Motorized pivot device for a plow

专利摘要:
Plow pivot device, which comprises a base adapted to be coupled to a frame part and rotationally fixed thereto. A pivot device is coupled to the base and includes a motor mounted on a first ring gear, a planetary gear device driven by the motor, and which includes a planet carrier device having a plurality of split planetary gears engaging both the first ring gear and a second ring gear which is fixed to the base, to create rotation of the first ring. A plow blade is attached to the first ring gear via a pivot base which includes a force absorbing system therein to protect the planetary gear device from damage. (Fig. 1)
公开号:SE1350736A1
申请号:SE1350736
申请日:2013-06-17
公开日:2014-01-18
发明作者:Ronald L Elliot
申请人:Warn Ind Inc；
IPC主号:

专利说明:

[6] Additional areas of application will become apparent based on the description provided herein. The description and specific examples in this summary are for illustrative purposes only and are not intended to limit the scope of this publication.
[7] The drawings described herein are for illustrative purposes only of selected embodiments and not of all possible embodiments, and are not intended to limit the scope of the present publication.
[8] Figure 1 is a side view of the pivot device for a plow according to the principles of the present publication, mounted on a vehicle;
[9] Figure 2 is a perspective view of the pivot device for a plow according to the present publication;
[10] Figure 3 is an exploded view of a part of the pivot device for a plow in Figure 1;
[11] Figure 4 is a cross-sectional view of the pivot device for a plow in accordance with the principles of the present disclosure; and
[12] Figure 5 is a schematic view of the electrical circuits in the pivot device for a plow in accordance with the present publication.
[13] Corresponding reference numbers indicate corresponding parts, the same numbering is used in all views of the drawings.
[14] Exemplary embodiments will now be described in more detail, with reference to the accompanying drawings.
[15] Exemplary embodiments are provided in such a way that this publication is detailed, and fully demonstrates the scope of those skilled in the art. A number of specific details are shown, such as examples of specific components, devices and methods, to provide a thorough understanding of the embodiments of the present publication. It will be clear to those skilled in the art that specific details need not be used, that exemplary embodiments may be made in many different forms and that neither should be construed as limiting the scope of publication. In some exemplary embodiments, well-known processes, well-known device structures, and well-known techniques are not described in detail.
[16] The terminology used herein is intended to describe only specific exemplary embodiments and is not intended to be limiting. As used herein, singular forms, including "one", "one" and singular noun forms may be intended to include the plural forms as well, unless the context clearly indicates that this is not the case. The terms "includes", "includes", "includes", "includes", "includes" and "has" are inclusive and therefore specify the presence of the mentioned functions, numbers, steps, operations, elements and / or components but do not exclude the use of one or more other functions, numbers, steps, operations elements and / or groups thereof. The methods, steps, processes and operations described herein should not be construed as requiring their operation in the specific order discussed or illustrated, unless specifically identified as an embodiment in that order. It should also be understood that additional or alternative steps may be used.
[17] When an element or layer is called to be "on", "engaged with", "associated with" or "connected to" another element or layer, it may be directly on, engaged with, associated with or connected to to the second element or layer, or there may be intermediate elements or layers. On the other hand, if an element is described as being "directly on", "directly engaged with", "directly connected with" or "directly connected to" another element or layer, then there must be no intermediate elements or layers. Other words used to describe the relationships between the elements should be interpreted in the same way (eg "between" versus "directly between", "adjacent" versus "directly adjacent" etc.) As used herein, the expression "and / or" includes all combinations of one or more of the associated listed terms.
[18] Although the terms first, second, third, etc. may be used herein to describe various elements, components, areas, layers and / or compartments, these elements, components, areas, layers and / or compartments should not be limited by these terms. . The terms are used only to distinguish an element, a component, an area, a layer or a department from another element, another component, another area, another layer or another department. Terms such as "first", "second" and other numerical terms, when used herein, do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, a first component, a first area, a first layer or a first section discussed below may be called a second element, a second component, a second area, a second layer or a second section without departing from the teachings of the exemplary embodiments. _
[19] Spatial relative terms such as "inner", "outer", "below", "below", "lower", "above", "upper" and the like can be used herein to simplify the description to describe an element or a detail's relation to other elements or other detail (s) as illustrated in the figures. Spatially relative terms may be intended to include different orientations of the device when in use or in operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned upside down, elements described as "below" or "below" other elements or details will then be oriented "above" the other elements or details. Thus, the example term "below" may include an orientation both above and below. The device can be oriented in another way (rotated 90 degrees or other orientations) and the spatially relative descriptions used here should be interpreted in this way.
[20] Referring to Figure 1, a plow arrangement 10 may be mounted on a vehicle, such as a work vehicle 12. A vehicle mounting structure 14 of the plow device 10 may be coupled to a frame 16 on vehicle 12. More specifically, the vehicle mounting structure 14 may be laterally fixed relative to the frame 16 and vertically pivotable for upward and downward movement of the plow device 10. A pivot device 18 for a plow may have a plow blade 20 drivably coupled thereto.
[21] Referring to Figure 2, the motorized pivot device 18 may include a pivot bracket 22 that connects the plow blade 20 to a planetary gear located in the gear housing 24. Referring to Figure 3, the bracket 22 may include a bottom plate 28 and a sidewall structure 30 extending vertically therefrom. The sidewall structure 30 may be provided with a plurality of openings 32, generally located at 120 degree intervals around a large circular opening 34 located in the base plate 28. The circular opening 34 may receive a lower ring gear 38 of the planetary gear set 24 contained therein. An axial washer 36 can be placed on an upper surface of the base plate 28 to reduce friction from axial load. The lower ring gear 38 may include a radially extending flange portion 40 resting on the axial washer 36. The lower ring gear 38 may be secured to a fixed base plate 42 on the vehicle mounting structure 14 by fasteners 44 passing through the openings 46 in the base plate 42 and screwed into the openings 48 in the lower ring gear 38 as best shown in Figure 4. The sidewall structure 30 of the pivoting bracket 22 may further include mounting details 49 for mounting the pivoting bracket 22 to the plow blade 20. Alternatively, an optional blade base 120 may be used to enable the pivot device 18 to be used with existing plow devices or the pivoting bracket 22 and the blade base 120 together may form part. The bracket for pivoting 22 may be attached to the mounting openings 122 of the blade base 120 while the plow blade 20 may be mounted to the mounting openings 124.
[22] The planetary gear device 24 can be configured as a multi-stage, split-ring planetary gear set, and may include a first sun gear 50 driven by the motor 26 and provide driving power to a first planet carrier 52 in a first step in a planetary gear system via the planet gears 53.
[23] The profiles and shape of the teeth of the planetary gear members 66a, 66b may be different to provide proper engagement with the fixed ring gear 70 and the lower ring gear 38. The compact arrangement of the multi-stage planetary gear set 24 provides a compact arrangement for providing the downshift. In addition, this type of differential planetary gear with split ring acts as a brake, in that it is difficult to drive the gear set backwards, no secondary braking system being required. The elimination of a braking system can significantly reduce the cost and weight of a pivot device.
[24] The upper ring gear 70 is mounted on the mounting openings 32 in the pivot base 22 with a shock absorbing system 74 which may include a damping block 76 attached to the wall structure 30 of the pivot base 22 via fasteners 77 extending through the mounting members 32. The damping block 76 is located in the pivot base 76. a compression cavity 78 of a housing 80 located in the upper ring gear 70 and includes a pair of elastomeric bushings 82 located on opposite sides of the damping block 76 to absorb shock forces that occur in cases where the plow blade 20 strikes an obstacle, thereby providing shock absorption to prevent damage to the teeth in the planetary gear system 24. In addition, the damping block fasteners 77 are formed with such strength that the fasteners 77 would break or fall off if an impact force exceeds a predetermined level which could cause damage to the teeth. In other words, the fasteners 77 are designed to break before transmitting forces that would damage the teeth of the planetary gear set 24.
[25] The motor 26 can be mounted on a mounting device 90 located on the upper ring gear 70 and can be fixed in place by means of fasteners 92 which are fixed in the mounting device 90. It will be understood that the second sun gear 54 and the third sun wheel 60 may be rotatably mounted on a shaft 96 fixed to lower ring gear 38. An arm 200 may extend from the lower ring gear 38 to support a magnet 202 thereon, to provide feedback on the position of the plow blade, as will be described in more detail in this document. .
[26] In operation, the motor 26 is actuated to provide propulsion to the planetary gear set 24 which provides downshifting and increasing torque to drive the upper ring gear 70 so that it rotates. The relatively slow rotation of the upper ring gear 70 causes pivoting of the pivot base 22 and the plow blade 20 in the desired direction while the magnet 202 provides a function of electronic control equipment that can be used to limit how far the plow blade 20 moves. The shock absorbing system 74 enables the plow blade 20 to receive normal shock forces without creating forces that could damage the teeth of the planetary gear system 24. The fasteners 77 are designed to break or break if the impact forces against the plow blade 20 are such that they would could damage the planetary gear system 24. It should be noted that replacement of the fasteners 77 is a relatively simple operation, whereas replacement of a planetary gear system would be a relatively complex and costly operation.
[27] Referring to Figure 5, the electronic circuits of the motorized pivot device will now be described. As illustrated, the motor 26 receives electrical power via cables 100 connected to a control unit 102.
[28] The above description of embodiments has been given by way of illustration and description. It is not intended to be exhaustive or to limit this publication. Individual elements or details relating to a specific embodiment are generally not limited to this specific embodiment, but are, where applicable, interchangeable and may be used in a selected embodiment even if this embodiment is not specifically shown or described.
The same can also be varied in many ways. Such variations shall not be construed as a departure from this publication, and any such modifications are intended to be included within the scope of this publication. 10

权利要求:
Claims (16)
[1]
A plow pivot device, comprising: a base coupled to a portion of a frame (16), a pivot device (18) mounted on the base and comprising a motor (26) mounted on a first ring gear (70), a planetary gear set (24) driven of said motor (26) and comprising a planetary gear carrier (62) having a plurality of coupled planetary gears (66) engaging both said first ring gear (70) and a second ring gear (38) which can rotate relative to each other, and a plow blades (20) and a pivot base (22) drivably attached to said first ring gear (70) for having their angular position changed by rotation of said first ring gear (70).
[2]
The plow pivot device of claim 1, wherein said planetary gear device (24) is a multi-stage planetary gearbox.
[3]
The plow pivot device of claim 1, wherein said first ring gear (70) is limited in its rotation relative to said pivot base (22) by an elastomeric shock absorber (82).
[4]
The plow pivot device of claim 3, wherein said elastomeric shock absorber (82) comprises at least one block (76) mounted on said pivot base 11 (22) between a pair of elastomeric shock absorbers (82) mounted on said first ring gear (70).
[5]
A plow pivot device according to claim 4, wherein at least one block (76) is mounted on said pivot base (22) with at least one fastener (77) arranged to break at an impact force against said plow blade (20) before damage occurs to the teeth in said planetary gear device (24).
[6]
The plow pivot device of claim 5, wherein said at least one block (76) comprises a plurality of blocks (76) evenly distributed around a circumference of said first ring gear (70).
[7]
The plow pivot device according to claim 5, wherein said at least one block (76) is mounted on said pivot base (22) with a pair of fasteners (77) having a combined strength arranged to break at an impact force against said plow blade (20) before damage. occurs on the teeth of said planetary gear (24).
[8]
The plow pivot device of claim 1, further comprising a control unit (102) and at least one position sensor (108L, 108R) for providing feedback to the control unit (102) regarding the position of the plow blade (20) and for stopping the motor (26).
[9]
A plow pivot device comprising: a base coupled to a frame unit (16); 12 a pivot device (18) mounted on the base and comprising a motor (26) drivably coupled to a sun gear (60) in a planetary gear device (24) including a planetary gear carrier (62) having a plurality of coupled planetary gears (66) gripping into both the first ring gear (70) and a second ring gear (38), which are rotatable relative to each other and a plow blade (20) and a pivot base (22) which are drivably coupled to said first ring gear (70) in order to have their angular position changed by rotation of said first ring gear (70).
[10]
The plow pivot device of claim 9, wherein said planetary gear device (24) is a multi-stage planetary gearbox.
[11]
The plow pivot device of claim 9, wherein said first ring gear (70) is limited in its rotation relative to said pivot base (22) by an elastomeric shock absorber (82).
[12]
The plow pivot device of claim 11, wherein said elastomeric shock absorber (82) comprises at least one block (76) mounted on said pivot base (22) and between a pair of elastomeric shock absorbers (82) mounted on said first ring gear (70).
[13]
The plow pivot device according to claim 12, wherein said at least one block (76) is mounted on said pivot base (22) with at least one fastener (77) having a strength designed to break at a shock load against said plow blade (20) before damage occurs to the teeth of said planetary gear device (24).
[14]
The plow pivot device of claim 13, wherein said at least one block (76) comprises a plurality of blocks (76) evenly distributed around a circumference of said first ring gear (70).
[15]
A plow pivot device according to claim 13, wherein said at least one block (76) is mounted on said pivot base (22) with a pair of fasteners (77) having a combined strength arranged to break at a shock load against said plow blade (20) before damage. occurs on the teeth of said planetary gear device (24).
[16]
The plow pivot device of claim 9, further comprising a control unit (102) and at least one position sensor (1108, 108R) for providing feedback to the control unit (102) on the position of the plow blade (20) and stopping the engine (26). 14

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同族专利:

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CA2815650A1|2014-01-17|

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法律状态:
2015-12-29| NAV| Patent application has lapsed|

优先权:

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US13/551,250|US8646545B1|2012-07-17|2012-07-17|Power pivot device for a plow|

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