WO1995001482A1 - Blade device - Google Patents
Blade device Download PDFInfo
- Publication number
- WO1995001482A1 WO1995001482A1 PCT/JP1994/001022 JP9401022W WO9501482A1 WO 1995001482 A1 WO1995001482 A1 WO 1995001482A1 JP 9401022 W JP9401022 W JP 9401022W WO 9501482 A1 WO9501482 A1 WO 9501482A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- blade
- angle
- frame
- actuator
- joint
- 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.)
- Ceased
Links
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
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/7609—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers
- E02F3/7613—Scraper blade mounted forwardly of the tractor on a pair of pivoting arms which are linked to the sides of the tractor, e.g. bulldozers with the scraper blade adjustable relative to the pivoting arms about a vertical axis, e.g. angle dozers
-
- 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
- E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
- E02F3/80—Component parts
Definitions
- the present invention relates to a blade device, and more particularly, to a blade device of an angle dozer and a tilt dozer of an earth moving machine such as a bulldozer. Background technology
- FIG. 11 shows an example of a conventional earth-moving machine, for example, a bulldozer blade device (for example, see Japanese Unexamined Utility Model Publication No. 59-144 063), and FIGS. 12 and 13 show another example. Examples (for example, see Japanese Utility Model Application Publication No. 56-68040).
- the rear end of the frame 41 is swingably supported by the vehicle body 40 via pins 42 (see FIG. 13), and the boss 47 fixed to the center of the front end of the frame 41 is a ball. It is swingably connected to the blade 44 via the joint 43.
- the brackets 45 fixed to the left and right sides of the frame 41 and the vehicle body 40 are connected via left and right lifting actuators 46 via pins, and the lifting actuators 46 are connected to each other.
- the blade 4 4 moves up and down.
- the bracket 45 and the blade 44 of the frame 41 are connected via two ball joints 48 by two right and left angle actuators 50.
- the blade 44 is angled around the ball joint 43 as shown by the two-dot chain line in FIG.
- the tilt bracket 51 is fixed to the center of the front end of the frame 41 by a ball joint between the center bracket 51 and the back of the blade 44.
- a substantially triangular tilt lever 56 is mounted between the center bracket 51 and the back of the blade 44 via a ball joint.
- Evening 52 is provided via ball joints. In either case, the blades 44 tilt due to the expansion and contraction of the tilting mechanism 52.
- the width of the vehicle body 40 is 80 and the width of the blades 44 is B1, BO ⁇ B1.
- the maximum value of the angle 1 shown in FIG. 12 is usually set to about 25 °.
- the angle is small, so that a large amount of spills S is likely to occur from the blades 44, and depending on the soil quality, the sediment flow ⁇ is worsened, and trenches are backfilled. Workability decreases.
- Another problem is that, as shown in Fig. 15, the width of the blades 44 at the maximum angle is larger than the width of the body 40 ⁇ 0, so the width of the platform is slightly wider than the body width ⁇ 0. 'Cannot be mounted on truck 2 In such a case, the blades must be removed and mounted on the truck before transportation, and re-mounted after transportation, which requires extra man-hours.
- the length from the center of the starting wheel 54 to the front end of the blade 44 is Lf
- the length from the center of the starting wheel 54 to the center of gravity G of the vehicle is Lw
- the vehicle is Assuming that the weight of the blade is W
- the length L f increases and the length L 1 of the work equipment also increases, the amount of blade fluctuation with respect to the operator's control amount increases, making it difficult to control the work equipment such as the blade 44.
- the present invention has been made in order to solve the above-mentioned drawbacks of the prior art, and it has been proposed to increase the angle of the angle and to increase the blade width at the time of the maximum angle of the vehicle without significantly separating the mounting position of the blade from the vehicle. By making the width smaller than the width, it is intended to ensure good workability and to provide a blade device having good transportability.
- the blade device is characterized in that the connection position of the joint for connecting the frame and the blade is at a position eccentric from the center in the width direction of the vehicle body, and the actuator that enables the blade to freely rotate in the front-rear direction is a frame. Attached to.
- one end of the actuator is attached to the blade at a position opposite to the joint with respect to the center in the width direction of the vehicle body, and the other end is attached to the frame.
- at least one connecting member is mounted between the blade and the frame and both ends of the actuator via a plurality of mounting members, and at least one of the mounting members is mounted.
- the blade may be movable further forward by removing the detachable mounting member and rotating the connecting member while detaching the mounting member.
- the mounting position of the joint which is the center of rotation of the blade in the front-rear direction
- the bracket on the joint mounting side is extended.
- the rotation distance of the end face in the blade width direction is small. Therefore, since the end face in the blade width direction does not interfere with the vehicle body, the joint mounting position, that is, the blade position, can be angled at a large angle without significantly moving the blade position away from the vehicle body, thereby improving workability such as earth removal work. Is improved.
- the blade width can be made smaller than the vehicle width, so that the posture during transportation can be kept within the vehicle width, thereby improving transportability.
- one end of the angle actuator is attached to the blade at a position opposite to the joint, so that the load on the blade during work such as soil excavation is reduced by the angle actuator with a small force. can do.
- the angle actuator is mounted so that the direction of expansion and contraction of the angle actuator is the same as the direction of the blade width, the blade must be extended and retracted relative to the amount of expansion and contraction of the angle actuator. The amount of rotation can be increased.
- the angle actuator described above is slightly larger in size than the conventional two-angle type, it is good with only one, and the cost is reduced, including the accompanying parts.
- a mounting member for example, a pin or the like
- the detachable mounting member is removed. By moving the one end of the blade further forward manually or the like, the angle of angle can be increased, and the width of the blade can be made smaller than the width of the vehicle body, thereby improving transportability.
- the above-described operation can be obtained by attaching the connecting member between the angle actuator and the blade and / or the frame as necessary.
- FIG. 1 is an explanatory plan view showing a blade device of a first embodiment according to the present invention
- FIG. 2 is a perspective view of the blade device of FIG. 1
- FIG. 3 is an explanatory diagram showing a side surface of FIG. 1
- FIG. 5 is an explanatory view of the operation of the first embodiment at the time of the angling
- FIG. 5 is a blade of the second embodiment according to the present invention.
- FIG. 6 is an explanatory view of the apparatus viewed from a plane
- FIG. 6 is an explanatory view of the operation of the second embodiment at the time of the angle
- FIG. 7 is a schematic plan view of the blade apparatus of the third embodiment according to the present invention
- FIG. 9 is a schematic side view of a blade device according to a fourth embodiment of the present invention
- FIG. 10 is a schematic side view of the blade device according to the fourth embodiment during an angle.
- FIG. 11 is a perspective view showing a blade device according to the prior art
- FIG. 12 is an explanatory diagram showing a plan view of another blade device according to the prior art
- Fig. 15 is a diagram illustrating the transport problems when mounting the blade according to the conventional technology.
- Fig. 16 is an explanatory view as seen from the plane showing the blade. The greatly explanatory view seen from the plane representing the defect if
- FIG. 7 is an explanatory view seen from the side in FIG. 1 6.
- FIGS. 1 to 3 showing the blade device of the first embodiment, a base end on the open side of a frame 1 is rotatably mounted in front of a body 5 of a bulldozer as an earthmoving machine to which the present invention is applied.
- the front portion of the frame 1 is asymmetric with respect to the center X—X in the width direction of the vehicle body 5, and the left side of the front portion of the frame 1 forms a protruding portion 1a that protrudes forward.
- the tip of the protruding portion 1 a and the boss 6 fixed to the blade 2 are connected via a rotatable joint 4, and the blade 2 is rotatable around the joint 4.
- the position of the joint 4 is eccentric to the left side of the distance e with respect to the center X—X in the width direction of the blade 2.
- the base end of the angle actuator 3 is rotatably mounted, and the tip of the angle actuator 3 is attached to the back 2 of the blade 2. It is rotatably attached to the right end of a.
- a pair of lift actuators 7 for raising and lowering the frame 1 are attached to the vehicle body 5 so that their base ends can rotate.
- the tip is rotatably mounted on an upper part of a bracket 8 erected on the upper surface of the frame 1.
- a tilt actuator 9 is provided between the frame 1 and the blade 2, and the tilt actuator 9 is rotatably mounted at the base end on the left side of the frame 1.
- the tip is connected to the blade 2 via a link 24.
- This substantially triangular link 24 is attached via a joint to a center bracket 21 where the first point stands on the protruding portion 1a, and the second point connects the joint 23 above the joint 4 to the center bracket 21.
- the third point is attached to the tip of the tilt actuator 9 via the joint 22 and the joint at each of these points is rotatable.
- the blade 2 is tilted via the link 24 by expanding and contracting the tilting actuator 9. 5a in Fig. 1 is a track.
- the blade 2 rotates in the front-rear direction about the joint 4 by expanding and contracting the angle actuator 3.
- the rotation angle a between the blade position Z 1 of the angle actuator 3 at the maximum stroke and the blade position Z 2 at the minimum stroke is a larger angle than before, and the operator has to take into account the characteristics of the soil and the like.
- the most suitable angle can be selected. For example, when the blade 2 is controlled to the position Z1 or a position close to this position and the groove is backfilled, the angling angle is large, and good workability can be obtained due to good sediment flow. Soil spills (see Figure 14) are greatly improved.
- blade 2 at position Z 1 has blade width B 3 smaller than vehicle width B 0 and does not protrude outside crawler belt 5a, so it is installed with blade 2 installed even on trucks with a narrow bed width. Is possible. Therefore, the man-hours required for attaching and detaching the blade 2 become unnecessary, and good transportability can be obtained.
- FIGS. This embodiment is an example in which the position of the angle actuator is different from that of the first embodiment.
- the illustration and description of the lift actuator and the tilt actuator of the blade 2 are omitted, although not shown in FIG. A common practice is used.
- the joint 4 between the protruding portion 1a of the frame 1 and the blade 2 is mounted at a position eccentric to the left by a distance e from the center line XX, as in the first embodiment.
- an angle actuator 3 for connecting the frame 1 and the blade 2 is provided via a joint.
- the angle actuator 3 is substantially perpendicular to the blade 2 having an angle of almost 0 °.
- the maximum stroke of the angle actuary Yue 3 is set to be larger than the conventional one.
- the blade width B 1 at the angle of 0 ° is the same as that of the first embodiment, and is larger than the vehicle width B 0.
- FIG. 6 illustrating the operation of this configuration
- the blade 2 can obtain a large rotation angle a around the joint 4.
- the blade width B 4 at the position Z 3 of the blade 2 is smaller than the vehicle width B 0. Therefore, effects similar to those of the first embodiment, such as improvement in both work performance and transportability, can be obtained.
- the distance L f1 from the center of the starting wheel to the tip of the blade 2 is slightly longer than the general conventional example shown in Fig. 15, and the distance L f of the conventional countermeasure vehicle (see Fig. 17) ) Significantly shorter than. Since the distance L f 1 is short, the same holds true for the first embodiment, but a decrease in the blade tip force F (see FIG. 17) is prevented.
- the present embodiment is an example in which the connecting means for connecting the angle actuator and the blade is different from the second embodiment.
- the joint 4 for connecting the frame 1 and the blade 2 is the same as that of the first embodiment.
- the vehicle body 5 is eccentric to the left by a distance e from the center line X—X in the width direction.
- the angle actuator 3 for pivotally connecting the base end of the frame 1 to the frame 1 and the brackets 12 and 14 fixed to the back of the blade 2 are connected to the lever 1 as a connecting member. Linked through 0.
- the lever 10 is mounted via a pin which is an example of a mounting member. That is, the lever 10 has one end rotatably mounted on the bracket 12 via the pin 13 and the other end removably mounted on the bracket 14 via the pin 15.
- the center is rotatably mounted on the tip of the angle actuator 3 via the pin 11.
- FIG. 8 illustrating the operation
- the blade 2 rotates around the joint 4 and the rotation angle 0 becomes the rotatable range.
- This rotation angle 0 can be set larger than the conventional blade rotation angle, and the working range is wider than before.
- the pin 11 13 moves to pins 11A and 13A, respectively.
- the blade width B5 at this position Z5 is smaller than the vehicle width B0, and good transportability can be obtained as in the above-described embodiment.
- the maximum stroke of the angle actuator 3 may be shorter than that of the second embodiment.
- FIG. 9 The present embodiment is different from the second embodiment in that the means for connecting the angle actuator and the frame is different.
- the bracket 8 fixed to the frame 1 and the vehicle body 5 are connected by a lift actuator 7.
- the angle actuator 3 has a tip end rotatably mounted on the blade 2 and a base end connected to the bracket 8 via a lever 30 as a connection member.
- the lever 30 is mounted via a pin which is an example of a mounting member. That is, the lever 30 has one end rotatably mounted on the bracket 8 via the pin 32 and the other end mounted on the bracket 8 via the pin 33.
- the bracket 8 is detachably mounted on the racket 8, and has a substantially central portion rotatably mounted on the base end of the angle actuator 3 via a ball joint 31.
- the position of the joint 4 between the projecting portion 1a of the frame 1 and the blade and the position of the connection between the angling unit 3 and the blade 2 in the vehicle width direction are the same as in the above embodiment. It is a position eccentric from the center.
- the blade 2 rotates in the front-rear direction similarly to the above-described embodiment, and the rotation angle is larger than before.
- the lever 30 can rotate about the pin 32.
- the blade width in this state is smaller than the vehicle body width B 0, as in the state (B 5) shown in FIG. 8, and the transportability is improved as compared with the conventional case.
- the maximum stroke of the angle factor 3 may be shorter than that of the second embodiment. Therefore, the workability and transportability can be improved without significantly increasing the stroke of the angle actuator.
- the mounting position of the joint which is the center of rotation of the blade in the front-rear direction, may be any position that is eccentric from the center of the vehicle body in the width direction. May be set. Further, even if two angle angle actuators are attached, the object of the present invention can be achieved and it is useful.
- the mounting position of the angle actuator for mounting one or more cables the connection position between the base and tip of the angle actuator and the frame and blade may be set as necessary. For example, a position that is eccentric to the same side as the joint of the blade rotation center or a center position in the width direction may be used.
- the connecting member may be attached between the angle actuating member and the blade, between the angle actuating member and the frame, or both. In the case of this both mounting, manual Etc., the zero momentum further increases.
- a hydraulic cylinder, a motor such as a hydraulic motor, or the like may be used as the actuator for the angle actuator or the like.
- the angle of the blade can be increased, and the width of the blade at the time of the maximum angle is smaller than the width of the vehicle body. It is.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Operation Control Of Excavators (AREA)
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US08/564,268 US5634523A (en) | 1993-06-29 | 1994-06-24 | Blade device |
| EP94918571A EP0705943A4 (en) | 1993-06-29 | 1994-06-24 | SHIELD DEVICE |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5/184420 | 1993-06-29 | ||
| JP18442093 | 1993-06-29 | ||
| JP5/307253 | 1993-11-12 | ||
| JP30725393 | 1993-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1995001482A1 true WO1995001482A1 (en) | 1995-01-12 |
Family
ID=26502492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1994/001022 Ceased WO1995001482A1 (en) | 1993-06-29 | 1994-06-24 | Blade device |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US5634523A (ja) |
| EP (1) | EP0705943A4 (ja) |
| JP (1) | JP2920071B2 (ja) |
| WO (1) | WO1995001482A1 (ja) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6007132A (en) * | 1998-01-13 | 1999-12-28 | Caterpillar Inc. | Liner for a work machine body and method for manufacturing the same |
| RU2185591C2 (ru) * | 2000-04-27 | 2002-07-20 | Общевойсковая Академия Вооруженных Сил Российской Федерации | Навесное оборудование танка |
| DE10116578A1 (de) | 2001-03-29 | 2002-10-10 | Macmoter Spa | Baufahrzeug mit einem Arbeitsgerät |
| US7013983B2 (en) * | 2003-06-18 | 2006-03-21 | Komatsu Ltd. | Blade mounting structure of bulldozer |
| US7083002B2 (en) * | 2003-06-18 | 2006-08-01 | Komatsu Ltd. | Blade mounting structure of bulldozer |
| US6955229B1 (en) | 2003-07-18 | 2005-10-18 | Hoffart Ronald J | Implement pitch-yaw system |
| US6827155B1 (en) * | 2003-07-18 | 2004-12-07 | Ronald J. Hoffart | Implement mounting system |
| US6907941B1 (en) | 2003-07-18 | 2005-06-21 | Ronald J. Hoffart | Sliding quick attach system |
| US8919455B2 (en) * | 2008-03-07 | 2014-12-30 | Deere & Company | Dozer blade pitch control system |
| US20170089035A1 (en) * | 2015-09-30 | 2017-03-30 | Caterpillar Inc. | Machine having removable tool system |
| US20170089036A1 (en) * | 2015-09-30 | 2017-03-30 | Caterpillar Inc. | Machine having rear-mounted tool coupler |
| WO2018126324A1 (en) | 2017-01-05 | 2018-07-12 | Jimmy Vigneault | Scraping device for clearing a roadway surface |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118103A (ja) * | 1974-06-28 | 1976-02-13 | Caterpillar Tractor Co | |
| JPS60165549U (ja) * | 1984-04-11 | 1985-11-02 | 株式会社小松製作所 | 湿地用ブルド−ザの作業機装置 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3233350A (en) * | 1963-10-24 | 1966-02-08 | Charles Machine Works | Quick detachable backfill blade for trencher |
| US3539022A (en) * | 1968-01-02 | 1970-11-10 | Allis Chalmers Mfg Co | Earthmoving attachment mounting |
| US4083414A (en) * | 1975-12-30 | 1978-04-11 | Kabushiki Kaisha Komatsu Seisakusho | Combination angling-tilting bulldozer |
| US4081036A (en) * | 1976-07-20 | 1978-03-28 | Kabushiki Kaisha Komatsu Seisakusho | Mounting arrangement for supporting bulldozer blade |
| CA1115514A (en) * | 1978-10-06 | 1982-01-05 | Masao Yokoyama | Bulldozer blade mounting apparatus |
| US4424871A (en) * | 1982-05-17 | 1984-01-10 | Deere & Company | Tilting and angling mechanism for dozer blade |
| DE3310970A1 (de) * | 1983-03-25 | 1984-09-27 | Aalener Baumaschinen-Gmbh & Co Kg, 7080 Aalen | Planierfahrzeug mit schwenkschild |
| JPS60165549A (ja) * | 1984-02-07 | 1985-08-28 | Seitetsu Kagaku Co Ltd | 抗工抗体吸収剤 |
| US4848483A (en) * | 1987-04-13 | 1989-07-18 | Rockland, Inc. | Tool attachment means for tractors |
-
1994
- 1994-06-24 WO PCT/JP1994/001022 patent/WO1995001482A1/ja not_active Ceased
- 1994-06-24 US US08/564,268 patent/US5634523A/en not_active Expired - Lifetime
- 1994-06-24 JP JP6166123A patent/JP2920071B2/ja not_active Expired - Fee Related
- 1994-06-24 EP EP94918571A patent/EP0705943A4/en not_active Withdrawn
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5118103A (ja) * | 1974-06-28 | 1976-02-13 | Caterpillar Tractor Co | |
| JPS60165549U (ja) * | 1984-04-11 | 1985-11-02 | 株式会社小松製作所 | 湿地用ブルド−ザの作業機装置 |
Non-Patent Citations (1)
| Title |
|---|
| See also references of EP0705943A4 * |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0705943A4 (en) | 1997-07-30 |
| EP0705943A1 (en) | 1996-04-10 |
| US5634523A (en) | 1997-06-03 |
| JPH07180175A (ja) | 1995-07-18 |
| JP2920071B2 (ja) | 1999-07-19 |
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