CN213625753U

CN213625753U - Working device of skid steer loader and skid steer loader

Info

Publication number: CN213625753U
Application number: CN202022347141.4U
Authority: CN
Inventors: 汤雄; 匡前友; 曲国锐; 边斌; 李仟
Original assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Current assignee: Zoomlion Heavy Industry Science and Technology Co Ltd; Shaanxi Zoomlion West Earthmoving Machinery Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-06
Anticipated expiration: 2030-10-20

Abstract

The utility model relates to an engineering machine tool specifically, relates to a skid-steer loader's equipment and skid-steer loader. The working device of the skid steer loader is used for being arranged on a frame structure (3) of the skid steer loader and located on the side face of a cab (5) of the skid steer loader, the working device comprises a movable arm (16), the movable arm (16) comprises an avoiding section (10), when the movable arm (16) is located at a driving position, the avoiding section (10) is located in an area where the movable arm (16) is close to a side window of the cab, and the top of the avoiding section (10) is arranged in a concave mode towards the bottom of the frame structure (3) of the skid steer loader. The working device of the skid steer loader can reduce the shielding of the movable arm on the side surface of the cab and increase the side view of a driver.

Description

Working device of skid steer loader and skid steer loader

Technical Field

The utility model relates to an engineering machine tool specifically, relates to a skid-steer loader's equipment and skid-steer loader.

Background

The skid steer loader is a small-sized engineering machine with compact structure and flexible action, the working device of the skid steer loader is a main structural component for bearing load of the machine, the structural form of the working device determines the view of a driver, and the skid steer loader has great influence on the unloading height and the unloading distance of the machine. Usually, the movable arm main body is a rectangular pipe, the movable arm part close to the side window of the cab is arranged in an inclined straight line segment, the movable arm of the section is higher in position, the shielding area of the side window is large, the side visual blind area is large, and the side visual field of a driver is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a skid-steer loader's equipment and skid-steer loader, this skid-steer loader's equipment can reduce the movable arm to the sheltering from of driver's cabin side, increases driver's side field of vision.

In order to achieve the above object, the utility model provides a skid steer loader's equipment, equipment set up in skid steer loader's frame is structural and is located the side of skid steer loader's driver's cabin, equipment includes the movable arm, the movable arm is including dodging the section, the movable arm is located when going the position, it is located to dodge the section the movable arm is close to the region of driver's cabin side window, dodge the top of section to the sunken setting of bottom direction of skid steer loader's frame construction.

Preferably, the movable arm further includes a first section and a second section, and the first section, the avoiding section and the second section are sequentially arranged along the length direction of the movable arm.

Preferably, the top surface of the avoiding section is an arc-shaped surface; and/or the top surface of the first section is planar.

Preferably, when the movable arm is located at a driving position, the rear end of the avoidance section extends to the rear end of the cab, and the front end of the avoidance section extends to the front of a driver seat of the cab.

Preferably, when the movable arm is located at a driving position, the reference length is set to be 1, the driver seat index point is a point G, a horizontal distance L1 between a point K at the rear end of the first section and the point G satisfies 0.8 ≤ L1 ≤ 1.2, and a vertical distance L2 between the point K and the point G satisfies 0.611 ≤ L2 ≤ 0.916; the horizontal distance L3 between the rear end point B of the avoidance section and the point G meets the condition that the distance L3 is more than or equal to 0.472 and less than or equal to 0.709, and the vertical distance L4 between the point B and the point G meets the condition that the distance L4 is more than or equal to 0.374 and less than or equal to 0.562; the horizontal distance L5 between the G point and the front end point C of the avoidance section meets the condition that L5 is more than or equal to 0.146 and less than or equal to 0.219, and the vertical distance L6 between the G point and the C point meets the condition that L6 is more than or equal to 0.09 and less than or equal to 0.136.

Preferably, the working device includes a driving mechanism for driving the boom to switch between the traveling position and the lift position.

Preferably, the driving mechanism includes a lift cylinder, a cylinder of the lift cylinder is fixedly disposed on the frame structure, and a telescopic rod of the lift cylinder extends into the cavity of the movable arm and is hinged to the movable arm.

Preferably, the working device comprises a safety support member for wrapping the outside of the extended telescopic rod to prevent the telescopic rod from retracting in an abnormal state, and the movable arm is provided with an installation part for installing the safety support member.

Preferably, the installation department including set up in the mounting panel at swing arm middle part with set up in the anterior cardboard of swing arm, be provided with first pinhole on the mounting panel, safety support spare including have bar open-ended bar casing with set up in the connecting plate of the first end of bar casing, first end is provided with and is used for mounting panel male jack, be provided with on the connecting plate with insert in the jack on the mounting panel the second pinhole that first pinhole corresponds, first end with connect through inserting between the mounting panel in first pinhole with the bolt in the second pinhole, the cardboard is used for the card to be located in the opening of the second end of bar casing.

Preferably, the front part and the rear part of the boom are respectively provided with an opening for passing a hydraulic pipeline, and the hydraulic pipeline passes through the opening from the inside of the cavity of the boom.

Preferably, a pipe clamp seat for fixing the hydraulic pipeline is arranged at an opening hole at the rear part of the movable arm; and/or a fixing plate for fixing a hydraulic joint is arranged at the opening of the front part of the movable arm.

Preferably, the working device includes a pair of the movable arms disposed at left and right sides of the cab, and rear ends of the pair of the movable arms are connected by a connecting rod.

Preferably, the working device comprises a first rocker and a second rocker, one end of the first rocker and one end of the second rocker are hinged to the movable arm respectively, and the other end of the first rocker and the other end of the second rocker are hinged to the frame structure respectively.

The utility model discloses the second aspect provides a skid-steer loader, skid-steer loader include the frame construction, set up in the structural driver's cabin of frame and as above skid-steer loader's equipment.

Through the technical scheme, the top surface of the middle part of the movable arm corresponding to the cab side window is set to be in the form of the concave depression, so that the height of the middle part of the movable arm corresponding to the cab side window can be reduced, the shielding area of the movable arm on the side surface of the cab is reduced, and the side view of a driver is increased.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural view of one embodiment of the skid steer loader of the present invention;

FIG. 2 is a schematic structural view of an embodiment of a working device of the skid steer loader of the present invention;

FIG. 3 is a schematic view of a portion of the working device of the skid steer loader shown in FIG. 2;

FIG. 4 is another partial schematic illustration of the working device of the skid steer loader shown in FIG. 2;

FIG. 5 is a schematic view of the safety support of the working device of the skid steer loader of the present invention shown without the safety support mounted to the boom;

fig. 6 is a schematic structural view of an embodiment of the present invention in which a work implement of a skid steer loader is connected to a bucket.

Description of the reference numerals

1. A first rocker; 2. a second rocker; 3. a frame structure; 4. lifting the oil cylinder; 5. a cab; 6. a safety support; 7. a bucket; 8. a connecting rod; 9. a first stage; 10. an avoidance section; 11. a second stage; 12. a hydraulic line; 13. a tube holder; 14. a hydraulic joint; 15. a handrail; 16. a movable arm; 17. mounting a plate; 18. clamping a plate; 19. a bolt; 20. a fixing plate; 21. a connecting plate.

Detailed Description

The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, unless otherwise stated, the terms "front and rear" are used generally in terms of the orientation of the skid steer loader when the skid steer loader is traveling.

The utility model discloses a first aspect provides a skid steer loader's equipment, equipment set up in just be located on skid steer loader's frame construction 3 the side of skid steer loader's driver's cabin 5, equipment includes swing arm 16, swing arm 16 is including dodging section 10, swing arm 16 is located when going the position, it is located to dodge section 10 swing arm 16 is close to the region of driver's cabin side window, dodge the top of section 10 to the sunken setting of bottom direction of skid steer loader's frame construction 3. The avoidance segment 10 corresponds to a side window of the cab 5, and is inclined downward from the rear to the front in a normal position of the boom 16 (in a normal skid steer loader, the boom is lowered to the lowest position, and therefore the position of the boom is the lowest position), the front portion of the boom 16 is low in height and does not affect the lateral field of view of the driver, and the rear portion is high in height, but is located behind the cab 5 and does not affect the lateral field of view of the driver, so that the heights of the front portion and the rear portion of the boom 16 may be constant, the height of the middle portion is between the rear portion and the front portion, and the middle portion of the boom 16 is a portion most likely to affect the lateral field of view of the driver, and therefore, the top surface of the middle portion is provided in a downwardly concave form.

With the above-described configuration, by providing the top surface of the middle portion of the boom 16 corresponding to the side window of the cab 5 in the form of a downward recess, the height of the middle portion of the boom 16 corresponding to the side window of the cab 5 can be reduced, the shielded area of the boom 16 against the side surface of the cab 5 can be reduced, and the side view of the driver can be increased.

As an embodiment, as shown in fig. 2, the boom 16 further includes a first section 9 and a second section 11, and the first section 9, the avoidance section 10, and the second section 11 are arranged in this order along a longitudinal direction of the boom 16. Namely, the avoidance line 10 is located at the middle of the boom 16 in the length direction. As shown in fig. 1, a first section 9 is between the point K and the point B, an avoidance section 10 is between the point B and the point C, a second section 11 is between the point C and the most front end of the movable arm 16, and the front end of the second section 11, namely, the end far away from the avoidance section 10 is connected with the bucket 7 of the skid steer loader.

In one embodiment, as shown in fig. 1-2, the top surface of the relief section 10 is an arc-shaped surface. Optionally, the bottom surface of the avoidance section 10 is an arc convex surface, that is, the avoidance section 10 is bent downward as a whole, so that the rigidity of the avoidance section 10 is ensured while the height of the avoidance section 10 in the driving position is reduced.

In one embodiment, as shown in fig. 2, the top surface of the first section 9 is planar. That is, the top surface between the points K and C (the first section 9 and the avoidance section 10) is changed from the original form of all straight sections into the form of straight section plus circular arc section, so as to reduce the top surface height of the section BC and increase the side view of the cab 5. The provision of the top surface of the first section 9 in the form of a plane facilitates the machining without affecting the lateral view of the cab 5, since straight sections are easier to machine.

As another embodiment, the top surface of the first segment 9 may be a concave surface, specifically, an arc-shaped concave surface, or the top surfaces of the first segment 9 and the avoiding segment 10 may be an arc-shaped concave surface or a concave surface with another shape as a whole.

In one embodiment, as shown in fig. 1, when the boom 16 is located at the driving position, the rear end of the avoidance segment 10 extends to the rear end of the cab 5, and the front end of the avoidance segment 10 extends to the front of the driver seat of the cab 5. That is, when the boom is located at the traveling position, the first section 9 is located behind the cab, a part of the second section 11 corresponds to the side window of the cab, and the remaining part of the second section 11 is located in front of the cab, and since the height of the second section 11 itself is low, the side view of the driver is not affected, it is not necessary to change the part corresponding to the side window of the cab, and only the height of the middle part (avoidance section 10) that is high and affects the side view of the driver is required to be changed.

As an embodiment, as shown in fig. 1, when the movable arm 16 is located at a driving position, a reference length is set to 1, a driver Seat Index Point (SIP) is a point G, a horizontal distance L1 between a point K at the rear end of the first section 9 and the point G satisfies 0.8 ≦ L1 ≦ 1.2, and a vertical distance L2 between the point K and the point G satisfies 0.611 ≦ L2 ≦ 0.916; the horizontal distance L3 between the rear end point B of the avoidance segment 10 and the point G meets the condition that the L3 is more than or equal to 0.472 and less than or equal to 0.709, and the vertical distance L4 between the point B and the point G meets the condition that the L4 is more than or equal to 0.374 and less than or equal to 0.562; the horizontal distance L5 between the G point and the front end point C of the avoidance segment 10 is more than or equal to 0.146 and less than or equal to L5 and less than or equal to 0.219, and the vertical distance L6 between the G point and the C point is more than or equal to 0.09 and less than or equal to L6 and less than or equal to 0.136. The boom 16 is set with reference to the above conditions, and the side view of the driver can be further improved.

In one embodiment, the work implement includes a drive mechanism for driving the boom 16 between the travel position and the lift position.

As an embodiment, as shown in fig. 1-2, the driving mechanism includes a lift cylinder 4, a cylinder of the lift cylinder 4 is fixed on the frame structure 3, and a telescopic rod of the lift cylinder 4 extends into a cavity of the movable arm 16 and is hinged to the movable arm 16. As shown in fig. 1, a hinge point between the movable arm 16 and the telescopic rod of the lift cylinder 4 is a point D, and the point D is located inside a cavity of the movable arm 16. The design solves the problem of insufficient stroke of the lifting oil cylinder 4 caused by downward bending of the movable arm 16, ensures the unloading height of the machine and increases the stroke of the lifting oil cylinder 4. The driving position refers to a position where the movable arm 16 is located when the piston rod of the lift cylinder 4 does not extend outward, the lifting position refers to a position where the movable arm 16 is located when the piston rod of the lift cylinder 4 extends outward to lift the movable arm 16, and the lifting position includes a position where the movable arm 16 is located at the highest position and also includes a position where the movable arm 16 is located between the highest position and the driving position.

Preferably, the length D1 from the hinge point D to the bottom end of the boom 16 is 20% to 40% of the length D11 of the cross section of the boom 16.

In one embodiment, the working device includes a safety support 6 for wrapping the outside of the extended telescopic rod to prevent the telescopic rod from retracting in an abnormal state, and the movable arm 16 is provided with a mounting portion for mounting the safety support 6.

As an embodiment, as shown in fig. 1, 5 and 6, the mounting portion includes a mounting plate 17 disposed in the middle of the movable arm 16 and a clamping plate 18 disposed in the front of the movable arm 16, the mounting plate 17 is provided with a first pin hole, the safety support 6 includes a bar-shaped housing having a bar-shaped opening and a connecting plate 21 disposed at a first end of the bar-shaped housing, the first end is provided with a jack for the mounting plate 17 to be inserted into, the connecting plate 21 is provided with a second pin hole corresponding to the first pin hole of the mounting plate 17 to be inserted into the jack, the first end and the mounting plate 17 are connected by a pin 19 inserted into the first pin hole and the second pin hole, and the clamping plate 18 is clamped in the opening of the second end of the bar-shaped housing. Optionally, the cross section of the strip-shaped shell is U-shaped; the connecting plates 21 are arranged in a pair, the pair of connecting plates 21 are arranged oppositely, and the pair of connecting plates 21 are respectively provided with the second pin holes. As shown in fig. 1 and 6, when the safety support 6 does not need to support the telescopic rod, the safety support 6 is mounted on the mounting portion, the clamping plate 18 is clamped in the opening of the second end of the safety support 6, the mounting plate 17 is inserted into the insertion hole of the first end of the safety support 6, and then the plug pins 19 are inserted into the first pin hole and the two second pin holes to fix the safety support 6 on the movable arm 16, so that the problem that the safety support 6 is inconvenient to mount due to the downward bending of the movable arm 16 is solved. When the safety support 6 needs to be used, the safety support 6 is wrapped on the outer side of the telescopic rod extending out of the lifting oil cylinder 4, the plug pins 19 are inserted into the pair of second pin holes to prevent the safety support 6 from being separated from the telescopic rod, the top end of the safety support 6 is abutted to the movable arm 16, and the bottom end of the safety support 6 is abutted to the cylinder barrel of the lifting oil cylinder 4. The design avoids the condition that the telescopic rod drives the movable arm to retract under the abnormal state, and the reliability is improved.

In one embodiment, the front and rear portions of the boom 16 are respectively provided with an opening for passing the hydraulic line 12 therethrough, and the hydraulic line 12 passes through the opening from the inside of the cavity of the boom 16. The hydraulic line 12 may enter the cavity of the boom 16 through an opening in the rear of the boom 16 to the front of the boom 16 and extend out of the cavity of the boom 16 from an opening in the front of the boom 16 to facilitate connection with a cylinder in the front. Due to the design, the hydraulic pipeline 12 can be well protected, the hydraulic pipeline 12 is prevented from being installed outside the movable arm 16, a gap between the hydraulic pipeline 12 and the cab 5 is small, and scraping is prone to occur.

In one embodiment, as shown in fig. 2, a pipe clamp 13 for fixing the hydraulic line 12 is provided at an opening of a rear portion of the boom 16 to facilitate fixing of the hydraulic line 12.

In one embodiment, as shown in fig. 4, a fixing plate 20 for fixing the hydraulic joint 14 is provided at an opening of a front portion of the boom 16 to facilitate installation.

As an embodiment, as shown in fig. 1 to 4 and 6, a handrail 15 is provided at a front portion of the boom 16, and the handrail 15 is provided near the hydraulic joint 14. The design can ensure that the handrail 15 can be used as the handrail 15 and can also play a role of anti-collision protection for the hydraulic joint 14, thereby avoiding the hydraulic joint 14 from being easily damaged.

As an embodiment, as shown in fig. 2, 3 and 5, the working device includes a pair of the booms 16 provided on both left and right sides of the cab 5, and rear ends of the pair of the booms 16 are connected by a connecting rod 8. The design of the connecting rod 8 can improve the rigidity of the movable arm 16, so that the structure of the movable arm 16 is more stable.

As an embodiment, as shown in fig. 1, 2 and 6, the working device includes a first rocker 1 and a second rocker 2, one end of the first rocker 1 and one end of the second rocker 2 are respectively hinged to the movable arm 16, and the other end of the first rocker 1 and the other end of the second rocker 2 are respectively hinged to the frame structure 3. As shown in fig. 1, a hinge point of the first rocker 1 and the movable arm 16 is a point a, and a hinge point of the first rocker 1 and the frame structure 3 is a point H; the hinge point of the second rocker 2 and the movable arm 16 is point E, and the hinge point of the second rocker 2 and the frame structure 3 is point F.

In one embodiment, as shown in fig. 1, the boom 16 is inclined downward from the rear of the cab 5 to the front of the cab 5 when located in the traveling position.

The utility model discloses the second aspect provides a skid-steer loader, as shown in fig. 1, skid-steer loader include frame construction 3, set up in driver's cabin 5 on the frame construction 3 and as above skid-steer loader's equipment.

The working device can improve the side view of a driver, optimizes the hinge point position of the lifting oil cylinder 4 and the movable arm 16, ensures the unloading height of a machine, well protects the hydraulic pipeline 12 and the hydraulic joint 14 by the installation form that the hydraulic pipeline 12 on the working device passes through the cavity of the movable arm 16, strengthens the movable arm 16 by the connecting rod 8, and solves the problem of inconvenient installation of the safety support caused by downward bending of the movable arm 16.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the details of the above embodiments, and the technical concept of the present invention can be within the scope of the present invention to perform various simple modifications to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention. For example, the drive mechanism may also be a pneumatic cylinder.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims

1. The working device of the skid steer loader is used for being arranged on a frame structure (3) of the skid steer loader and located on the side face of a cab (5) of the skid steer loader, and is characterized in that the working device comprises a movable arm (16), the movable arm (16) comprises an avoidance section (10), when the movable arm (16) is located at a driving position, the avoidance section (10) is located in an area, close to a side window of the cab, of the movable arm (16), and the top of the avoidance section (10) is arranged in a concave mode towards the bottom of the frame structure (3) of the skid steer loader.

2. The working device of a skid steer loader according to claim 1, wherein the boom (16) further comprises a first section (9) and a second section (11), the first section (9), the avoidance section (10), and the second section (11) being arranged in sequence along a length direction of the boom (16).

3. The working device of a skid steer loader according to claim 2, wherein the top surface of the avoidance segment (10) is an arc-shaped surface; and/or the top surface of the first section (9) is planar.

4. The working device of a skid steer loader according to claim 2, wherein when the boom (16) is in a travel position, a rear end of the avoidance section (10) extends to a rear end of the cab (5), and a front end of the avoidance section (10) extends to a front of a driver seat of the cab (5).

5. The working device of a skid steer loader according to claim 4, wherein when the boom (16) is located at a driving position, a reference length is set to 1, a driver seat index point is a G point, a horizontal distance L1 between a K point at a rear end point of the first section (9) and the G point satisfies 0.8 ≦ L1 ≦ 1.2, and a vertical distance L2 between the K point and the G point satisfies 0.611 ≦ L2 ≦ 0.916; the horizontal distance L3 between the rear end point B of the avoidance section (10) and the point G meets the condition that the L3 is more than or equal to 0.472 and less than or equal to 0.709, and the vertical distance L4 between the point B and the point G meets the condition that the L4 is more than or equal to 0.374 and less than or equal to 0.562; the horizontal distance L5 between the G point and the front end point C point of the avoidance section (10) satisfies 0.146-0.219 of L5, and the vertical distance L6 between the G point and the C point satisfies 0.09-0.136 of L6.

6. The work arrangement of a skid steer loader of claim 1, wherein the work arrangement includes a drive mechanism for driving the boom (16) between a travel position and a lift position.

7. The working device of the skid steer loader of claim 6, wherein the driving mechanism comprises a lift cylinder (4), a cylinder of the lift cylinder (4) is fixedly arranged on the frame structure (3), and a telescopic rod of the lift cylinder (4) extends into a cavity of the movable arm (16) and is hinged with the movable arm (16).

8. The working device of the skid steer loader of claim 7, wherein the working device comprises a safety support (6) for wrapping outside the extended telescopic rod to prevent the telescopic rod from retracting in an abnormal state, and the movable arm (16) is provided with a mounting portion for mounting the safety support (6).

9. The work arrangement of a skid steer loader of claim 8, wherein the mounting portion comprises a mounting plate (17) disposed at a middle portion of the boom (16) and a catch plate (18) disposed at a front portion of the boom (16), the mounting plate (17) is provided with a first pin hole, the safety support piece (6) comprises a strip-shaped shell with a strip-shaped opening and a connecting plate (21) arranged at the first end of the strip-shaped shell, the first end is provided with a jack for inserting the mounting plate (17), the connecting plate (21) is provided with a second pin hole corresponding to the first pin hole on the mounting plate (17) inserted in the jack, the first end and the mounting plate (17) are connected through a bolt (19) inserted into the first pin hole and the second pin hole, the clamping plate (18) is clamped in the opening at the second end of the strip-shaped shell.

10. The working device of a skid steer loader according to claim 1, wherein the front and rear portions of the boom (16) are respectively provided with an opening for passing a hydraulic line (12), the hydraulic line (12) passing through the opening from inside a cavity of the boom (16).

11. The working device of the skid steer loader according to claim 10, wherein a pipe clamp (13) for fixing the hydraulic line (12) is provided at an opening hole at a rear portion of the movable arm (16); and/or a fixing plate (20) for fixing the hydraulic joint (14) is arranged at an opening at the front part of the movable arm (16).

12. The working device of a skid steer loader according to claim 1, wherein the working device comprises a pair of the booms (16) provided on both left and right sides of the cab (5), and rear ends of the pair of the booms (16) are connected by a connecting rod (8).

13. The working device of a skid steer loader according to any of claims 1-12, wherein the working device comprises a first rocker (1) and a second rocker (2), one end of the first rocker (1) and one end of the second rocker (2) are respectively hinged to the movable arm (16), and the other end of the first rocker (1) and the other end of the second rocker (2) are respectively hinged to the frame structure (3).

14. A skid steer loader, characterized in that it comprises a frame structure (3), a cab (5) arranged on said frame structure (3) and the working device of the skid steer loader of any of claims 1-13.