CA2820347A1 - Latch eye for excavators' shovels - Google Patents
Latch eye for excavators' shovels Download PDFInfo
- Publication number
- CA2820347A1 CA2820347A1 CA2820347A CA2820347A CA2820347A1 CA 2820347 A1 CA2820347 A1 CA 2820347A1 CA 2820347 A CA2820347 A CA 2820347A CA 2820347 A CA2820347 A CA 2820347A CA 2820347 A1 CA2820347 A1 CA 2820347A1
- Authority
- CA
- Canada
- Prior art keywords
- latch
- core
- latch eye
- eye
- excavators
- 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
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 230000007423 decrease Effects 0.000 claims abstract 2
- 238000003466 welding Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/40—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets
- E02F3/407—Dippers; Buckets ; Grab devices, e.g. manufacturing processes for buckets, form, geometry or material of buckets with ejecting or other unloading device
- E02F3/4075—Dump doors; Control thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
- Body Structure For Vehicles (AREA)
Abstract
A latch eye for an excavator that decreases its weight and provides longer durability. The latch eye comprises two main parts, including a core and a shield coat comprised of a replacement kit made up of several parts. The parts of the replacement kit are fixed to the core. The core and the shield coat are made of quenched and tempered steel.
Description
LATCH EYE FOR EXCAVATORS' SHOVELS
SPECIFICATION
FIELD OF THE INVENTION
The present utility model relates to the earth movement equipment field and, it specifically refers to a latch eye used in excavators' shovels.
PRIOR ART
The function of the latch of excavators' shovels is to lock the bucket prior to loading in order to prevent the load from falling outside once the material has entered it and to keep it secured while the excavator moves to the dumping location.
Upon unloading, the shovel opens to allow the material to exit at the dumping area, activating the latch. It may then be deduce from the above that these elements opens and closes a number of times during the period of loading and unloading the bucket of an excavator, reason by which its wear will demand repair after a certain number of working hours. This involves hours of equipment maintenance and stoppage.
Currently, latches are cast and made of a single piece, reason by which wear spots must be weld disassembled and filled and reassembled once repaired.
It is a requirement that the latch may be secured inside a hole wherein it will lock. To this effect, a so-called latch eye is used, piece that, unlike the latch that is mounted on a hinged door that is located on one side of the bucket, this latch eye is located in an area that is fixed to the bucket's structure, preferably to the floor.
SUMMARY OF THE INVENTION
The proposed rolled latch eye has been developed with a combination of steels meeting the world's highest quality standards in order to guarantee its operation in extreme conditions, achieving:
- A customized design to each work, by compiling on-site information and 1.0 validated with engineering software (finite element analysis and other).
- A replaceable shield kit, not requiring change of the eye upon wear.
- Optimized design allowing to increase performance, using high-resistance steels.
- The shield is designed to minimize weight and to protect the component's structure.
- Manufactured under AWS D14.3 Standard and strict quality control.
= The benefits of this latch eye are longer useful life and easy replacement.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows the location of the latch eye on the shovel of the excavator.
20 Figure 2 shows a latch eye, its core and pieces of the replacement kit.
SPECIFICATION
FIELD OF THE INVENTION
The present utility model relates to the earth movement equipment field and, it specifically refers to a latch eye used in excavators' shovels.
PRIOR ART
The function of the latch of excavators' shovels is to lock the bucket prior to loading in order to prevent the load from falling outside once the material has entered it and to keep it secured while the excavator moves to the dumping location.
Upon unloading, the shovel opens to allow the material to exit at the dumping area, activating the latch. It may then be deduce from the above that these elements opens and closes a number of times during the period of loading and unloading the bucket of an excavator, reason by which its wear will demand repair after a certain number of working hours. This involves hours of equipment maintenance and stoppage.
Currently, latches are cast and made of a single piece, reason by which wear spots must be weld disassembled and filled and reassembled once repaired.
It is a requirement that the latch may be secured inside a hole wherein it will lock. To this effect, a so-called latch eye is used, piece that, unlike the latch that is mounted on a hinged door that is located on one side of the bucket, this latch eye is located in an area that is fixed to the bucket's structure, preferably to the floor.
SUMMARY OF THE INVENTION
The proposed rolled latch eye has been developed with a combination of steels meeting the world's highest quality standards in order to guarantee its operation in extreme conditions, achieving:
- A customized design to each work, by compiling on-site information and 1.0 validated with engineering software (finite element analysis and other).
- A replaceable shield kit, not requiring change of the eye upon wear.
- Optimized design allowing to increase performance, using high-resistance steels.
- The shield is designed to minimize weight and to protect the component's structure.
- Manufactured under AWS D14.3 Standard and strict quality control.
= The benefits of this latch eye are longer useful life and easy replacement.
BRIEF DESCRIPTION OF THE DRAWINGS
Figure 1 shows the location of the latch eye on the shovel of the excavator.
20 Figure 2 shows a latch eye, its core and pieces of the replacement kit.
2 Figure 3 shows the location of the latch, eye and its actuating mechanism on the shovel of the excavator.
Figure 4 shows the cast latch eye (prior art).
DETAILED DESCRIPTION OF THE INVENTION
The invention provides a rolled and tempered (latch eye (2) that is part of a latch assembly (1) and latch eye (2), wherein the latch (1) is located on the hinged door (3) of the excavator's shovel and which is operated by a mechanism (4) that raises or lowers the latch (1) causing said latch (1) to enter or exit the latch eye (2) 1.0 located on the floor (9) of the excavator's shovel. The proposed latch eye (1) has a shield coat made up of a replacement kit (8) which hardness fluctuates between and 540 HB an a core (7) that is made of high-toughness steel having a 260 to HB hardness, which guarantees a longer useful life and identical mechanical resistance. The steels used met high quality standards in each one of its manufacturing processes. The proposed latch eye (2) comprises several outer exchangeable parts that make up the replacement kit (8) and the core (7) where the parts of said replacement kit (7) are installed (7).
The shield kit is fixed by arc welding.
Figure 4 shows the cast latch eye (prior art).
DETAILED DESCRIPTION OF THE INVENTION
The invention provides a rolled and tempered (latch eye (2) that is part of a latch assembly (1) and latch eye (2), wherein the latch (1) is located on the hinged door (3) of the excavator's shovel and which is operated by a mechanism (4) that raises or lowers the latch (1) causing said latch (1) to enter or exit the latch eye (2) 1.0 located on the floor (9) of the excavator's shovel. The proposed latch eye (1) has a shield coat made up of a replacement kit (8) which hardness fluctuates between and 540 HB an a core (7) that is made of high-toughness steel having a 260 to HB hardness, which guarantees a longer useful life and identical mechanical resistance. The steels used met high quality standards in each one of its manufacturing processes. The proposed latch eye (2) comprises several outer exchangeable parts that make up the replacement kit (8) and the core (7) where the parts of said replacement kit (7) are installed (7).
The shield kit is fixed by arc welding.
3
Claims (4)
1. A Latch eye for excavators that decreases its weight and provides longer durability, comprising two main parts:
- A core;
- a shield coat comprised of a replacement kit made up of several parts;
- the parts of the replacement kit are fixed to the core;
- the steels comprising it are quenched and tempered.
- A core;
- a shield coat comprised of a replacement kit made up of several parts;
- the parts of the replacement kit are fixed to the core;
- the steels comprising it are quenched and tempered.
2. The latch eye for excavators according to claim 1, wherein the core is made of high-toughness, 400 to 540 HB hardness steel.
3. The latch eye for excavators according to claim 1, wherein the shield coat is made of steel having surface hardness between 400 and 540 HB.
4. The latch eye for excavators according to claim 1, wherein the parts of the replacement kit are fixed to the core by arc welding.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CL2013000938 | 2013-04-05 | ||
| CL0938-2013 | 2013-04-05 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2820347A1 true CA2820347A1 (en) | 2014-10-05 |
| CA2820347C CA2820347C (en) | 2017-04-18 |
Family
ID=51653471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2820347A Expired - Fee Related CA2820347C (en) | 2013-04-05 | 2013-06-18 | Latch eye for excavators' shovels |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20140298691A1 (en) |
| BR (1) | BR202013017117U2 (en) |
| CA (1) | CA2820347C (en) |
| PE (1) | PE20141226Z (en) |
| ZA (1) | ZA201304562B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022261779A1 (en) * | 2021-06-17 | 2022-12-22 | 9257-5810 Québec Inc. | Latch keeper assembly for earth-working bucket |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US986522A (en) * | 1910-07-06 | 1911-03-14 | Frederick William Thomson | Dipper-door. |
| US1566437A (en) * | 1924-06-23 | 1925-12-22 | James A Simpson | Dipper-door-locking means |
| US2544682A (en) * | 1945-12-03 | 1951-03-13 | Walter A Hilgeman | Latch |
| US4129952A (en) * | 1977-10-27 | 1978-12-19 | Caterpillar Tractor Co. | Wear strips for earthmoving buckets |
| US4939855A (en) * | 1989-08-14 | 1990-07-10 | Atlantic Richfield Company | Excavator dipper with lightweight replaceable section |
| US5815958A (en) * | 1996-12-30 | 1998-10-06 | The Frog, Switch & Manufacturing Co. | Excavator dipper latch assembly having removable tapered latch bar |
| US6186735B1 (en) * | 1998-10-14 | 2001-02-13 | Clark Equipment Company | Loader bucket construction for robot assembly |
| US20050126056A1 (en) * | 2000-11-20 | 2005-06-16 | Gene Kostecki | Bulk materials transport containers |
| US6780458B2 (en) * | 2001-08-01 | 2004-08-24 | Siemens Westinghouse Power Corporation | Wear and erosion resistant alloys applied by cold spray technique |
| DE10354543B3 (en) * | 2003-11-21 | 2005-08-04 | H.C. Starck Gmbh | Dual phase hard material, process for its preparation and its use |
| US8590180B2 (en) * | 2005-07-13 | 2013-11-26 | Harnischfeger Technologies, Inc. | Dipper door latch with locking mechanism |
| US8136272B2 (en) * | 2005-07-13 | 2012-03-20 | Harnischfeger Technologies, Inc. | Dipper door latch with locking mechanism |
| SE532593C2 (en) * | 2006-05-05 | 2010-03-02 | Atlas Copco Rock Drills Ab | Device in detail for a mining or construction vehicle, comprising a wear protection structure |
| US8602113B2 (en) * | 2008-08-20 | 2013-12-10 | Exxonmobil Research And Engineering Company | Coated oil and gas well production devices |
| US8839534B2 (en) * | 2010-07-28 | 2014-09-23 | Acs Industries, Inc. | Monolithic floor for hot slag bucket |
| US8631596B2 (en) * | 2011-01-20 | 2014-01-21 | Ben Tulibaski | Material-handling bucket with scraper blade |
-
2013
- 2013-06-04 PE PE2013001347U patent/PE20141226Z/en active IP Right Grant
- 2013-06-18 CA CA2820347A patent/CA2820347C/en not_active Expired - Fee Related
- 2013-06-20 ZA ZA2013/04562A patent/ZA201304562B/en unknown
- 2013-06-27 US US13/929,095 patent/US20140298691A1/en not_active Abandoned
- 2013-07-02 BR BRBR202013017117-0U patent/BR202013017117U2/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| CA2820347C (en) | 2017-04-18 |
| ZA201304562B (en) | 2014-06-25 |
| PE20141226Z (en) | 2014-10-02 |
| US20140298691A1 (en) | 2014-10-09 |
| BR202013017117U2 (en) | 2015-06-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKLA | Lapsed |
Effective date: 20190618 |