CA2692030A1 - Hoist for granular materials - Google Patents
Hoist for granular materials Download PDFInfo
- Publication number
- CA2692030A1 CA2692030A1 CA 2692030 CA2692030A CA2692030A1 CA 2692030 A1 CA2692030 A1 CA 2692030A1 CA 2692030 CA2692030 CA 2692030 CA 2692030 A CA2692030 A CA 2692030A CA 2692030 A1 CA2692030 A1 CA 2692030A1
- Authority
- CA
- Canada
- Prior art keywords
- hoist
- rails
- legs
- granular materials
- pair
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B17/00—Hoistway equipment
- B66B17/14—Applications of loading and unloading equipment
- B66B17/26—Applications of loading and unloading equipment for loading or unloading mining-hoist skips
Landscapes
- Control And Other Processes For Unpacking Of Materials (AREA)
Abstract
A hoist for granular materials, for receiving a load of such material at a loading point and for delivering such material to a delivery point, and having a frame, a pair of rails supported on the frame, a bucket movably supported on the rails, a drive system for moving the bucket, the rails defining at their upper ends a curved radiussed section oriented to cause the bucket to turn and pour the material therefrom.
Description
FIELD OF THE INVENTION
The invention relates to a granular material hoist for delivering and depositing granular materials such as sand and the like, and particularly for feeding garnet particles to a water jet cutter.
BACKGROUND OF THE INVENTION
In many operations it is desirable to convey and deposit granular materials, such as sand for example . Garnet particles are used in water jet cutting. These particles must be fed to a hopper to supply a steady stream of particles into the water jet.
Other materials of a similar nature which are handled in bulk, could include for example, sugar, salt, and various powdered materials and chemicals. Often such materials are supplied to the user in bags. In many cases it is the practice to simply open the bag, and dump the contents where it is needed. Bags can break and are awkward to handle.
In addition if the material must be lifted to an elevation, then the work is strenuous and the contents can be spilled.
In these and in other cases handling such granular materials must be done with care so as to avoid contaminating a machine, or other materials, for example.
Preferably hoisting and delivering such materials should be arranged so as to provide a regular timely supply of the material to the location where it is required.
BRIEF SUMMARY OF THE INVENTION
With a view to satisfying these various requirements the invention provides a hoist for granular materials, for receiving a load of such granular material at a loading point and for delivering such granular material to a delivery point, and having a frame, a pair of rails supported on said frame, said rails defining a loading point at a lower rail region and a delivery point at an upper rail region , a bucket for said granular material movably supported on said rails, a drive system for moving said bucket along said rails fpm said loading point to said delivery point, and back again and , said rails defining at their upper ends a curved radiussed rail section just prior to said delivery point , oriented to cause said bucket to turn over and pour said material therefrom.
The invention further provides a hoist for granular materials as described wherein said rails define a first linear section running from a lower end to an upper end, and wherein said curved section extends from said upper end , in an arc terminating in a downwardly angled section at said delivery point.
The invention further provides a hoist for granular materials as described wherein said rails define tracks for rollers, and a drive element running between said tracks and a motor for driving said drive element.
The invention further provides a hoist for granular materials as described including a curved sprocket bar mounted along the curved rail section , and a plurality of guide sprockets mounted at spaced intervals along the bar, for guiding the drive element around the curve of the rail section.
The invention further provides a hoist for granular materials as described wherein said frame includes a horizontal base, and at least a first pair of mid length legs and a second pair of full length legs extending upwardly therefrom, and a cantilever frame section extending outwardly from the upper ends of said full length legs.
The invention relates to a granular material hoist for delivering and depositing granular materials such as sand and the like, and particularly for feeding garnet particles to a water jet cutter.
BACKGROUND OF THE INVENTION
In many operations it is desirable to convey and deposit granular materials, such as sand for example . Garnet particles are used in water jet cutting. These particles must be fed to a hopper to supply a steady stream of particles into the water jet.
Other materials of a similar nature which are handled in bulk, could include for example, sugar, salt, and various powdered materials and chemicals. Often such materials are supplied to the user in bags. In many cases it is the practice to simply open the bag, and dump the contents where it is needed. Bags can break and are awkward to handle.
In addition if the material must be lifted to an elevation, then the work is strenuous and the contents can be spilled.
In these and in other cases handling such granular materials must be done with care so as to avoid contaminating a machine, or other materials, for example.
Preferably hoisting and delivering such materials should be arranged so as to provide a regular timely supply of the material to the location where it is required.
BRIEF SUMMARY OF THE INVENTION
With a view to satisfying these various requirements the invention provides a hoist for granular materials, for receiving a load of such granular material at a loading point and for delivering such granular material to a delivery point, and having a frame, a pair of rails supported on said frame, said rails defining a loading point at a lower rail region and a delivery point at an upper rail region , a bucket for said granular material movably supported on said rails, a drive system for moving said bucket along said rails fpm said loading point to said delivery point, and back again and , said rails defining at their upper ends a curved radiussed rail section just prior to said delivery point , oriented to cause said bucket to turn over and pour said material therefrom.
The invention further provides a hoist for granular materials as described wherein said rails define a first linear section running from a lower end to an upper end, and wherein said curved section extends from said upper end , in an arc terminating in a downwardly angled section at said delivery point.
The invention further provides a hoist for granular materials as described wherein said rails define tracks for rollers, and a drive element running between said tracks and a motor for driving said drive element.
The invention further provides a hoist for granular materials as described including a curved sprocket bar mounted along the curved rail section , and a plurality of guide sprockets mounted at spaced intervals along the bar, for guiding the drive element around the curve of the rail section.
The invention further provides a hoist for granular materials as described wherein said frame includes a horizontal base, and at least a first pair of mid length legs and a second pair of full length legs extending upwardly therefrom, and a cantilever frame section extending outwardly from the upper ends of said full length legs.
The invention further provides a hoist for granular materials as described wherein said bucket comprises two side walls, a bottom wall, and a back wall, and wherein said two side walls converge inwardly from said back wall to form a pouring spout for said material.
The invention further provides a hoist for granular materials as described wherein said back wall defines an upright back wall portion and an upper inclined back wall portion extending forwardly towards said spout.
The invention further provides such a hoist in which the drive includes a chain drive connected to the bucket, and in which there are a plurality of guide sprockets , and at least one sprocket support bar mounted on the frame, the bar being curved to complement the curved radiussed rail sections to guide the chain around such curve.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
IN THE DRAWINGS
Figure 1 is a general isometric view of a granular material hoist apparatus , shown associated with a further piece of equipment , to which the material is to be delivered;
Figure 2 is a side elevation of the hoist of Fig 1;
The invention further provides a hoist for granular materials as described wherein said back wall defines an upright back wall portion and an upper inclined back wall portion extending forwardly towards said spout.
The invention further provides such a hoist in which the drive includes a chain drive connected to the bucket, and in which there are a plurality of guide sprockets , and at least one sprocket support bar mounted on the frame, the bar being curved to complement the curved radiussed rail sections to guide the chain around such curve.
The various features of novelty which characterize the invention are pointed out with more particularity in the claims annexed to and forming a part of this disclosure.
For a better understanding of the invention, its operating advantages and specific objects attained by its use, reference should be made to the accompanying drawings and descriptive matter in which there are illustrated and described preferred embodiments of the invention.
IN THE DRAWINGS
Figure 1 is a general isometric view of a granular material hoist apparatus , shown associated with a further piece of equipment , to which the material is to be delivered;
Figure 2 is a side elevation of the hoist of Fig 1;
Figure 3 is a perspective of the bucket for carrying the material on the hoist;
Figure 4 is a schematic showing the movement of the bucket up the hoist, and delivering its granular contents, parts being shown in phantom.
DESCRIPTION OF A SPECIFIC EMBODIMENT
As shown in Fig 1, the hoist is indicated generally as (10) . It is shown associated with a further piece of equipment indicated a E. This equipment may be any one of a variety of items where granular materials are required to be delivered.
For example it could a as simple as a cement mixer, or a plastics injection moulding machine. In the case of this description E represents a high pressure water jet cutter.
This type of machine uses granular garnet material , which is entrained with the water jet, and provides an abrasive for the cutting action .
It will be understood that such a piece of equipment must be supplied with such material to a hopper, at regular intervals. Where the material is bagged, then a man must open a bag, lift it up and pour the contents into the hopper.
Clearly this type of repetitive action, can lead to spillage of material. Such material may even contaminate the piece of equipment.
The hoist (10) is shown in more detail in Figs 2, 3 and 4.
The hoist has two parallel rails (12) , supported on a frame described below..
The rails comprise linear rail sections which run from a lower loading point (14) in a linear path at an angle upwardly. The rails then form a curved radiussed section at (16) and extend from the curve downwardly to a delivery point (18) .
The rails are generally C section in shape for reasons described below.
Figure 4 is a schematic showing the movement of the bucket up the hoist, and delivering its granular contents, parts being shown in phantom.
DESCRIPTION OF A SPECIFIC EMBODIMENT
As shown in Fig 1, the hoist is indicated generally as (10) . It is shown associated with a further piece of equipment indicated a E. This equipment may be any one of a variety of items where granular materials are required to be delivered.
For example it could a as simple as a cement mixer, or a plastics injection moulding machine. In the case of this description E represents a high pressure water jet cutter.
This type of machine uses granular garnet material , which is entrained with the water jet, and provides an abrasive for the cutting action .
It will be understood that such a piece of equipment must be supplied with such material to a hopper, at regular intervals. Where the material is bagged, then a man must open a bag, lift it up and pour the contents into the hopper.
Clearly this type of repetitive action, can lead to spillage of material. Such material may even contaminate the piece of equipment.
The hoist (10) is shown in more detail in Figs 2, 3 and 4.
The hoist has two parallel rails (12) , supported on a frame described below..
The rails comprise linear rail sections which run from a lower loading point (14) in a linear path at an angle upwardly. The rails then form a curved radiussed section at (16) and extend from the curve downwardly to a delivery point (18) .
The rails are generally C section in shape for reasons described below.
Between the two rails there is a power driven device, in this case a drive chain (20) .
Chain (20) is powered by an electric motor (22) .
Chain (20) is supported around the radiussed rail section (16) by a series of idler sprockets (24) . Sprockets (24 are supported at spaced intervals along at least one curved sprocket support bar (26) In this way the chain drive can follow the curve of rail portion (16) .
The rails are designed to receive rollers therein.
A bucket (30) is mounted on a frame and rollers (32) which run in rails (12) .
The C section of the rails receives and retains the rollers therein. Bucket (30) has a back wall (34 ) and side walls (36 ) and a bottom wall (38) . The side walls (36 ) curve together to form a spout (40) . The bottom wall curves upwardly towards the spout.
The bucket is open at its top . The back wall (34) is upright and is somewhat higher than the spout (40) . The side walls (36 ) are angled down from the back wall to the spout.
There is an upper retention portion (42 ) of back wall (34 ) which is angled inwardly, or forwardly towards the spout (40).
Bucket (30) is made of a single sheet of sheet metal. By cutting the sheet along the lines L , and then bending the sheet so that the cut edges abut, it can be welded along those abutting edges. Thus the single sheet is formed into an integral bucket in the shape shown.
There is a loading stop limit switch (44 ) at the loading point. There is a similar delivery limit switch (46) at the delivery point.
The two limit switches operate on contact with the rollers on the bucket, and stop the electric motor (22) .
At the loading point the bucket will remain stationary while material is loaded.
The operator can then actuate the motor and the bucket will be drawn by the chain , up the rails, over the curved area, and is then inverted gradually, by about 90 degrees. .
The contents then pour progressively out of the spout, into whatever hopper or receptacle is waiting below.
The delivery switch then reverses the electric motor and the chain reverses and draws the empty bucket back over the curved area and down to the loading point once more.
The frame shown generally as (50, is ) provides for support for the rails (12 ) and motor and drive system and bucket At the curved rails section the frame is cantilevered, and an extension frame portion (52) extends out over whatever receptacle is waiting below.
The frame has a base (54) , a first pair of short legs (56 ) and a second pair of mid length legs (58) and a third pair of longer legs (60 ). Bracing struts (62 ) extend transversely. The rails (12) are attached to one end of said base, and are extended up at an angle therefrom being connected to the base adjacent said short legs (56 ), and to said mid length legs (58) at about a mid point along said rails, and are further supported at about the high point or apex of the curved rail section by said longer legs (60 ). The cantilever extension frame portion (52 ) extends forwardly from the upper ends of the longer legs.
The sprocket support bar (26) is supported between the two rails (12), on transverse bars (64) .
For safety and appearance the frame and mechanism can be enclosed in side panels (66).
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
Chain (20) is powered by an electric motor (22) .
Chain (20) is supported around the radiussed rail section (16) by a series of idler sprockets (24) . Sprockets (24 are supported at spaced intervals along at least one curved sprocket support bar (26) In this way the chain drive can follow the curve of rail portion (16) .
The rails are designed to receive rollers therein.
A bucket (30) is mounted on a frame and rollers (32) which run in rails (12) .
The C section of the rails receives and retains the rollers therein. Bucket (30) has a back wall (34 ) and side walls (36 ) and a bottom wall (38) . The side walls (36 ) curve together to form a spout (40) . The bottom wall curves upwardly towards the spout.
The bucket is open at its top . The back wall (34) is upright and is somewhat higher than the spout (40) . The side walls (36 ) are angled down from the back wall to the spout.
There is an upper retention portion (42 ) of back wall (34 ) which is angled inwardly, or forwardly towards the spout (40).
Bucket (30) is made of a single sheet of sheet metal. By cutting the sheet along the lines L , and then bending the sheet so that the cut edges abut, it can be welded along those abutting edges. Thus the single sheet is formed into an integral bucket in the shape shown.
There is a loading stop limit switch (44 ) at the loading point. There is a similar delivery limit switch (46) at the delivery point.
The two limit switches operate on contact with the rollers on the bucket, and stop the electric motor (22) .
At the loading point the bucket will remain stationary while material is loaded.
The operator can then actuate the motor and the bucket will be drawn by the chain , up the rails, over the curved area, and is then inverted gradually, by about 90 degrees. .
The contents then pour progressively out of the spout, into whatever hopper or receptacle is waiting below.
The delivery switch then reverses the electric motor and the chain reverses and draws the empty bucket back over the curved area and down to the loading point once more.
The frame shown generally as (50, is ) provides for support for the rails (12 ) and motor and drive system and bucket At the curved rails section the frame is cantilevered, and an extension frame portion (52) extends out over whatever receptacle is waiting below.
The frame has a base (54) , a first pair of short legs (56 ) and a second pair of mid length legs (58) and a third pair of longer legs (60 ). Bracing struts (62 ) extend transversely. The rails (12) are attached to one end of said base, and are extended up at an angle therefrom being connected to the base adjacent said short legs (56 ), and to said mid length legs (58) at about a mid point along said rails, and are further supported at about the high point or apex of the curved rail section by said longer legs (60 ). The cantilever extension frame portion (52 ) extends forwardly from the upper ends of the longer legs.
The sprocket support bar (26) is supported between the two rails (12), on transverse bars (64) .
For safety and appearance the frame and mechanism can be enclosed in side panels (66).
The foregoing is a description of a preferred embodiment of the invention which is given here by way of example only. The invention is not to be taken as limited to any of the specific features as described, but comprehends all such variations thereof as come within the scope of the appended claims.
Claims (9)
1. A hoist for granular material, for receiving a load of such material at a loading point and for delivering such material to a delivery point, and comprising;
a base frame;
legs attached to said base frame and extending upwardly;
a pair of rails supported at an angle on said legs, said rails defining a loading point at a lower region and a delivery point at an upper region ;
a bucket for said granular material movably supported on said rails;
a drive system for moving said bucket along said rails from said loading point to said delivery point, and back again; and , said rails defining at their upper ends a curved radiussed section just prior to said delivery point, oriented to cause said bucket to turn over and pour said material therefrom.
a base frame;
legs attached to said base frame and extending upwardly;
a pair of rails supported at an angle on said legs, said rails defining a loading point at a lower region and a delivery point at an upper region ;
a bucket for said granular material movably supported on said rails;
a drive system for moving said bucket along said rails from said loading point to said delivery point, and back again; and , said rails defining at their upper ends a curved radiussed section just prior to said delivery point, oriented to cause said bucket to turn over and pour said material therefrom.
2. A hoist for granular materials as claimed in claim 1 wherein said rails define a first linear section running from a lower end to an upper end, and wherein said curved section extends from said upper end , in an arc terminating in a downward lay angle section at said delivery point.
3. A hoist for granular materials as claimed in claim 2 wherein said rails define tracks for rollers, and a drive element running between said tracks and a motor for driving said drive element.
4. A hoist for granular materials as claimed in claim 3 wherein said frame includes a horizontal base, and at least a pair of mid length legs and a pair of full length legs extending upwardly therefrom, and a cantilever, frame section extending outwardly the upper ends of said longer legs.
5. A hoist for granular materials as claimed in claim 4 wherein said bucket comprises two side walls a bottom wall and a back wall, and wherein said two side walls converge inwardly from said back wall to form a pouring spout for said material.
6 A hoist for granular materials as claimed in claim 5 wherein said bucket is formed of a single sheet of sheet metal and wherein said back wall defines an upright portion and an upper inclined portion extending forwardly towards said spout.
7. A hoist for granular materials as claimed in claim 3 and including a curved sprocket bar mounted along the curved rail section , and a plurality of guide sprockets mounted at spaced intervals along the bar, for guiding the drive element around the curve of the rail section.
8. A hoist for granular materials as claimed in claim 7 including a frame comprising a rectangular generally horizontal base frame a pair of first legs extending downwardly from said base frame, a pair of second legs extending upwardly from said base frame a pair of third legs extending upwardly from said base portion, said third pair of legs being longer than said second pair, and said rails being attached to and supported by said pairs of legs.
9. A hoist for granular materials as claimed in claim 8 including bracing bars extending between said second and said third legs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2692030 CA2692030A1 (en) | 2010-02-03 | 2010-02-03 | Hoist for granular materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2692030 CA2692030A1 (en) | 2010-02-03 | 2010-02-03 | Hoist for granular materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2692030A1 true CA2692030A1 (en) | 2011-08-03 |
Family
ID=44352020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2692030 Abandoned CA2692030A1 (en) | 2010-02-03 | 2010-02-03 | Hoist for granular materials |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2692030A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196361A (en) * | 2022-06-28 | 2022-10-18 | 农芯(南京)智慧农业研究院有限公司 | Automatic cigar core feeding device |
-
2010
- 2010-02-03 CA CA 2692030 patent/CA2692030A1/en not_active Abandoned
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115196361A (en) * | 2022-06-28 | 2022-10-18 | 农芯(南京)智慧农业研究院有限公司 | Automatic cigar core feeding device |
| CN115196361B (en) * | 2022-06-28 | 2024-02-09 | 农芯(南京)智慧农业研究院有限公司 | Cigar core automatic feeding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |
Effective date: 20130204 |