GB2268048A - Cleaning concrete mixer drums - Google Patents
Cleaning concrete mixer drums Download PDFInfo
- Publication number
- GB2268048A GB2268048A GB9213997A GB9213997A GB2268048A GB 2268048 A GB2268048 A GB 2268048A GB 9213997 A GB9213997 A GB 9213997A GB 9213997 A GB9213997 A GB 9213997A GB 2268048 A GB2268048 A GB 2268048A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drum
- frusto
- cleaning
- conical portion
- chassis
- 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.)
- Granted
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 28
- 239000000463 material Substances 0.000 claims description 7
- 230000001154 acute effect Effects 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S1/00—Cleaning of vehicles
- B60S1/62—Other vehicle fittings for cleaning
- B60S1/66—Other vehicle fittings for cleaning for cleaning vehicle exterior
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/10—Maintenance of mixers
- B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
-
- 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
- B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
- B08B9/0808—Cleaning containers having tubular shape, e.g. casks, barrels, drums by methods involving the use of tools, e.g. by brushes, scrapers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P3/00—Vehicles adapted to transport, to carry or to comprise special loads or objects
- B60P3/16—Vehicles adapted to transport, to carry or to comprise special loads or objects for carrying mixed concrete, e.g. having rotatable drums
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Transportation (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Cleaning In General (AREA)
Abstract
Apparatus for cleaning the outer surfaces of rotatably mounted drums e.g. a concrete mixer drum, mounted on the rear sub-chassis of a truck, comprises means for flexibly contacting (81a) at least part (60a, 55a, 50a, 45a) of the outer surface such that, in use, when the drum (5a) rotates the flexible contact means (81a) brushes against and cleans the part (60a, 55a, 50a, 45a) of the outer surface. <IMAGE>
Description
Drum Cleaning Apparatus and Method
This invention relates to a drum cleaning apparatus and method, and particularly, but not exclusively, to an apparatus and method for the cleaning of rotatable concrete mixer drums.
Concrete mixer drums, mounted on the rear sub-chassis of a truck are known. Normally, such drums are rotated constantly on delivering a load from a plant to a customers site. Smaller, free standing concrete mixer drums used, for example, on building sites are also known.
A problem exists with presently known concrete mixer drums in that during use the outer surface of such drums becomes at least partially covered with materials such as concrete and/or dirt. In order to remove such materials the drum is washed or hosed down regularly - normally after each usage. Since the drum may be used daily, it is apparent that drum cleaning is a laborious, time consuming and tedious task.
On occasions it is also a dangerous task, since acid materials may have to be used in order to sufficiently clean the drum.
It is an object of the present invention to obviate or mitigate the aforementioned problems/disadvantages.
Accordingly, one aspect of the present invention provides apparatus for cleaning a drum, the drum being rotatable about its longitudinal axis, the apparatus comprising means for mounting the apparatus substantially along an outer surface of the drum, and including means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
Preferably, the apparatus is mounted in a longitudinally extending relationship with the outer surface of the drum.
The flexible contact means may be one or more brushes, preferably having bristles of approximately 4" in length.
The longitudinal axis of the drum is preferably inclined at an acute angle to the horizontal such that a frontmost end of the drum is lowermost and a rearmost input/output end of the drum is uppermost, the flexible contact means contacting the drum at a lower facing part of the outer surface thereof.
The drum may be mounted on a rear sub-chassis of a truck and comprise a dished end portion having a first, smallest end which comprises the frontmost end of the drum, a second, largest end of the dished end portion adjoining a first, smallest end of a first frusto-conical portion, a second, largest end of the first frusto-conical portion adjoining a first end of a cylindrical portion, a second end of the cylindrical portion adjoining a first, largest end of a second frusto-conical portion, a second, smallest end of the second frusto-conical portion adjoining a first, largest end of a third frusto-conical portion, a second, smallest end of the third frustoconical portion which comprises the rearmost end of the drum being open to allow for input/output of materials to be, or which have been mixed.
In this case, the at least part of the outer surface of the drum may comprise an outer surface of the third frusto-conical portion. The mounting means may, therefore, comprise a first mount fixedly attached to an
A-section mounted on the sub-chassis to the rear of the drum.
The at least part of the outer surface of the drum may comprise or also comprise an outer surface of the second frusto-conical portion. The mounting means may, therefore, also comprise a second mount attached to the sub-chassis.
The at least part of the outer surface of the drum may comprise or also comprise an outer surface of the cylindrical portion. The mounting means may, therefore, also comprise a third mount attached to the sub-chassis.
The at least part of the outer surface of the drum may comprise or also comprise an outer surface of the first frusto-conical portion. The mounting means may, therefore, also comprise a fourth mount attached to the sub-chassis.
The at least part of the outer surface of the drum may comprise or also comprise an outer surface of the dished end portion. The mounting means may, therefore, also comprise a fifth mount attached to a gear housing.
According to a second aspect of the present invention, there is provided a drum which is rotatable about its longitudinal axis, also providing apparatus for cleaning the drum, the apparatus comprising means for mounting the cleaning apparatus substantially along an outer surface of the drum, and means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
According to a third aspect of the present invention there is provided a truck having a drum mounted on a rear sub-chassis thereof, a longitudinal axis of the drum being inclined at an acute angle to the horizontal, such that a frontmost end of the drum is lowermost and a rearmost input/output end of the drum is uppermost, also having apparatus for cleaning the drum, the apparatus comprising means for mounting the cleaning apparatus substantially along an outer surface of the drum, and means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
According to a fourth aspect of the present invention there is provided a method of cleaning a drum, wherein the drum is rotated about its longitudinal axis, comprising fixing cleaning apparatus comprising mounting means and flexible contact means substantially along an outer surface of the drum by means of the mounting means, the flexible contact means being in contact with at least part of the outer surface of the drum, such that, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
An embodiment of the present invention will now be described, by way of example only, with reference to the accompanying drawings, which are:
Fig 1 a view from the right hand side and to the rear of a conventional concrete mixer drum mounted on the rear sub-chassis of a truck;
Fig 2 a schematic view from the left hand side of a drum having a first embodiment of a cleaning apparatus according to the present invention mounted there along;
Fig 3 an enlarged view of part of the drum and cleaning apparatus according to Fig 2;
Fig 4 an enlarged view of another part of the drum and cleaning apparatus according to Fig 2; and
Fig 5 an enlarged view of a rearmost part of a drum having a second embodiment of cleaning apparatus according to the present invention mounted there along.
Referring to Fig 1 there is shown a conventional concrete mixer drum, generally designated 5, mounted on a rear sub-chassis 10 of a truck 15.
A longitudinal axis of the drum 5 is inclined at an acute angle to the horizontal, such that a frontmost end 20 of the drum 5 is lowermost, and a rearmost input/output end 20 of the drum 5 is uppermost.
Inside the drum there are provided blades and capping, as is known in the art. Since the blades and capping are not part of the present invention then these shall not be discussed any further herein.
Mounted on the rear sub-chassis 10 in front of the frontmost end 20 of the drum 5 and behind a cab 30 of the truck 16, is a gear housing 35. Gearing (not shown) connects the gear housing 35 to a drive mechanism (not shown) at the frontmost end 20 of the drum 5. The gearing is designed to allow rotational movement of the drum 5 along its longitudinal axis in either clockwise or anti clockwise directions in order either to input and mix concrete therein or to output mixed concrete therefrom.
At the uppermost end 25 of the drum 5 there is provided an A-section 40 which is suitably mounted to the sub-chassis 10. The purpose of the A-section 40 is to allow input of concrete to, and output of concrete from, the rearmost end 25 of the drum 5.
Referring now to Figs 2 to 5 there is provided a concrete mixer drum, generally designated 5a mounted on a rear sub-chassis 10a of a truck (not shown). The longitudinal axis of the drum 5a is inclined at an acute angle to the horizontal such that a frontmost end 20a of the drum 5a is lowermost and a rearmost input/output end 25a of the drum 5a is uppermost.
The drum 5a comprises a dished end potion 45a having a first smallest end which comprises the frontmost end of the drum 5a, a second largest end of the dished end portion 45a adjoining a first smallest end of a frustoconical portion 50a, a second, largest end of the frustoconical portion adjoining a first end of the cylindrical portion 55a, a second end of the cylindrical portion 55a adjoining a first largest end of a second frusto-conical portion 60a, a second smallest end of the second frustoconical portion 60a adjoining a first largest end of a third frusto-conical portion 65a, a second smallest end of the third frusto-conical portion - which comprises the rearmost end 25a of the drum 5a - being open to allow for input of materials to be mixed or output of materials which have been mixed, depending upon the direction of rotation of the drum.
As can be seen most clearly from Fig 2 apparatus for cleaning the third frusto-conical portion 65a of the drum comprises a first mount 75a (shown in outline) a first end of which is attached to an A-frame (not shown), while a second end of which is attached to flexible contact means in the form of a brush 80a which is mounted substantially along an outer surface of the third frusto-conical portion 65a.
Upon rotation of the drum in either a clockwise or anti-clockwise direction the first brush 80a brushes against, and thereby cleans, the outer surface of the third frusto-conical portion 65a.
As can also be seen from Fig 2 apparatus for cleaning the second frusto-conical portion 60a, cylindrical portion 55a, first frusto-conical portion 50a and dished end portion 45a may be provided. The apparatus for the second frusto-conical portion 60a comprises a second mount 76a, a first end of which is mounted on the sub-chassis 10a while a second end attached to a flexible contacting means in the form of a brush 81a which contacts the outer surface of the second frusto-conical portion 60a. The apparatus for the cylindrical portion comprises a third mount, a first end of which is attached to the sub-chassis 10a, while a second end of which is attached a flexible contacting means in the form of a brush 82a which contacts the outer surface of the cylindrical portion 55a.The apparatus for the first frusto-conical portion 50a comprises a fourth mount 78a, a first end of which is attached to the sub-chassis 10a while a second end of which is attached to a flexible contacting means in the form of a brush which brushes against the outer surface of the first frusto-conical portion 50a. The apparatus for the dished end portion comprises a fifth mount 79a (shown in outline) the first end of which is attached to a gear housing (not shown) while a second end of which is attached to a flexible contacting means in the form of a brush 84a which brushes the outer surface of the dished end portion 45a.
As can best be seen from Fig 3 and Fig 4, the adjacent ends of the second, third, fourth and fifth brushes may be in abutting contact such that the second, third, fourth and fifth brushes essentially comprise a continuous brush along the outer surface of the second frusto-conical portion 60a, cylindrical portion 55a, first frusto-conical portion 50a and dished end portion 55a.
Further, the second, third, fourth and fifth brushes 81a, 82a, 83a and 84a may be mounted to one side of the lowermost side of the outer surface of the drum 5a - as can best be seen from Fig 3.
As can be seen from Fig 5, the brush 80a may be mounted on an upper facing side of the outer surface of the third frusto-conical portion 65a. This arrangement may be particularly advantageous since access to the first brush 80a is more easily available if the brush 80a is so located.
The embodiments of the present invention hereinbefore disclosed are given by way of example only, and are not meant to limit the scope of the invention in any way.
Particularly it should be understood that the brush or brushes may be provided along only part or the whole of the outer surface of the drum. Further the brush or brushes may be suitably located either on an upper facing side or a lower facing side of the outer surface of the drum.
Finally, it should be appreciated that more than one brush may be provided at any given distance along the drum. For example, one brush may be provided on a lower facing side of the outer surface of the drum while a further brush is provided on an upper facing side of the outer surface of the drum.
Claims (22)
1. Apparatus for cleaning a drum, the drum being rotatable about its longitudinal axis, the apparatus comprising means for mounting the apparatus substantially along an outer surface of the drum, and including means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
2. Apparatus as claimed in claim 1, wherein the apparatus is mounted in a substantially longitudinally extending relationship with the outer surface of the drum.
3. Apparatus as claimed in any preceding claim, wherein the flexible contact means comprises one or more brushes.
4. Apparatus as claimed in claim 3, wherein the brush(es) has/have bristles of approximately 4" in length.
5. Apparatus as claimed in any preceding claim, wherein the longitudinal axis of the drum is inclined at an acute angle to the horizontal such that a frontmost end of the drum is lowermost and a rearmost input/output end of the drum is uppermost, the flexible contact means contacting the drum at a lower facing part of the outer surface thereof.
6. Apparatus as claimed in any preceding claim, wherein the drum is mounted on a rear sub-chassis of a truck, and the drum comprises a dished end portion having a first, smallest end which comprises the frontmost end of the drum, a second, largest end of the dished end portion adjoining a first, smallest end of a first frusto-conical portion, a second, largest end of the first frusto-conical portion adjoining a first end of a cylindrical portion, a second end of the cylindrical portion adjoining a first, largest end of a second frusto-conical portion, a second, smallest end of the second frusto-conical portion adjoining a first, largest end of a third frusto-conical portion, a second, smallest end of the third frustoconical portion which comprises the rearmost end of the drum being open to allow for input/output of materials to be, or which have been mixed.
7. Apparatus as claimed in claim 6, wherein the at least part of the outer surface of the drum comprises an outer surface of the third frusto-conical portion.
8. Apparatus as claimed in claim 6, wherein the mounting means comprises a first mount fixedly attached to an Asection mounted on the sub-chassis to the rear of the drum.
9. Apparatus as claimed in any of claims 6 to 8, wherein the at least part of the outer surface of the drum comprises or also comprises an outer surface of the second frusto-conical portion.
10. Apparatus as claimed in claim 9, wherein the mounting means comprises or also comprises a second mount attached to the sub-chassis.
11. Apparatus as claimed in any of claims 6 to 10, wherein the at least part of the outer surface of the drum comprises or also comprises an outer surface of the cylindrical portion.
12. Apparatus as claimed in claim 11, wherein the mounting means comprises or also comprises a third mount attached to the sub-chassis.
13. Apparatus as claimed in any of claims 6 to 12, wherein the at least part of the outer surface of the drum comprises or also comprises an outer surface of the first frusto-conical portion.
14. Apparatus as claimed in claim 13, wherein the mounting means comprises or also comprises a fourth mount attached to the sub-chassis.
15. Apparatus as claimed in any of claims 6 to 14, wherein the at least part of the outer surface of the drum comprises or also comprises an outer surface of the dished end portion.
16. Apparatus as claimed in claim 15, wherein the mounting means comprises or also comprises a fifty mount attached to a gear housing.
16. A drum which is rotatable about its longItudinal axis, also providing apparatus for cleaning the drum, the apparatus comprising means for mounting the cleaning apparatus substantially along an outer surface of the drum, and means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
17. A truck having a drum mounted on a rear sub-chassis thereof, a longitudinal axis of the drum being inclined at an acute angle to the horizontal, such that a frontmost end of the drum is lowermost and a rearmost input/output end of the drum is uppermost, also having apparatus for cleaning the drum, the apparatus comprising means for mounting the cleaning apparatus substantially along an outer surface of the drum, and means for flexibly contacting at least part of the outer surface such that, in use, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
18. A method of cleaning a drum, wherein the drum is rotated about its longitudinal axis, comprising fixing cleaning apparatus comprising mounting means and flexible contact means substantially along an outer surface of the drum by means of the mounting means, the flexible contact means being in contact with at least part of the outer surface of the drum, such that, when the drum rotates the flexible contact means brushes against and cleans the part of the outer surface.
19. Apparatus for cleaning a drum as hereinbefore described with reference to the accompanying drawings.
20. A drum as hereinbefore described with reference to the accompanying drawings.
21. A truck as hereinbefore with reference to the accompanying drawings.
22. A method of cleaning a drum as hereinbefore described with reference to the accompanying drawings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9213997A GB2268048B (en) | 1992-07-01 | 1992-07-01 | Improvements relating to concrete mixers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB9213997A GB2268048B (en) | 1992-07-01 | 1992-07-01 | Improvements relating to concrete mixers |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9213997D0 GB9213997D0 (en) | 1992-08-12 |
| GB2268048A true GB2268048A (en) | 1994-01-05 |
| GB2268048B GB2268048B (en) | 1996-07-03 |
Family
ID=10718038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9213997A Expired - Fee Related GB2268048B (en) | 1992-07-01 | 1992-07-01 | Improvements relating to concrete mixers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2268048B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6640817B2 (en) * | 1998-10-30 | 2003-11-04 | Thomas G. Harmon | Method for removing concrete from interior surfaces of a concrete mixing drum |
| CN103204140A (en) * | 2013-04-26 | 2013-07-17 | 四川华通特种工程塑料研究中心有限公司 | Cleaning mechanism for concrete mixer truck |
| EP2789404A1 (en) * | 2013-04-12 | 2014-10-15 | Cifa S.P.A. | Apparatus for cleaning a concrete mixer drum |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103381623B (en) * | 2012-05-03 | 2016-06-08 | 苏康 | The device of cleaning stirring drum of concrete agitating truck outside surface |
| CN104441245A (en) * | 2013-09-22 | 2015-03-25 | 江苏卡威专用汽车制造有限公司 | Cleaning mechanism of mixer car and mixer car with cleaning mechanism |
| CN104340182B (en) * | 2014-10-29 | 2016-07-06 | 浙江同泰建设集团有限公司 | A kind of rinser of mixing drum |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362215A (en) * | 1970-10-02 | 1974-07-30 | Dynapac Maskin Ab | Device for scraping rollers |
| GB1483047A (en) * | 1974-08-17 | 1977-08-17 | Fearon E | Devices for removing matter picked up by vehicle wheels |
| GB1538341A (en) * | 1975-01-17 | 1979-01-17 | Nilsson M | Device for preventing adhesion of material to rolls of a road roller |
| WO1983001234A1 (en) * | 1981-10-09 | 1983-04-14 | Christensen, Jon, C. | Flexible cleaner and guard for an idler wheel of a track assembly |
-
1992
- 1992-07-01 GB GB9213997A patent/GB2268048B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1362215A (en) * | 1970-10-02 | 1974-07-30 | Dynapac Maskin Ab | Device for scraping rollers |
| GB1483047A (en) * | 1974-08-17 | 1977-08-17 | Fearon E | Devices for removing matter picked up by vehicle wheels |
| GB1538341A (en) * | 1975-01-17 | 1979-01-17 | Nilsson M | Device for preventing adhesion of material to rolls of a road roller |
| WO1983001234A1 (en) * | 1981-10-09 | 1983-04-14 | Christensen, Jon, C. | Flexible cleaner and guard for an idler wheel of a track assembly |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6640817B2 (en) * | 1998-10-30 | 2003-11-04 | Thomas G. Harmon | Method for removing concrete from interior surfaces of a concrete mixing drum |
| EP2789404A1 (en) * | 2013-04-12 | 2014-10-15 | Cifa S.P.A. | Apparatus for cleaning a concrete mixer drum |
| CN103204140A (en) * | 2013-04-26 | 2013-07-17 | 四川华通特种工程塑料研究中心有限公司 | Cleaning mechanism for concrete mixer truck |
Also Published As
| Publication number | Publication date |
|---|---|
| GB9213997D0 (en) | 1992-08-12 |
| GB2268048B (en) | 1996-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20030701 |