CA2446078A1 - Trench-filling machine fitted with a crushing device - Google Patents
Trench-filling machine fitted with a crushing device Download PDFInfo
- Publication number
- CA2446078A1 CA2446078A1 CA 2446078 CA2446078A CA2446078A1 CA 2446078 A1 CA2446078 A1 CA 2446078A1 CA 2446078 CA2446078 CA 2446078 CA 2446078 A CA2446078 A CA 2446078A CA 2446078 A1 CA2446078 A1 CA 2446078A1
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- CA
- Canada
- Prior art keywords
- machine
- trench
- cndot
- fitted
- filling machine
- 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.)
- Abandoned
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- Disintegrating Or Milling (AREA)
Abstract
Trench-filling machine of the type comprising a motor vehicle means designed to collect filling material in front of the machine and direct it to a sieve, and means designed to discharge the sieved material into the trench. The machine includes means designed to crush the collected material before said material is directed towards said sieve.
Description
s z "TRENCH-FILLING tVIACHINE FITTED WITH A CRUSHING DEi/ICE"
This invention relates to a trench-filling machine of the type constituted by a motor vehicle on which a chassis is mounted; said chassis supports a conveyor belt which collects stones and excavated material in front of the machine while the machine advances and directs them towards the back of the machine, where a sieve separates the finer parts, which fall onto a second conveyor belt that discharges them into the trench, from the coarser parts, which are discharged behind the machine.
A characteristic feature of the machine according to the invention is that a crusher device associated with the collection means is fitted in front of the vehicle to crush the stones and thus modify the particle size of the material collected to meet various requirements.
Said crusher is preferably constituted by a 'hammer mi(I fitted to a pair of side plates which also guide the material towards the mill, where it is crushed in readiness for collection by the machine.
The filling machine according to the invention can consequently operate on any kind of terrain, with no need to procure filling materials of a suitable particle size.
The invention relates to the sector of machinery used for laying pipes, oil pipelines and the like, which are usually laid on the bottom of trenches that are filled in to protect the piping.
Excavation is usually performed by equipment which deposits the excavated material on the edge of the trench.
When the pipes have been laid on the bottom of the trench, a second z machine, which moves parallel to the trench, fills it in using the excavated material previously deposited along the edge of the trench.
However, it is not sufficient to push the material into the trench for this purpose, because in order to ensure that the pipes are not damaged, they must first be covered with fine material, following which the trench can be filled in with stones and coarse material.
For this reason, machines have been designed which sieve the material, separating the finer parts (which fail directly into the trench) from the coarser parts (which are again deposited on the edge of the trench ready to be used for the upper filling layer.
One of these machines, described in European patent application no.
0,965,697 by the same inventor, comprises a vehicle pulled, for example, by a tractor or other vehicle, on which is fitted a hopper that is filled with material by a shovel that follows the vehicle.
Below the hopper is a sieve that separates the finer parts of the material, which fall onto a conveyor belt below; said belt discharges said material into the trench while the machine advances.
The stones and coarser materials are again discharged at the edge of the trench.
Self-propelled machines are also known which are fitted with a collector device at the front, usually in the form of a rotary belt that starts at ground level, towards which bait a pair of guide plates direct the collected material as the machine advances.
Said conveyor belt collects the material and directs it towards the back of the machine, where a sieve separates the finer frorn the coarser parts.
The finer parts always fall onto a conveyor belt which moves at right angles to the direction of advance of the machine to discharge the sieved material into the trench, whereas stones and coarser rubble are discharged at the back.
Although these known machines are effective, they suffer from some limitations because the material excavated from the trench often does not include a sufficient amount of fine parts to cover the pipes, with the result that material of the right size needs 'to be procured to perform the first filling stage, which involves higher costs.
LO This problem is solved by the present invention, which offers a trench-filling machine characterised by the fact that it is associated with a crusher device, fitted at the fr~nt of the machine, which crushes and reduces the size of the larger stones so that a quantity of fine material sufficient to cover the pipes is discharged, with no need to obtain supplies elsewhere.
l.5 The machine, whose operation is fully independent, thus runs along the edge of the trench, sorting the material and fiiling the trench as it proceeds, with a considerable saving of time and cost.
This invention will now be described in detail, by way of example but not of limitation, by reference to the annexed figures wherein:
20 ~ figure 1 schematically illustrates a side view of a machine according to the invention;
~ figure 2 schematically illustrates a plan view of a machine according to the invention;
~ figure 3 shows a detail of the crusher device in cross-section.
25 With reference to figure 1, the machine according to the invention comprises a vehicle indicated as 1, mounted on tracks 2 which allow it to advance on the ground along the edge of the trench, driven by an engine 3.
A structure 5 is hinged to the upper end of a chassis 4, mounted on vehicle 1, in such a way that said structure can rotate round a substantially horizontal shaft 6 perpendicular to the direction of advance of the vehicle.
A loading device 7, constituted by a conveyor belt which collar>ts the material on the ground in front of the machine and discharges it at the back onto a vibrating sieve 8, is fitted to structure 5.
A conveyor belt 9, fitted below the sieve, moves in a direction substantially perpendicular to the direction of advance of the machine and projects from it, so as to discharge the material at the side of the machine, into the trench.
A characteristic feature of the invention is that it includes a crusher device, shown as no. 10 in figure 1, associated with and fitted in front of collection means 7.
In particular, the crusher is constituted by a mill 11 fitted on a pair of side .
plates 12, 12' (figure 2j which open forwards to collect and convey the material on the ground to the mill when the machine moves along the trench.
The crusher moves together with the plates and collection belt 7, at the same height, but could also be installed in such a way that its height can be adjusted independently of the other devices.
The mill, which is more clearly shown in figure 3, comprises a shaft 13 fitted to side plates 12, 12'; a set of supports 14, fitted at equidistant ~J
angles along the entire circumference, is connected to the said shaft, and a set of hammers 15 is hinged to each of the said supports.
Shaft 13 is made to rotate by a pair of hydraulic motors 96 fuelled by a pressurised fluid conveyed from a pump, not illustrated in the figure, driven by motor 3 of the machine.
A mill of this type is illustrated in Italian patent no. 1,289,402, to which reference should be made for further details.
Mill 11 is associated with a grid 17 situated between the mill and collection belt 7.
The device operates as follows.
in order to fill the trench when the pipes have been laid, the machine is driven along the edge of the trench where the excavated material has been collected.
Tracks 2 advance the vehicle with plates 12, 12', which rest on the ground and collect the material, directing it towards the centre, where it is engaged by mill 10.
Said mill is caused to rotate at high speed by hydraulic motors 16.
Hammers 15 crush the stones as a result of their motion, striking them directly.
The crushed material is collected by belt 7, which directs it towards the back of the machine and discharges it onto sieve S.
The vibrations of the sieve cause the finer parts to fail onto conveyor belt 9, while the remaining coarser parts are discharged onto the ground behind the machine.
This system ensures that a sufficient quantity of fine material is available to cover the pipes laid, so that they are not damaged by other material discharged into the trench.
The use of a pair of hydraulic motors fitted directly to the mill shaft instead of the conventional belt and pulley systems reduces the size of the assembly and gives greater design freedom, as no constraints are imposed by the presence of the mechanical transmissions used in known machines.
An expert in the field could devise various modifications and variations, all of which should be deemed to fall within the ambit of this invention.
This invention relates to a trench-filling machine of the type constituted by a motor vehicle on which a chassis is mounted; said chassis supports a conveyor belt which collects stones and excavated material in front of the machine while the machine advances and directs them towards the back of the machine, where a sieve separates the finer parts, which fall onto a second conveyor belt that discharges them into the trench, from the coarser parts, which are discharged behind the machine.
A characteristic feature of the machine according to the invention is that a crusher device associated with the collection means is fitted in front of the vehicle to crush the stones and thus modify the particle size of the material collected to meet various requirements.
Said crusher is preferably constituted by a 'hammer mi(I fitted to a pair of side plates which also guide the material towards the mill, where it is crushed in readiness for collection by the machine.
The filling machine according to the invention can consequently operate on any kind of terrain, with no need to procure filling materials of a suitable particle size.
The invention relates to the sector of machinery used for laying pipes, oil pipelines and the like, which are usually laid on the bottom of trenches that are filled in to protect the piping.
Excavation is usually performed by equipment which deposits the excavated material on the edge of the trench.
When the pipes have been laid on the bottom of the trench, a second z machine, which moves parallel to the trench, fills it in using the excavated material previously deposited along the edge of the trench.
However, it is not sufficient to push the material into the trench for this purpose, because in order to ensure that the pipes are not damaged, they must first be covered with fine material, following which the trench can be filled in with stones and coarse material.
For this reason, machines have been designed which sieve the material, separating the finer parts (which fail directly into the trench) from the coarser parts (which are again deposited on the edge of the trench ready to be used for the upper filling layer.
One of these machines, described in European patent application no.
0,965,697 by the same inventor, comprises a vehicle pulled, for example, by a tractor or other vehicle, on which is fitted a hopper that is filled with material by a shovel that follows the vehicle.
Below the hopper is a sieve that separates the finer parts of the material, which fall onto a conveyor belt below; said belt discharges said material into the trench while the machine advances.
The stones and coarser materials are again discharged at the edge of the trench.
Self-propelled machines are also known which are fitted with a collector device at the front, usually in the form of a rotary belt that starts at ground level, towards which bait a pair of guide plates direct the collected material as the machine advances.
Said conveyor belt collects the material and directs it towards the back of the machine, where a sieve separates the finer frorn the coarser parts.
The finer parts always fall onto a conveyor belt which moves at right angles to the direction of advance of the machine to discharge the sieved material into the trench, whereas stones and coarser rubble are discharged at the back.
Although these known machines are effective, they suffer from some limitations because the material excavated from the trench often does not include a sufficient amount of fine parts to cover the pipes, with the result that material of the right size needs 'to be procured to perform the first filling stage, which involves higher costs.
LO This problem is solved by the present invention, which offers a trench-filling machine characterised by the fact that it is associated with a crusher device, fitted at the fr~nt of the machine, which crushes and reduces the size of the larger stones so that a quantity of fine material sufficient to cover the pipes is discharged, with no need to obtain supplies elsewhere.
l.5 The machine, whose operation is fully independent, thus runs along the edge of the trench, sorting the material and fiiling the trench as it proceeds, with a considerable saving of time and cost.
This invention will now be described in detail, by way of example but not of limitation, by reference to the annexed figures wherein:
20 ~ figure 1 schematically illustrates a side view of a machine according to the invention;
~ figure 2 schematically illustrates a plan view of a machine according to the invention;
~ figure 3 shows a detail of the crusher device in cross-section.
25 With reference to figure 1, the machine according to the invention comprises a vehicle indicated as 1, mounted on tracks 2 which allow it to advance on the ground along the edge of the trench, driven by an engine 3.
A structure 5 is hinged to the upper end of a chassis 4, mounted on vehicle 1, in such a way that said structure can rotate round a substantially horizontal shaft 6 perpendicular to the direction of advance of the vehicle.
A loading device 7, constituted by a conveyor belt which collar>ts the material on the ground in front of the machine and discharges it at the back onto a vibrating sieve 8, is fitted to structure 5.
A conveyor belt 9, fitted below the sieve, moves in a direction substantially perpendicular to the direction of advance of the machine and projects from it, so as to discharge the material at the side of the machine, into the trench.
A characteristic feature of the invention is that it includes a crusher device, shown as no. 10 in figure 1, associated with and fitted in front of collection means 7.
In particular, the crusher is constituted by a mill 11 fitted on a pair of side .
plates 12, 12' (figure 2j which open forwards to collect and convey the material on the ground to the mill when the machine moves along the trench.
The crusher moves together with the plates and collection belt 7, at the same height, but could also be installed in such a way that its height can be adjusted independently of the other devices.
The mill, which is more clearly shown in figure 3, comprises a shaft 13 fitted to side plates 12, 12'; a set of supports 14, fitted at equidistant ~J
angles along the entire circumference, is connected to the said shaft, and a set of hammers 15 is hinged to each of the said supports.
Shaft 13 is made to rotate by a pair of hydraulic motors 96 fuelled by a pressurised fluid conveyed from a pump, not illustrated in the figure, driven by motor 3 of the machine.
A mill of this type is illustrated in Italian patent no. 1,289,402, to which reference should be made for further details.
Mill 11 is associated with a grid 17 situated between the mill and collection belt 7.
The device operates as follows.
in order to fill the trench when the pipes have been laid, the machine is driven along the edge of the trench where the excavated material has been collected.
Tracks 2 advance the vehicle with plates 12, 12', which rest on the ground and collect the material, directing it towards the centre, where it is engaged by mill 10.
Said mill is caused to rotate at high speed by hydraulic motors 16.
Hammers 15 crush the stones as a result of their motion, striking them directly.
The crushed material is collected by belt 7, which directs it towards the back of the machine and discharges it onto sieve S.
The vibrations of the sieve cause the finer parts to fail onto conveyor belt 9, while the remaining coarser parts are discharged onto the ground behind the machine.
This system ensures that a sufficient quantity of fine material is available to cover the pipes laid, so that they are not damaged by other material discharged into the trench.
The use of a pair of hydraulic motors fitted directly to the mill shaft instead of the conventional belt and pulley systems reduces the size of the assembly and gives greater design freedom, as no constraints are imposed by the presence of the mechanical transmissions used in known machines.
An expert in the field could devise various modifications and variations, all of which should be deemed to fall within the ambit of this invention.
Claims (8)
1) Trench-filling machine of the type comprising:
- a motor vehicle - means designed to collect filling material in front of the machine and direct it to a sieve - means designed to discharge the sieved material into the trench characterised in that it includes means designed to crush the collected material before said material is directed towards said sieve.
- a motor vehicle - means designed to collect filling material in front of the machine and direct it to a sieve - means designed to discharge the sieved material into the trench characterised in that it includes means designed to crush the collected material before said material is directed towards said sieve.
2) Trench-filling machine as claimed in claim 1, characterised in that it also includes:
.cndot. a structure hinged to the chassis of the motor vehicle in such a way as to rotate around a substantially horizontal axis perpendicular to the direction of advance of the machine .cndot. a conveyor belt fitted to said structure to collect the material in front of the machine and direct it to the back of the machine .cndot. a vibrating sieve fitted at the back of the machine .cndot. a conveyor belt, onto which said sieve discharges the fine material, which said conveyor belt moves in a direction substantially perpendicular to the advance of the machine and projects from the chassis of said machine so that it can discharge the tine material directly into the trench.
.cndot. a structure hinged to the chassis of the motor vehicle in such a way as to rotate around a substantially horizontal axis perpendicular to the direction of advance of the machine .cndot. a conveyor belt fitted to said structure to collect the material in front of the machine and direct it to the back of the machine .cndot. a vibrating sieve fitted at the back of the machine .cndot. a conveyor belt, onto which said sieve discharges the fine material, which said conveyor belt moves in a direction substantially perpendicular to the advance of the machine and projects from the chassis of said machine so that it can discharge the tine material directly into the trench.
3) Trench-filling machine as claimed in claim 1, characterised in that the crusher device is fitted to the front end of the machine.
4) Trench-filling machine as claimed in each of the preceding claims, characterised in that the height of said crusher device can be regulated independently of said material collection devices.
5) Trench-filling machine as claimed in claims 1 to 3, characterised in that said crusher device is integral with the structure to which said collection means are fitted.
6) Trench-filling machine as claimed in each of the preceding claims, characterised in that said crusher is constituted by a mill driven by hydraulic motors.
7) Trench-filling machine as claimed in claim 6, characterised in that said crusher device comprises a shaft that rotates around a horizontal axis and a plurality of hammers hinged to supports fitted to said shaft.
8) Trench-filling machine characterised in that it includes:
.cndot. a motor vehicle mounted on tracks;
.cndot. a chassis mounted on said motor vehicle;
.cndot. a structure hinged to said chassis in such a way that it can perform limited angular movements on a substantially vertical plane parallel to the direction of advance of the machine .cndot. a conveyor device fitted to said structure .cndot. means designed to crush the material on the ground, which said means are located in front of said collection devices .cndot. a vibrating sieve fitted at the back of the machine at the discharge area of said collection devices .cndot. a conveyor belt at the outlet of said vibrating sieve, which said conveyor belt moves in a direction perpendicular to the advance of the machine and projects from it.
.cndot. a motor vehicle mounted on tracks;
.cndot. a chassis mounted on said motor vehicle;
.cndot. a structure hinged to said chassis in such a way that it can perform limited angular movements on a substantially vertical plane parallel to the direction of advance of the machine .cndot. a conveyor device fitted to said structure .cndot. means designed to crush the material on the ground, which said means are located in front of said collection devices .cndot. a vibrating sieve fitted at the back of the machine at the discharge area of said collection devices .cndot. a conveyor belt at the outlet of said vibrating sieve, which said conveyor belt moves in a direction perpendicular to the advance of the machine and projects from it.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ITPC2002A000033 | 2002-12-13 | ||
| ITPC20020033 ITPC20020033A1 (en) | 2002-12-13 | 2002-12-13 | MACHINE FOR FILLING TRENCHES, EQUIPPED WITH CRUSHER DEVICE |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2446078A1 true CA2446078A1 (en) | 2004-06-13 |
Family
ID=32587891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2446078 Abandoned CA2446078A1 (en) | 2002-12-13 | 2003-10-22 | Trench-filling machine fitted with a crushing device |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA2446078A1 (en) |
| IT (1) | ITPC20020033A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376638A (en) * | 2020-11-07 | 2021-02-19 | 洪良东 | Building engineering shoveling device based on vibration excavation |
-
2002
- 2002-12-13 IT ITPC20020033 patent/ITPC20020033A1/en unknown
-
2003
- 2003-10-22 CA CA 2446078 patent/CA2446078A1/en not_active Abandoned
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112376638A (en) * | 2020-11-07 | 2021-02-19 | 洪良东 | Building engineering shoveling device based on vibration excavation |
Also Published As
| Publication number | Publication date |
|---|---|
| ITPC20020033A1 (en) | 2004-06-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Dead |