning function according to the present invention includes a drum body 1 having an open end and hollow inside, a discharge pipe 11 connected to and communicating with one end of the drum body 1 far from the open end, a valve 12 mounted on the discharge pipe 11, and a plurality of support legs 13 fixedly connected to the outer wall of the drum body 1, wherein the support legs 13 are supported on the ground, and the valve 12 is normally in a closed state.
Referring to fig. 1 and 2, a supporting plate 2 crossing an opening is fixedly connected to a barrel body 1, a stirring shaft 3 vertically penetrating through the supporting plate 2 and rotationally connected with the supporting plate through a bearing is arranged in the barrel body 1, the stirring shaft 3 and the barrel body 1 are coaxially arranged, blades 31 are fixedly connected to the stirring shaft 3, fixing rods 4 extending horizontally towards the barrel wall are symmetrically and vertically fixedly connected to the outer wall of the stirring shaft 3, and first scraping plates 5 propped against the inner wall of the barrel body 1 are fixedly connected to the end parts of the two fixing rods 4 respectively and are vertically arranged; the side walls of the stirring shaft 3 close to the bottom end are fixedly connected with supporting shafts 32 horizontally extending towards the direction of the barrel wall, a plurality of second scraping plates 33 obliquely arranged towards the same direction are fixedly connected with the lower side walls of the two supporting shafts 32 at equal intervals, the second scraping plates 33 are mutually parallel and are arranged in a logarithmic spiral curve shape by taking the discharging pipe 11 as the center, and one side of each second scraping plate 33 far away from the supporting shaft 32 is contacted with the bottom wall of the barrel body 1.
A driving assembly 6 is provided on the upper surface of the support plate 2, which drives the stirring shaft 3 to rotate, thereby driving the blades 31, the first scraper 5 and the second scraper 33 to rotate. The driving assembly 6 includes a motor 61 mounted on the support plate 2, a driving gear 62 fixedly connected to an output shaft of the motor 61, and a driven gear 63 fixedly connected to an outer wall of the stirring shaft 3 and engaged with the driving gear 62.
Referring to fig. 1 and 2, during operation, the motor 61 is started to transmit power to the stirring shaft 3 through the driving gear 62 and the driven gear 63, so that the stirring shaft 3 drives the blades 31 to rotate and starts stirring concrete in the barrel 1, in the stirring process, the first scraping plate 5 continuously scrapes off the concrete adhered to the barrel wall into the barrel 1, the possibility of hardening and adhering to the barrel wall is reduced, so that the later cleaning is facilitated, meanwhile, the stirring effect is achieved, and the second scraping plate 33 is arranged in a logarithmic spiral curve shape, so that the second scraping plate 33 continuously pushes and gathers the concrete towards the center of the barrel 1 in the rotation process along with the stirring shaft 3, meanwhile, the stirring effect is also achieved, when the concrete gathered at the center is more, the blades 31 scatter the concrete again, the concrete is circularly reciprocated, the full stirring of the concrete is achieved, the stirring quality is improved, and after the stirring is completed, the discharging is carried out through the discharging tube 11.
Referring to fig. 1 and 3, a cleaning device is further provided on the upper surface of the supporting plate 2, which can assist the scraping plate to flush the inner wall of the barrel body 1, so as to achieve the self-cleaning effect, thereby avoiding manual cleaning and improving cleaning efficiency. The cleaning device comprises a water pump 7 arranged on the bearing plate 2, a water pipe 71 connected to the water outlet of the water pump 7, a rotary joint 8 arranged between the water pipe 71 and the stirring shaft 3, and a water supply pipe 72 connected between the water inlet of the water pump 7 and the water source; the inside cavity and the bottom rigid coupling of (mixing) shaft 3 have end plate 34, and (mixing) shaft 3 is linked together with the raceway 71 through rotary joint 8, be equipped with the water route 41 with (mixing) shaft 3 intercommunication respectively in two dead levers 4, and first scraper blade 5 inside is equipped with the hydroecium 51 with the intercommunication of water route 41, and a plurality of water jet 52 have been seted up to one side that first scraper blade 5 hugged closely the staving, and water pump 7 can be carried water to first scraper blade 5 by delivery pipe 72, raceway 71, rotary joint 8, (mixing) shaft 3 and dead lever 4 in proper order to spout by water jet 52 on the first scraper blade 5, wash the inner wall of staving 1.
Referring to fig. 3, in order to prevent the pipe body from being corroded due to long-time water storage in the pipe, to reduce the service life of the pipe, a drip hole 341 with a diameter of 1-2mm is formed in the end plate 34, and the drip hole 341 is small in diameter, so that normal cleaning is not affected, and after cleaning is completed, water in the pipe is gradually discharged from the drip hole 341.
Referring to fig. 1 and 4, the rotary joint 8 includes an inner cylinder 81 and an outer cylinder 82 which are hollow in the interior and have openings at both ends, the outer cylinder 82 is sleeved outside the inner cylinder 81, a gap exists between the inner cylinder 81 and the outer cylinder, a water injection port 83 communicated with the outer cylinder 82 is formed in the side wall of the inner cylinder 81, a water injection pipe 84 communicated with the inner cylinder 82 is integrally connected to the side wall of the outer cylinder 82, a water pipe 71 is connected to the water injection pipe 84, one end of the inner cylinder 81 is in threaded connection with an end cover 85, the other end of the inner cylinder is in sealing connection and communication with the stirring shaft 3 through a flange, and when water is conveyed to the rotary joint 8, the water can enter the stirring shaft 3 through the water injection pipe 84, the water injection port 83 and the flange connection.
Referring to fig. 4 and 5, annular grooves 86 are symmetrically formed on the outer wall of the inner cylinder 81 close to two ends and the inner wall of the outer cylinder 82 close to two ends respectively, an annular channel is formed between the two opposite annular grooves 86, a positioning convex rib 87 which is convenient for aligning the two annular grooves 86 to form the annular channel is fixedly connected on the outer wall of the inner cylinder 81, a plurality of balls 88 which are matched with the size of the annular channel are arranged in the annular channel, a putting hole 89 for placing the balls 88 is formed on the outer cylinder 82 at the position corresponding to the two annular channels respectively, and a plug 90 is connected in the putting hole 89 in a threaded manner; annular seal grooves 91 are respectively formed in the outer walls, close to the two ends, of the inner cylinder 81 and located on the inner side of the annular groove 86, and sealing rubber rings 92 are installed in the annular seal grooves 91.
During assembly, the sealing rubber rings 92 are sleeved in the corresponding annular sealing grooves 91 and the end covers 85 are covered, then the outer cylinder 82 is sleeved outside the inner cylinder 81 until the end part of the outer cylinder 82 contacts with the positioning convex edges 87, an annular channel is formed between the two opposite annular grooves 86, the sealing rubber rings 92 are tightly squeezed between the inner cylinder 81 and the outer cylinder 82, at the moment, the balls 88 are placed into the annular channel one by one from the delivery openings, after the placement is finished, the delivery openings are closed through the plugs 90, and after the assembly is finished, the ball bearings are installed on the stirring shaft 3 and connected with the water delivery pipe 71.
Referring to fig. 1 and 3, during cleaning, the motor 61 and the water pump 7 are started, the motor 61 drives the first scraping plate 5 and the second scraping plate 33 to rotate through the stirring shaft 3, so that the first scraping plate 5 cleans the inner side wall of the barrel body 1, and the second scraping plate 33 cleans the inner bottom wall of the barrel body 1; while the stirring shaft 3 rotates, the stirring shaft drives an inner cylinder 81 (see fig. 5) of the rotary joint 8 to rotate, so that interference between rotation of the stirring shaft 3 and water delivery of the water delivery pipe 71 is counteracted, and the arrangement of the balls 88 not only can limit the inner cylinder 81 and the outer cylinder 82, but also can reduce friction generated when the inner cylinder 81 and the outer cylinder 82 relatively rotate; in the cleaning process, the water pump 7 sequentially conveys water into the first scraping plate 5 through the water supply pipe 72, the water conveying pipe 71, the rotary joint 8, the stirring shaft 3 and the fixing rod 4, and the water is sprayed out from the water spraying port 52 onto the inner side wall of the barrel body 1, so that the water can be scraped and flushed, the flushed water falls into the barrel bottom, and after the cleaning is finished, the mixture of the water and the concrete is discharged from the discharging pipe 11 under the stirring of the second scraping plate 33.
The embodiments of the present invention are all preferred embodiments of the present invention, and are not intended to limit the scope of the present invention in this way, therefore: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (5)
1. The utility model provides a concrete mixing drum with clean function, includes inside cavity and one end be open staving (1), connect and communicate in staving (1) keep away from discharging pipe (11) of open one end, install valve (12) on discharging pipe (11), and rigid coupling are in order to carry out landing leg (13) that support it on staving (1) outer wall, its characterized in that: the concrete washing device comprises a barrel body (1), and is characterized in that a supporting plate (2) crossing an opening is fixedly connected to the barrel body (1), a stirring shaft (3) vertically penetrating through the supporting plate (2) and being in rotary connection with the supporting plate is arranged in the barrel body (1), the stirring shaft (3) and the barrel body (1) are coaxially arranged, a blade (31) is fixedly connected to the stirring shaft (3), the blade (31) is spirally wound on the outer wall of the stirring shaft (3) along the length direction of the stirring shaft (3), fixing rods (4) horizontally extending towards the barrel wall are symmetrically and vertically fixedly connected to the outer wall of the stirring shaft (3), first scraping plates (5) which are in butt joint with the inner wall of the barrel body (1) and are vertically arranged are fixedly connected to the end parts of the fixing rods (4), and a driving assembly (6) capable of driving the stirring shaft (3) to drive the blade (31) and the first scraping plates (5) to synchronously rotate so as to stir concrete and a cleaning device capable of flushing the inner wall of the barrel body (1);
the cleaning device comprises a water pump (7) arranged on the bearing plate (2), a water delivery pipe (71) connected to the water outlet of the water pump (7), a rotary joint (8) arranged between the water delivery pipe (71) and the stirring shaft (3), and a water supply pipe (72) connected between the water inlet of the water pump (7) and a water source;
The stirring shaft (3) is hollow and is fixedly connected with an end plate (34) at the bottom end, the stirring shaft (3) is communicated with the water delivery pipe (71) through the rotary joint (8), waterways (41) communicated with the stirring shaft (3) are respectively arranged in the two fixing rods (4), a water chamber (51) communicated with the waterways (41) is arranged in the first scraping plate (5), and a plurality of water spray ports (52) are formed in one side, close to the barrel wall, of the first scraping plate (5);
The rotary joint (8) comprises an inner cylinder (81) and an outer cylinder (82) which are hollow in the inside and are open at two ends, the outer cylinder (82) is rotatably sleeved outside the inner cylinder (81), a water injection port (83) communicated with the outer cylinder (82) is formed in the side wall of the inner cylinder (81), a water injection pipe (84) communicated with the inside of the outer cylinder is integrally connected to the side wall of the outer cylinder (82), and the water delivery pipe (71) is connected to the water injection pipe (84); one end of the inner cylinder (81) is in threaded connection with an end cover (85), and the other end of the inner cylinder is in sealing connection with the stirring shaft (3) through a flange;
Annular grooves (86) are symmetrically formed in the outer wall, close to two ends, of the inner cylinder (81) and the inner wall, close to two ends, of the outer cylinder (82), annular channels are formed between the two opposite annular grooves (86), a plurality of balls (88) matched with the annular channels in size are arranged in the annular channels, a throwing hole (89) for placing the balls (88) is formed in the position, corresponding to the two annular channels, of the outer cylinder (82), and plugs (90) are connected with the inner threads of the throwing hole (89);
The inner cylinder (81) is close to two ends, annular sealing grooves (91) are respectively formed in the outer wall of the inner side of the annular groove (86), and sealing rubber rings (92) are arranged in the annular sealing grooves (91);
The stirring device is characterized in that supporting shafts (32) horizontally extending towards the barrel wall are fixedly connected to the side walls, close to the bottom end, of the stirring shaft (3), a plurality of second scrapers (33) obliquely arranged towards the same direction are fixedly connected to the lower side walls of the supporting shafts (32) at equal intervals, the second scrapers (33) are arranged in a logarithmic spiral curve shape by taking the discharging pipe (11) as the center, and one side, away from the supporting shafts (32), of each second scraper (33) is contacted with the bottom wall of the barrel body (1).
2. A concrete mixing tank with cleaning function according to claim 1, characterized in that: the driving assembly (6) comprises a motor (61) arranged on the bearing plate (2), a driving gear (62) fixedly connected to an output shaft of the motor (61), and a driven gear (63) fixedly connected to the outer wall of the stirring shaft (3) and meshed with the driving gear (62).
3. A concrete mixing tank with cleaning function according to claim 1, characterized in that: the outer wall of the inner cylinder (81) is fixedly connected with a positioning convex rib (87) which is convenient for aligning the two annular grooves (86).
4. A concrete mixing tank with cleaning function according to claim 1, characterized in that: the end plate (34) is provided with a water dripping hole (341) with the aperture of 1-2 mm.
5. A concrete mixing tank with cleaning function according to claim 1, characterized in that: the stirring shaft (3) is rotatably connected with the bearing plate (2) through a bearing.
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| CN111791365A (en) * | 2020-07-13 | 2020-10-20 | 史文献 | Mixing device for regularly scraping cement for decoration and application thereof |
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| CN113695333A (en) * | 2021-08-12 | 2021-11-26 | 三门峡兴隆混凝土有限公司 | Hopper belt cleaning device |
| CN113681712A (en) * | 2021-09-01 | 2021-11-23 | 何宇 | Agitated vessel for engineering construction |
| CN114833947A (en) * | 2022-06-02 | 2022-08-02 | 张德清 | Concrete mixer with cleaning device and using method thereof |
| CN115069509B (en) * | 2022-07-15 | 2023-05-02 | 大连华工创新科技股份有限公司 | Automatic feeding mechanism for cleaning barrel and cleaning glue |
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