阅读说明：本技术 作业车辆的铲刀 (Shovel blade for working vehicle ) 是由 布雷特·格雷厄姆 尼尔世·库部哈 尼古拉斯·路克尤斯克 约翰·马伦霍尔茨 迈克尔·蒂格斯 于 2020-02-14 设计创作，主要内容包括：一种作业车辆,其包括由地面接合装置支撑的车架。悬臂组件联接至车架。悬臂缸连接至车架和悬臂组件。附接件联接器联接至悬臂组件的远侧部分。至少一个倾斜缸联接至悬臂组件和附接件联接器。附接件联接至附接件联接器。附接件包括联接至附接件联接器的附接件框架。附接件框架具有下部和上部。接头联接至附接件框架的下部和铲刀。接头具有上表面和下表面,上表面定位成与表面相距一定距离。偏转缸联接至附接件框架的下部和铲刀。偏转缸的一部分位于接头的上表面的下方。(A work vehicle includes a frame supported by a ground engaging device. The boom assembly is coupled to the frame. The boom cylinder is connected to the frame and the boom assembly. The attachment coupler is coupled to the distal portion of the suspension arm assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler. The attachment is coupled to the attachment coupler. The attachment includes an attachment frame coupled to an attachment coupler. The attachment frame has a lower portion and an upper portion. The joint is coupled to the lower portion of the attachment frame and the blade. The joint has an upper surface and a lower surface, the upper surface being located at a distance from the surface. The deflection cylinder is coupled to a lower portion of the attachment frame and the blade. A portion of the deflection cylinder is located below the upper surface of the joint.)

1. A work vehicle includes:

a frame;

at least one ground engaging device coupled to the frame and configured to support the frame above a surface;

a boom assembly coupled to the frame;

at least one boom cylinder coupled to the frame and the boom assembly and configured to move the boom assembly;

an attachment coupler coupled to the distal portion of the suspension arm assembly;

at least one tilt cylinder coupled to the boom assembly and the attachment coupler and configured to move the attachment coupler;

an attachment coupled to the attachment coupler, the attachment comprising;

an attachment frame coupled to the attachment coupler, the attachment frame having a lower portion and an upper portion;

a scraper knife;

a joint coupled to a lower portion of the attachment frame and the blade, the joint having a lower surface and an upper surface, the lower surface positioned a distance from the surface; and

at least one deflection cylinder coupled to a lower portion of the attachment frame and the blade, a portion of the deflection cylinder being located below an upper surface of the joint.

2. The work vehicle of claim 1, wherein the joint is coupled to the blade at a first axis of rotation and the deflection cylinder is coupled to the blade at a second axis of rotation, and the first axis of rotation and the second axis of rotation intersect at a center of the joint.

3. The work vehicle of claim 2, further comprising a blade tilt cylinder coupled to an upper portion of the attachment frame, the blade tilt cylinder coupled to the blade at a third axis of rotation that lies in the first plane.

4. The work vehicle of claim 3, further comprising an adjustable link coupled to an upper portion of the attachment frame, the adjustable link coupled to the blade at a fourth axis of rotation lying in a second plane, wherein the second plane is parallel to the first plane.

5. The work vehicle of claim 3, further comprising an adjustable link coupled to an upper portion of the attachment frame, the adjustable link coupled to the blade at a fourth axis of rotation that lies in the first plane.

6. The work vehicle of claim 4, wherein the first plane and the second plane are offset by 30mm or less.

7. The work vehicle of claim 1, wherein the horizontal joint centerline is offset from the horizontal deflection cylinder centerline by 37mm or less.

8. The work vehicle of claim 1, wherein the joint is a ball joint.

9. The work vehicle of claim 1, wherein the blade is a dozing blade.

10. The work vehicle of claim 1, wherein the work vehicle is a compact track loader.

11. The work vehicle of claim 4, wherein the adjustable link extends above the blade.

12. A compact track loader comprising:

a frame;

at least one ground engaging device coupled to the frame and configured to support the frame above a surface;

a boom assembly coupled to the frame;

at least one boom cylinder coupled to the frame and the boom assembly and configured to move the boom assembly;

an attachment coupler coupled to the distal portion of the suspension arm assembly;

at least one tilt cylinder coupled to the boom assembly and the attachment coupler and configured to move the attachment coupler;

an attachment coupled to the attachment coupler, the attachment comprising;

an attachment frame coupled to the attachment coupler, the attachment frame having a lower portion and an upper portion;

a bulldozer blade;

a joint coupled to the lower portion of the attachment frame and the dozing blade, the joint having a lower surface and an upper surface, the lower surface being spaced a distance from the surface; and

at least one deflection cylinder coupled to a lower portion of the attachment frame and the dozing blade, a portion of the deflection cylinder being located below an upper surface of the joint.

13. The compact track loader of claim 12, wherein the joint is coupled to the dozing blade at a first axis of rotation that lies in a first plane and the deflection cylinder is coupled to the dozing blade at a second axis of rotation, the first and second axes of rotation intersecting at a center of the joint.

14. The compact track loader of claim 13, further comprising a blade tilt cylinder coupled to an upper portion of the attachment frame, the blade tilt cylinder coupled to the dozing blade at a third axis of rotation that lies in the first plane.

15. The compact track loader of claim 14, further comprising an adjustable link coupled to an upper portion of the attachment frame, the adjustable link coupled to the dozing blade at a fourth axis of rotation lying in a second plane, the first plane parallel to the first plane.

16. The compact track loader of claim 14, further comprising an adjustable link coupled to an upper portion of the attachment frame, the adjustable link coupled to the dozing blade at a fourth axis of rotation that lies in the first plane.

17. The compact track loader of claim 15, wherein the first plane and the second plane are offset by 30mm or less.

18. The compact track loader of claim 12, wherein the offset of the horizontal joint centerline from the horizontal deflection cylinder centerline is 37mm or less.

19. The compact track loader of claim 15, wherein the adjustable link extends above the dozing blade.

20. A work vehicle, comprising:

a frame;

at least one ground engaging device coupled to the frame and configured to support the frame above a surface;

a boom assembly coupled to the frame;

at least one boom cylinder coupled to the frame and the boom assembly and configured to move the boom assembly;

an attachment coupler coupled to the distal portion of the suspension arm assembly;

at least one tilt cylinder coupled to the boom assembly and the attachment coupler and configured to move the attachment coupler;

an attachment coupled to the attachment coupler, the attachment comprising;

an attachment frame coupled to the attachment coupler, the attachment frame having a lower portion and an upper portion;

a scraper knife;

a joint coupled to a lower portion of the attachment frame and the blade, the joint having a lower surface and an upper surface, the lower surface positioned a distance from the surface; and

a blade tilting cylinder coupled to an upper portion of the attachment frame and the blade;

an adjustable link coupled to an upper portion of the attachment frame and the blade; and

at least one deflection cylinder coupled to a lower portion of the attachment frame and the blade, a portion of the deflection cylinder being located below an upper surface of the joint.

Technical Field

The present disclosure relates generally to work vehicles such as skid steer loaders, compact track loaders, and more particularly to a blade for a work vehicle.

Background

In order to control the grade of the surface of various attachments having pitch, pitch and yaw adjustment interactions, multiple passes are typically required to correct grade errors due to the interactions.

Disclosure of Invention

In one embodiment, a work vehicle is disclosed. The work vehicle includes a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. The boom assembly is coupled to the frame. At least one boom cylinder is coupled to the frame and the boom assembly and configured to move the boom assembly. The attachment coupler is coupled to the distal portion of the suspension arm assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler and is configured to move the attachment coupler. The attachment is coupled to the attachment coupler. The attachment includes an attachment frame coupled to an attachment coupler. The attachment frame has a lower portion and an upper portion. The attachment further comprises a blade. The joint is coupled to the lower portion of the attachment frame and the blade. The joint has a lower surface and an upper surface. The lower surface is positioned at a distance from the surface. At least one deflection cylinder is coupled to the lower portion of the attachment frame and the blade. A portion of the deflection cylinder is located below the upper surface of the joint.

In another embodiment, a compact track loader is disclosed. A compact track loader includes a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. The boom assembly is coupled to the frame. At least one boom cylinder is coupled to the frame and the boom assembly and configured to move the boom assembly. The attachment coupler is coupled to the distal portion of the suspension arm assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler and is configured to move the attachment coupler. The attachment is coupled to the attachment coupler. The attachment includes an attachment frame coupled to an attachment coupler. The attachment frame has a lower portion and an upper portion. The attachment also includes a dozing blade. The joint is coupled to the lower portion of the attachment frame and the dozing blade. The joint has a lower surface and an upper surface. The lower surface is positioned at a distance from the surface. At least one yaw cylinder is coupled to a lower portion of the attachment frame and the dozing blade. A portion of the deflection cylinder is located below the upper surface of the joint.

In yet another embodiment, a work vehicle is disclosed. The work vehicle includes a frame. At least one ground engaging device is coupled to the frame and configured to support the frame above a surface. The boom assembly is coupled to the frame. At least one boom cylinder is coupled to the frame and the boom assembly and configured to move the boom assembly. The attachment coupler is coupled to the distal portion of the suspension arm assembly. At least one tilt cylinder is coupled to the boom assembly and the attachment coupler and is configured to move the attachment coupler. The attachment is coupled to the attachment coupler. The attachment includes an attachment frame coupled to an attachment coupler. The attachment frame has a lower portion and an upper portion. The attachment further comprises a blade. The joint is coupled to the lower portion of the attachment frame and the blade. The joint has a lower surface and an upper surface, the lower surface being located at a distance from the surface. A tilt cylinder is coupled to an upper portion of the attachment frame and the blade. An adjustable link is coupled to an upper portion of the attachment frame and the blade. At least one deflection cylinder is coupled to the lower portion of the attachment frame and the blade. A portion of the deflection cylinder is located below the upper surface of the joint.

Other features and aspects will become apparent by consideration of the detailed description and accompanying drawings.

Drawings

FIG. 1 is a perspective view of a work vehicle having a blade.

Fig. 2 is a partially enlarged side view of the work vehicle of fig. 1.

Fig. 3 is a partially enlarged side view of the work vehicle of fig. 1.

Fig. 4 is a partially enlarged side view of the work vehicle of fig. 1.

Fig. 5 is an enlarged bottom perspective view of a portion of the work vehicle of fig. 1.

Fig. 6 is a partially enlarged side view of a work vehicle according to another embodiment.

Before any embodiments are explained in detail, it is to be understood that the disclosure is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the following drawings. The disclosure is capable of other embodiments and of being practiced or of being carried out in various ways. Other embodiments of the invention may comprise any combination of features from one or more dependent claims and these features may be incorporated in any independent claim, either collectively or individually.

As used herein, unless otherwise limited or modified, a list of elements (elements in the list being separated by a conjunction (e.g., "and") and further preceded by the phrase "one or more" or "at least one") denotes a configuration or arrangement that may include individual elements of the list or any combination of such elements. For example, "at least one of A, B and C" or "one or more of A, B and C" means the possibility of any combination of two or more of A only, B only, C only or A, B and C (e.g., A and B; B and C; A and C; or A, B and C).

Detailed Description

Fig. 1 shows a work vehicle 10 having a frame 15. The work vehicle 10 is shown as a compact track loader 20. The present disclosure contemplates other types of work vehicles 10, including, for example, skid steer loaders and dozers. At least one ground engaging device 25 is coupled to frame 15 and is configured to support frame 15 above surface 30 and move work vehicle 10 along surface 30. The illustrated ground engaging devices 25 are a pair of tracks 35. The ground engaging means 25 may be wheels (not shown).

An operator station 40 is connected to the frame 15. The operator station 40 may have a door (not shown).

Boom assembly 45 is coupled to frame 15. Boom assembly 45 includes a pair of upper links 50 coupled to frame 15. A pair of lower links 55 are coupled to frame 15. A pair of boom cylinders 60 are coupled to frame 15, with one boom cylinder 60 on each side of work vehicle 10. Boom cylinder 60 may be a hydraulic actuator 65 or an electric actuator 70. A pair of boom arms (boomerams) 75 are coupled to upper link 50 and lower link 55 and are positioned one on each side of work vehicle 10. A pair of booms 75 are connected to the boom cylinder 60. Boom cylinder 60 is configured to move boom assembly 45.

Referring to fig. 2, the attachment coupler 80 is coupled to the distal portion 85 of the boom assembly 45. At least one tilt cylinder 90 is coupled to the boom assembly 45 and the attachment coupler 80 and is configured to move the attachment coupler 80. The tilt cylinder 90 may be a hydraulic actuator 92 or an electronic actuator 94. The tilt cylinder 90 has a fully extended position 95 (FIG. 3), a mid-range position 100 (FIG. 2) and a fully retracted position 105 (FIG. 4).

With continued reference to fig. 2, the attachment 110 is coupled to the attachment coupler 80. The attachment 110 includes an attachment frame 115 coupled to the attachment coupler 80. The attachment frame 115 has a lower portion 120, an upper portion 125, a front surface 127 and a rear surface 130. The rear surface 130 has an upper half 135 and a lower half 140. Referring to fig. 2, in the operational position 145 of the attachment 110, the rear surface 130 is inclined forward 150, or in the direction of the forward stroke, with the upper half 135 located forward 150 of the lower half 140, which helps to increase the lift height of the attachment 110 when the tilt cylinder 90 is in the fully retracted position 105, as the tilt cylinder 90 has more travel from the more extended mid-range position 100 to the fully retracted position 105. Referring to fig. 4, in the raised position 155 of the attachment 110, the rear surface 130 is inclined to the rear 160, or in the direction of the rearward stroke, and the lower half 140 of the rear surface 130 is located forward 150 of the upper half 135.

Referring to fig. 5, the joint 165 is coupled to the lower portion 120 of the attachment frame 115 and the blade 170. The fitting 165 has a lower surface 175 and an upper surface 180. Referring to fig. 2, lower surface 175 is positioned a distance 185 from surface 30.

With continued reference to fig. 2, the joint 165 may be a ball joint 190. The joint 165 may be coupled to the blade 170 at a first axis of rotation 195, and the at least one deflection cylinder 200 may be coupled to the blade 170 at a second axis of rotation 205. The deflection cylinder 200 may be a hydraulic actuator 202 or an electronic actuator 204. The second axis of rotation 205 may lie in a first plane 210 (fig. 1). The first axis of rotation 195 and the second axis of rotation 205 may intersect at or near the center of the joint 165. The first axis of rotation 195 may be perpendicular to the second axis of rotation 205.

The blade 170 may be a dozing blade 215. Dozer blade 215 may have an operating position 145 (FIG. 2) with tilt cylinder 90 in mid-range position 100 and a raised position 155 (FIG. 4) with tilt cylinder 90 in fully retracted position 105.

Referring to fig. 2, a deflection cylinder 200 may be coupled to the lower portion 120 of the attachment frame 115 and the blade 170. A portion 225 of the deflection cylinder 200 may be positioned below the upper surface 180 (fig. 5) of the joint 165.

The horizontal joint centerline 230 of the joint 165 may be offset from the horizontal deflection cylinder centerline 235 of the deflection cylinder 200 by 37 millimeters or less. Advantageously, this helps to reduce cross-functional interactions, such as unwanted tilting of blade 170 during a yawing motion, which improves control accuracy over the grade of surface 30 with fewer passes of work vehicle 10. Alternatively, the deflection cylinder 200 may be positioned such that the horizontal deflection cylinder centerline 235 and the horizontal joint centerline 230 are coincident lines with no offset (not shown) between them to reduce cross-functional interaction.

Referring to fig. 5, a blade tilt cylinder 240 may be coupled to the upper portion 125 of the attachment frame 115. The blade tilt cylinder 240 may be a hydraulic actuator 242 or an electronic actuator 244. Referring to fig. 2, the blade tilt cylinder 240 may be coupled to the blade 170 at a third axis of rotation 245 that lies in the first plane 210 (fig. 1). The blade tilting cylinder 240 is configured to tilt one side of the blade 170 in an upward or downward direction.

The adjustable link 250 may be coupled to the upper portion 125 of the attachment frame 115. Adjustable link 250 may include threads 252 for manual adjustment. Alternatively, adjustable linkage 250 may be a hydraulic actuator 253 or an electronic actuator 254. The adjustable link 250 may be coupled to the blade 170 at a fourth axis of rotation 255 that lies in a second plane 260 (fig. 1), the second plane 260 being forward 150 of and parallel to the first plane 210. The first plane 210 and the second plane 260 may be offset by 30mm or less to reduce cross-functional interaction.

Referring to fig. 6, alternatively, the adjustable link 250 may be coupled to the blade 170 at a fourth axis of rotation 255 that lies in the first plane 210. The adjustable link 250 may extend partially or completely over the blade 170.