FI87381B - Additional equipment for road grading - Google Patents

Additional equipment for road grading Download PDF

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Publication number
FI87381B
FI87381B FI884163A FI884163A FI87381B FI 87381 B FI87381 B FI 87381B FI 884163 A FI884163 A FI 884163A FI 884163 A FI884163 A FI 884163A FI 87381 B FI87381 B FI 87381B
Authority
FI
Finland
Prior art keywords
auxiliary
movement
transmitting
accessory
vehicle
Prior art date
Application number
FI884163A
Other languages
Finnish (fi)
Swedish (sv)
Other versions
FI87381C (en
FI884163A0 (en
FI884163A (en
Inventor
Sten Ove Hammarstrand
Original Assignee
Sten Ove Hammarstrand
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to SE8601102 priority Critical
Priority to SE8601102A priority patent/SE461158B/en
Priority to PCT/SE1987/000117 priority patent/WO1987005350A1/en
Priority to SE8700117 priority
Application filed by Sten Ove Hammarstrand filed Critical Sten Ove Hammarstrand
Publication of FI884163A publication Critical patent/FI884163A/en
Publication of FI884163A0 publication Critical patent/FI884163A0/en
Application granted granted Critical
Publication of FI87381B publication Critical patent/FI87381B/en
Publication of FI87381C publication Critical patent/FI87381C/en

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/96Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
    • E02F3/963Arrangements on backhoes for alternate use of different tools
    • E02F3/964Arrangements on backhoes for alternate use of different tools of several tools mounted on one machine
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28Dredgers; 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
    • E02F3/36Component parts
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/627Devices to connect beams or arms to tractors or similar self-propelled machines, e.g. drives therefor
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02FDREDGING; SOIL-SHIFTING
    • E02F3/00Dredgers; Soil-shifting machines
    • E02F3/04Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/7663Graders with the scraper blade mounted under a frame supported by wheels, or the like
    • E02F3/7668Graders with the scraper blade mounted under a frame supported by wheels, or the like with the scraper blade being pivotable about a vertical axis

Description

1 8 7 s o 1
Road planer accessory
The invention relates to an accessory for planing a road, which accessory is preferably suitable for connection to a tractor excavator or the like.
Graders have long been known and are in general use. These machines are designed to work exclusively as graders, i.e. they are only intended for removing snow and ice from icy roads in winter and for planing and leveling 10 gravel roads. To some extent, they can also be used to clean road edges. However, known graders have numerous disadvantages. They are very large, difficult to handle in traffic and clumsy as well as extremely expensive to manufacture. In addition, their utilization rate is very low, on the order of 20%, which makes their operating costs considerable. The equipment that exists today is outdated And worn out. And replacing them with new ones is hardly conceivable against the background of the high costs involved.
The use of an accessory according to the invention for road planing makes it possible to avoid the above-mentioned disadvantages, while at the same time providing a grader which is relatively inexpensive to manufacture and, as an accessory 25, easy to adapt to, for example, existing tractor excavators.
The road planing accessory according to the invention is suitable for a vehicle equipped with outriggers, preferably a tractor excavator or the like, having a vehicle-mounted road planing device comprising a frame and a tool supported thereon, the accessory being characterized in that the frame comprises a rear and front a cross-beam, that a part is arranged on the front cross-beam, by means of which the accessory is rotatably and detachably connected to a towing device associated with the vehicle, that a rear 8-beam is fitted with 2 87581 members, by means of which the accessory is , and that the leveling devices are articulated between the frame and the vehicle outriggers 5 close to the front cross member.
The invention will now be described in detail with reference to the accompanying drawings, in which Figure 1 is a side view of a device connected to a conventional backhoe, Figure 2 is a top view of the device connected to a conventional backhoe, and for clarity the latter is shown without an associated excavator. Fig. 4 is a projection from above of the rear end of the body, and Fig. 5 is an enlarged side projection of the body, and is intended to illustrate the steering prevention device.
The following describes, in connection with the accompanying drawings, an accessory for planing a road fitted to a conventional backhoe loader. The terms front, and forward, rear, backward are used herein as a reference for the normal forward direction of the vehicle and not necessarily the working direction of the device. It should also be noted that the device can also be adapted to other types of vehicles, and the excavator described in this embodiment is to be considered as an example only.
The described tractor excavator 1, for example a vehicle with a central pivot joint, may comprise a front loader, for example a bucket, and a rearward excavator 2. On both sides of the vehicle at its rear there are outriggers 3 and 4 or equivalent for these legs. 35 when retracted while transporting the vehicle between work sites and lowered, resting on the ground during excavation 3,87581 or the like. The outriggers described in the drawings are to be considered as examples only, and other types of legs may equally well be used. The vehicle is also usually provided with a towbar 5 placed in the middle 5 and parallel to the length of the vehicle.
A bucket or the like is detachably connected to the rear end of the excavator 2 by means of a quick connector 6.
An additional device for planing a road according to the invention comprises a frame formed by two outer beams 7 and 8 rigidly fastened to each other by crossbeams at the rear 9 and the front 10. A wheel-supporting beam 29 is rotatably connected to the rear cross-member 9 while the latter carries two steerable wheels 11 and 12 which are suspended so as to rotate about their vertical axis 15 and are connected to each other by means of a tie rod 13.
The frame is further provided with a triangular bracket 14, the long side of which is hinged to the front cross member 10 and to the tip of which a traction ring 5 to be connected to the vehicle is attached by means of an associated rotating bolt 15. The outer beam 7 is connected to the support leg 4 by means of an extendable support arm 17, and the outer beam 8 is connected to the leg 3 by means of a similar extendable support arm 16.
The front beam 10 is provided with two additional support brackets 18 and 19, by means of which the substantially parallel epipedial frame structure 20 is pivotally attached to the cross beam 10. The frame 20 supports a pivot plate 21 to which a tool, preferably a grader blade 22, is fixed. . natural purification. The angle of the grader blade 22 can be set in a conventional manner 30 and can be moved horizontally to different positions relative to the longitudinal axis of the vehicle by means of hydraulic cylinders 23, which will not be described in more detail. The cylinders 23 engage the frame and the turntable by means of a triangular plate which can be disengaged from the turntable by means of a detachable bolt, whereby the turntable 4 8 7 o o 1 21 can be turned half a turn, then reversing the working direction of the tool.
The frame 20 is pivotally connected at its rear edge to a hinge 43, which forms part of the hinge mechanism, the other end of the hinge 5 being in turn connected to the end of the angle lever 24, forming a second part of the hinge mechanism being formed into a substantially triangular plate. The free end of the second leg of the angle lever is pivotally connected to a piston-cylinder device 25, the end of which facing away from the hinge-10 mechanism engages the rear cross member 29 at 26. The additional cross member 27 supports a rib 28 to which the joint of the angle lever 24 is pivotally attached. Using the hydraulic cylinder 25 and the articulation mechanism, the position of the blade 22 relative to the ground can be changed while keeping the blade 15 parallel to the ground by means of a frame 20 which pivots on the brackets 18 and 19.
Fine adjustment of the grader blade and possible tilting with respect to the ground level is done by adjusting the vehicle support legs 3 and 4. Thus, lowering the support leg 3 lowers the rear of the outer beam 8 by means of the support arm 16 while the planing unit rotates with respect to the towbar 5 and wheel support beam 29. This in turn causes the other end of the blade 22 to lower. It should be noted that the blade 22 can thus be placed in different positions with respect to the ground level 25 by means of the support legs 3 and 4 and the support arms 16 and 17.
The device is provided with a device at its rear which can prevent the steering operation of the wheels 11 and 12, and the implementation and operation of this device are described in the following.
The beam 29 is provided with an elongate, substantially cylindrical member 30 which is in the middle of the device parallel to its length. The upwardly facing surface of the member has a longitudinal opening 31, the width of which at the rear part B is B, this width being greater than the width of the part transmitting the movement, which part is, for example, a ball 32 mounted on the quick connector 6. the front has an opening with a width b smaller than the diameter of said part. At the rear of the member 30 and on the opposite side in diameter from the opening 31 is a longitudinal opening 33. A portion 34, which is a steel plate, is pivotally attached to the member 30 so that a generally triangular portion of the plate can protrude upwardly from the opening 33 into the member 30. The plate 34 has two support surfaces, the lower of which is in contact with a vertical, threaded rod or the like 35. The sleeve 36, suitably attached to the beam 29, acts as a guide for the rod 35, the upper surface of the sleeve also acting as a support surface for the compression spring 37, one end of which abuts the nut 38 threaded into the rod 35 and pushes the latter against the lower support surface of the plate 34. . The rod 35 can move freely in the sleeve 36, and its lower end is pivotally connected to one end of the arm 39 by the other end of the arm acting on brake pads or the like housed in a housing 40 attached to the beam 29. A flat steel rod 41 is reciprocated in the housing 40. a bidirectional arrow P as shown in the second end 41 of the flat steel bar being attached to the shaft 42 and the second end of the rod being secured for a horizontal pivotal movement of the wheel suspension 11 and 25 fork. Reciprocating movement is possible as long as the brake pads are not applied, which is the case as long as the ball 32 is in the rear position of the member 30 and against the upper support surface of the plate 34, thus ensuring that the rod 35 is in the down position, compressing the spring 37. In this case The steering movements of the tractor, for example in a vehicle with a swivel joint in the middle, are transmitted via the excavator 2 and the ball 32 to the planer wheels via the cylinder 30 and the wheel support bar 29 when the wheels 11 and 12 are in the desired steering position.
35 During transport to the work site, the ball can be moved out of place by the member 30, whereby the brake pads in the housing 40 6 8 7 o o 1 lock the parts 41 and 42, thus preventing the steering of the wheels and locking the wheels. The brake pads function so that when the pressure of the ball 32 against the plate 34 ceases, the spring 37 pushes the plate together with the rod 35 upwards, causing the arm 39 to engage the brake pads in the braking position. The device can then be considered as a trailer that is moved from one place to another. Alternatively, the ball may be moved to a forward position in the member 30 along the opening 31. In this case, the ball similarly moves away from the upper support surface of the plate 34, thus locking the wheels 11 and 12. In said forward position, the ball whereby the device can be lifted from the ground at the rear by means of an excavating device 2. The grader device can thus be considered to be an operating device belonging to the machine.
It is clear that the additional device for planing the road according to the invention can be very easily applied to a tractor excavator or a similar machine. No further preparation on the machine is required except for the connection of the hydraulic hoses between the vehicle and the cylinders 23 and 25 as well as additional fastening devices, for example quick coupler type, supports on legs 3 and 4 for support arms 16 and 17. All steering movements and grader blade settings can then be made from the cab using 25 existing controls.
Within the scope of the invention, it is of course possible to replace the extendable support arms 16 and 17 by hydraulic cylinders or similar extendable devices, such devices being connected by lines with appropriate non-return valves and preferably connected to hydraulic lines for adjusting the position of the support legs.
In addition to the grader blade shown in the figures, other tools can also be fitted to the device, for example 35 different mower blades or scraper devices.
of

Claims (10)

  1. An accessory for planing a road to a vehicle provided with support legs (3, 4), preferably a tractor excavator or the like, with a device (2) connected to the vehicle, the accessory for planing the road comprising a frame (7, 8, 9, 10). and 29) and the tool (22) supported by it, characterized in that the body comprises a cross member at the rear (9) and front (10), that a part (14) is arranged in the front cross member (10), by means of which the accessory is rotatably connected and detachably to the traction device (5) associated with the vehicle, that a member (30) is arranged on the rear cross member (9), by means of which the accessory is rotatably and releasably connected to the device (2), the traction device (5) and the device (2) , and that the leveling devices (16, 17) are articulated between the frame and the vehicle outriggers close to the front cross member (10).
  2. Auxiliary device according to Claim 1, characterized in that the level control devices are in the form of extendable members (16, 17).
  3. Auxiliary device according to Claim 2, characterized in that the rear cross member (9) is articulated to a wheel-supporting beam (29) which is parallel to the cross member.
  4. Auxiliary device according to claim 3, characterized in that the device for controlling the frame comprises (a) a device (2) connected to the vehicle, (b) a coupling device (6) connected to the device, (c) a member associated with a wheel support beam (29) (29). 30), said member being releasably connected to the device (2) by means of a movement transmitting part (32) associated with the coupling device (6), the movements of the device (2) being transmitted to guide wheels mounted on a wheel support beam; ), by means of a movement transmitting part (32) and a member (30). ('n ".- 8 ° / O ö!
  5. Auxiliary device according to claim 4, characterized in that the member (30) associated with the wheel-supporting beam comprises a hollow beam or trough member (30) extending in the longitudinal direction of the auxiliary device, a movement-transmitting part (32), preferably a ball. , being able to settle in different positions in the member (30).
  6. Auxiliary device according to claim 5, characterized in that the member (30) has an upper opening comprising at least two opening parts having different widths, the second part being wider than the movement-transmitting part, the width of the second opening part being smaller than the width of the movement-transmitting part, and that the member also has a lower opening with a device (34) for preventing steering, this device being pivotable in a vertical plane with respect to the member (30).
  7. Auxiliary device according to Claim 6, characterized in that the device (34) has two bearing surfaces for preventing steering, one of which communicates with the members (41, 42) by means of braking means via a spring-actuated part (35) and an arm 20 (39) pivotally connected thereto. ), which prevent the steering wheels from turning.
    7 875ή1
  8. Auxiliary device according to claim 7, characterized in that the second bearing surface of the anti-steering device 25 (34) forms a bearing surface for the movement-transmitting part (32) when it is in the first of said different positions when the anti-steering device (34) is pressed down and acts on the second via its rear surface to the spring-acting part (35) 30 and thus to the brake members associated with the arm, whereby these release the anti-turn device so that it can move freely relative to the brake members.
  9. Auxiliary device according to claim 8, characterized in that the movement-transmitting part (32) in a position 35 different from said first position acts on the braking means so as to lock the anti-turn device.
  10. Accessory according to one of Claims 6 to 9, characterized in that the second opening part forms a support for the movement-transmitting part (32) so that it can move the rear part of the accessory to different positions in the vertical plane under the action of the device (2). 10 8 7 381
FI884163A 1986-03-10 1988-09-09 TILLAEGGSANORDNING Foer VAEGHYVLING FI87381C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
SE8601102 1986-03-10
SE8601102A SE461158B (en) 1986-03-10 1986-03-10 VAEGHYVELTILLSATS
PCT/SE1987/000117 WO1987005350A1 (en) 1986-03-10 1987-03-09 Auxiliary unit for road grading
SE8700117 1987-03-09

Publications (4)

Publication Number Publication Date
FI884163A0 FI884163A0 (en) 1988-09-09
FI884163A FI884163A (en) 1988-09-09
FI87381B true FI87381B (en) 1992-09-15
FI87381C FI87381C (en) 1992-12-28

Family

ID=20363765

Family Applications (1)

Application Number Title Priority Date Filing Date
FI884163A FI87381C (en) 1986-03-10 1988-09-09 TILLAEGGSANORDNING Foer VAEGHYVLING

Country Status (3)

Country Link
FI (1) FI87381C (en)
SE (1) SE461158B (en)
WO (1) WO1987005350A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU608434B2 (en) * 1988-04-28 1991-03-28 Kevin John Bryant Grader arrangement
GB8817302D0 (en) * 1988-07-20 1988-08-24 Rapitex Systems Ltd Apparatus for connecting towed implement to tractor
FI95949C (en) * 1995-01-12 1996-04-10 Kari Lehtimaeki Lana
US6840334B2 (en) 2002-10-23 2005-01-11 Lonnie L. Marquardt Grader attachment for a skid steer

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE202092C1 (en) * 1965-01-01
US4304307A (en) * 1980-03-07 1981-12-08 Anderson Ernest L Scraper blade attachment for tractors

Also Published As

Publication number Publication date
FI884163A0 (en) 1988-09-09
SE8601102D0 (en) 1986-03-10
FI884163A (en) 1988-09-09
SE461158B (en) 1990-01-15
FI87381C (en) 1992-12-28
WO1987005350A1 (en) 1987-09-11
FI884163D0 (en)
SE8601102L (en) 1987-09-11

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MM Patent lapsed

Owner name: HAMMARSTRAND, STEN OVE