A skid loader

Abstract

The utility model relates to the technical field of engineering machinery, concretely relates to a skid loader, including the organism, the both sides of organism are provided with the lifting arm through the hinge structure mode respectively, the lifting arm is connected with the lifting board assembly through the hinge structure mode, and the lifting board assembly is connected with the accessory, and the organism of one side of lifting arm is provided with the disturbing arm, and the disturbing arm is connected with the organism through the hinge structure mode, be provided with the mounting bracket between two lifting arms, and the lower part of mounting bracket is connected with the front end of disturbing arm through the hinge structure mode, the mounting bracket is connected with the middle part of connecting arm through the hinge structure mode, and the outer end of connecting arm is connected with the lifting board assembly, one end of oil cylinder A is connected with the upper part of mounting bracket through the hinge structure mode, the other end of oil cylinder A is connected with the one end of connecting arm away from the lifting board assembly through the hinge structure mode, and the both ends of oil cylinder A are connected with mounting bracket and connecting arm through the hinge structure mode respectively, and the whole force of oil cylinder A is more symmetrical, and the force distribution of cylinder body and piston rod is even, and it is not easy to produce the eccentric load or the bending.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically to a skid steer loader. Background Technology

[0002] Skid steer loaders, also known as skid steer loaders, multi-purpose engineering vehicles, or multi-purpose engineering machines, are wheeled specialized chassis equipment that achieves vehicle steering by utilizing the difference in linear speed between the wheels on both sides. They are mainly used in situations where the work site is confined, the ground is uneven, and the work content changes frequently.

[0003] The invention patent application with application number CN202010757226.1—a skid steer loader—comprises: a frame including a chassis and a load-bearing portion mounted on the chassis; a cab mounted on the chassis and located in front of the load-bearing portion; a boom including a front end located in front of the cab and a rear end located at the rear of the frame; a rear linkage including a first end hinged to the load-bearing portion and a second end hinged to the boom; a front linkage including a first end hinged to the load-bearing portion and a second end hinged to the boom; and a hydraulic cylinder including a first end hinged to the load-bearing portion and a second end hinged to the boom for driving the front end of the boom to switch between a low position and a high position, wherein the load-bearing portion is located below or to the side of the rear window of the cab.

[0004] The above-mentioned patents require operators to frequently adjust the bucket posture during loading and unloading to prevent materials from spilling out of the bucket, which increases labor intensity and reduces work efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a skid steer loader, the technical solution of which is as follows: A skid steer loader, characterized in that it comprises: The fuselage has lifting arms on both sides via a hinged structure. The lifting platform assembly is connected to the lifting arm via a hinged structure, and attachments are connected to the lifting platform assembly. The swerve arm is located on one side of the lifting arm and is connected to the body via a hinge structure. The mounting bracket is located between the two lifting arms, and the lower part of the mounting bracket is connected to the front end of the boom via a hinge structure. The connecting arm is connected to the mounting frame in a hinged manner in the middle, and the outer end of the connecting arm is connected to the lifting plate assembly. Hydraulic cylinder A, one end of which is hinged to the upper part of the mounting bracket, and the other end of which is hinged to the end of the connecting arm away from the lifting plate assembly; Hydraulic cylinder B has one end hinged to the machine body and the other end hinged to the lifting arm.

[0006] Furthermore, crossbeams are installed at the front ends of the two lifting arms via a fixed structure.

[0007] Furthermore, adjustment plates are fixedly installed on both sides of the lifting arm, and the adjustment plates have at least two pin holes, in which pins are inserted and removed. Hydraulic cylinder B is connected to the adjusting plate via a pin.

[0008] Furthermore, the lifting platform assembly includes a mounting plate, and a hinge seat is fixedly provided on the inner side of the mounting plate. The hinge seat is connected to the lifting arm by a hinge.

[0009] Furthermore, the connecting arm and the mounting plate are connected by a fixed structure; The attachment is a bucket, with an L-shaped plate fixedly installed on the inner side of the bucket. An inclined hanging plate is fixedly installed on the upper part of the L-shaped plate. The inclined hanging plate is hooked on the upper part of the mounting plate. Baffles are fixedly installed on the L-shaped plates on both sides of the inclined hanging plate. The baffles, L-shaped plates and inclined hanging plates form a cavity for placing the mounting plate. Furthermore, the mounting plates on both sides of the connecting arm are fixedly provided with fixing blocks A and B. Fixing blocks A, B, and the horizontal section of the L-shaped plate are all provided with pin holes, and L-shaped positioning pins are inserted into the pin holes.

[0010] Furthermore, the fixing block B is arranged in a right-angled trapezoidal shape, and the pin hole is opened on the inclined surface of the fixing block B; The vertical section of the L-shaped positioning pin is fixed with a stop block, and the lower end face of the stop block is provided with an inclined surface that matches the inclined surface of the fixing block B.

[0011] Furthermore, a protective plate for the hydraulic cylinder A is fixedly installed on the outer end face of the mounting bracket.

[0012] The beneficial effects of this utility model are as follows: by forming a four-bar linkage structure with the body, lifting arm, chock arm, lifting plate assembly and mounting frame, the working device is kept in a horizontal state during the upgrading process, and the materials will not tilt or spill during loading, unloading and transportation, thereby reducing the difficulty of operation and improving work efficiency.

[0013] The two ends of the hydraulic cylinder A are hinged to the mounting bracket and the connecting arm, respectively. The overall force of the hydraulic cylinder is relatively symmetrical, and the force distribution of the cylinder body and piston rod is uniform, making it less prone to uneven load or bending.

[0014] Adjustment plates are installed on both sides of the lifting arm, and the connection position between the hydraulic cylinder support and the connecting plate is adjusted by the pin to adapt to different working scenarios and improve practicality.

[0015] By setting an L-shaped plate and an inclined hanging plate on one side of the bucket, and locking the bucket and the lifting plate assembly together with an L-shaped locating pin, installation and replacement are convenient and disassembly efficiency is improved. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the four-bar linkage structure of the body, lifting arm, sway arm, lifting plate assembly and mounting frame of this utility model; Figure 3 This is a schematic diagram of the attachment connection structure of this utility model; Figure 4 This is an exploded structural diagram of the attachments and lifting plate assembly of this utility model; In the picture: 1. Body, 2. Lifting arm, 3. Lifting plate assembly, 31. Mounting plate, 32. Hinge seat, 4. Attachment, 5. Hinge arm, 6. Mounting bracket, 7. Connecting arm, 8. Hydraulic cylinder A, 9. Hydraulic cylinder B, 10. Crossbeam, 11. Adjusting plate, 12. Pin, 13. L-shaped plate, 14. Inclined hanging plate, 15. Baffle, 16. Fixing block A, 17. Fixing block B, 18. L-shaped positioning pin, 19. Stop block, 20. Guard plate. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the utility model will now be described in further detail with reference to the accompanying drawings and the following embodiments, so that the public can better understand the implementation method of this utility model. The specific implementation scheme of this utility model is as follows: A skid steer loader includes a body 1, with lifting arms 2 hinged to both sides of the body 1. The lifting arms 2 are connected to a lift plate assembly 3 via hinges, and attachments 4 are connected to the lift plate assembly 3. A spoiler arm 5 is mounted on one side of the body 1, and the spoiler arm 5 is hinged to the body 1. A mounting frame 6 is provided between the two lifting arms 2, with its lower part hinged to the front end of the spoiler arm 5. The mounting frame 6 is hinged to the middle of a connecting arm 7, and the outer end of the connecting arm 7 is connected to the lift plate assembly 3. The loader is constructed via the body 1... The lifting arm 2, the sway arm 5, the lifting plate assembly 3, and the mounting frame 6 form a four-bar linkage, ensuring that the working device remains horizontal during the upgrading process. This prevents materials from tilting and spilling during loading, unloading, and transportation, reducing operational difficulty and improving work efficiency. One end of the hydraulic cylinder A8 is hinged to the upper part of the mounting frame 6, and the other end of the hydraulic cylinder A8 is hinged to the end of the connecting arm 7 away from the lifting plate assembly 3. Both ends of the hydraulic cylinder A8 are hinged to the mounting frame 6 and the connecting arm 7, respectively. The hydraulic cylinder A8 is subjected to relatively symmetrical forces, and the cylinder body and piston rod are evenly distributed, making it less prone to uneven loading or bending.

[0018] One end of the hydraulic cylinder B9 is hinged to the machine body 1, and the other end of the hydraulic cylinder B9 is hinged to the lifting arm 2.

[0019] Specifically, the hinge points of the four-bar linkage are as follows: the hinge point between the lifting arm 2 and the lifting plate assembly 3 is pivot B; the hinge point between the sway arm 5 and the mounting frame 6 is pivot A; the radial line connecting pivot A and pivot B is always on a vertical line; the hinge point between the connecting arm 7 and the mounting frame 6 is pivot D; the axis of pivot D and the axis of pivot B are the same axis; the line connecting the hinge points of the lifting arm 2, sway arm 5 and the body 1 is parallel to the line connecting pivot A and pivot D; the lifting arm 2 and sway arm 5 are parallel, thus ensuring that the lifting plate assembly 3 is always in a parallel state during the lifting process.

[0020] It should be noted that, in order to improve structural stability, the front ends of the two lifting arms 2 are equipped with crossbeams 10 through a fixed structure.

[0021] It should be noted that adjusting plates 11 are fixedly installed on both sides of the lifting arm 2. Each adjusting plate 11 has at least two pin holes along the extension direction of the lifting arm 2, and pins 12 are inserted into these pin holes. The hydraulic cylinder B9 is connected to the adjusting plate 11 via the pins 12. The connection position between the hydraulic cylinder B9 and the adjusting plate is adjusted using the pins 12 to suit different working scenarios and improve practicality. For example, when loading or unloading materials at a higher position, the connection point between the hydraulic cylinder B9 and the adjusting plate 11 can be moved to a pin hole closer to the hinge point of the machine body 1 to increase the initial height of the bucket.

[0022] Specifically, the lifting plate assembly 3 includes a mounting plate 31, and a hinge seat 32 is fixedly provided on the inner side of the mounting plate 31. The hinge seat 32 is connected to the lifting arm 2 by a hinge. The connecting arm 7 is connected to the mounting plate 31 by a fixed structure. It should be noted that the connecting arm 7 and the two hinge seats 32 together form a hinged flipping structure for the attachment.

[0023] In this embodiment, the attachment 4 is a bucket. An L-shaped plate 13 is fixedly installed on the inner side of the bucket. An inclined hanging plate 14 is fixedly installed on the upper part of the L-shaped plate 13. The inclined hanging plate 14 is hooked on the mounting plate 31. Baffles 15 are fixedly installed on the L-shaped plates 13 on both sides of the inclined hanging plate 14. The baffles 15, the L-shaped plates 13 and the inclined hanging plate 14 enclose a cavity for placing the mounting plate 31, which limits the mounting plate 31 and thus ensures that the bucket and the lifting plate assembly 3 are stably connected.

[0024] Furthermore, the mounting plates 31 on both sides of the connecting arm 7 are fixedly equipped with fixing blocks A16 and B17. Fixing blocks A16, B17, and the horizontal section of the L-shaped plate 13 are all provided with pin holes. L-shaped positioning pins 18 are inserted into the pin holes. The L-shaped positioning pins 18 are used to lock the bucket 4 and the lifting plate assembly 3 together, which facilitates installation and replacement and improves disassembly efficiency.

[0025] The fixing block B17 is set in a right-angled trapezoid, and the pin hole is opened on the inclined surface of the fixing block B17. The vertical section of the L-shaped positioning pin 18 is fitted with a stop block 19. The stop block 19 is connected to a positioning screw along the radial thread. The positioning screw can extend into the inside of the stop block 19 and abut against the vertical section of the L-shaped positioning pin 18 to complete the locking action, controlling the lower part of the L-shaped positioning pin to protrude beyond the outer dimension of the L-shaped plate 13, and preventing it from extending too far. The lower end face of the stop block 19 is provided with an inclined surface that matches the inclined surface of the fixing block B17. By using the cooperation of the two inclined surfaces, it is ensured that the upper horizontal section of the L-shaped positioning pin 18 is parallel to the bucket, preventing it from contacting the surrounding parts when pulled out.

[0026] To protect the hydraulic cylinder A8, a protective plate 20 is fixedly installed on the outer end face of the mounting bracket 6.

[0027] The working principle and process of this utility model are as follows: When the bucket 4 needs to be lifted, the hydraulic cylinder B9 drives the lifting arm 2 to rotate around the hinge point with the machine body 1. At this time, the boom 5, lifting arm 2, lifting plate assembly 3, and mounting frame 6 rotate through the four-bar linkage, ensuring that the angle between the bucket 4 and the horizontal plane does not change as it rises until it reaches the predetermined position and stops. Then, the hydraulic cylinder A8 is activated to retract, and the hydraulic cylinder A8 drives the connecting arm 7 to rotate around the hinge point with the mounting frame 6, causing the bucket 4 and the hinge seat 32 to rotate around the hinge point with the lifting arm 2, thus performing the tipping and unloading operation.

[0028] In the description of this utility model, it should be understood that the terms "center," "upper," "lower," "left," "right," "front," "rear," "lower left," "upper right," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Although this utility model has been described according to a limited number of embodiments, those skilled in the art should understand from the above description that other embodiments can be conceived within the scope of this utility model described herein.

Claims

1. A skid steer loader, characterized in that, include: The body (1) has lifting arms (2) on both sides of the body (1) via a hinged structure. The lifting plate assembly (3) is connected to the lifting arm (2) by a hinge structure, and the lifting plate assembly (3) is connected to the attachment (4). The sway arm (5) is located on the body (1) on one side of the lifting arm (2) and is connected to the body (1) by a hinge structure. Mounting bracket (6) is set between the two lifting arms (2), and the lower part of the mounting bracket (6) is connected to the front end of the boom (5) by a hinge structure. The connecting arm (7) is connected to the mounting frame (6) in a hinged structure in the middle, and the outer end of the connecting arm (7) is connected to the lifting plate assembly (3); Hydraulic cylinder A (8) has one end hinged to the upper part of the mounting bracket (6) and the other end hinged to the end of the connecting arm (7) away from the lifting plate assembly (3). Oil cylinder B (9) is hinged to the machine body (1) at one end and to the lifting arm (2) at the other end.

2. A skid steer loader according to claim 1, characterized in that: The front ends of the two lifting arms (2) are equipped with crossbeams (10) through a fixed structure.

3. A skid steer loader according to claim 1, characterized in that: The lifting arm (2) has an adjustment plate (11) on both sides in a fixed structure. The adjustment plate (11) has at least two pin holes, and a pin (12) is installed in the pin hole in a plug-in manner. The hydraulic cylinder B (9) is connected to the adjusting plate (11) via a pin (12).

4. A skid steer loader according to claim 1, characterized in that: The lifting plate assembly (3) includes a mounting plate (31), and a hinge seat (32) is fixedly provided on the inner side of the mounting plate (31). The hinge seat (32) is connected to the lifting arm (2) by a hinge.

5. A skid steer loader according to claim 4, characterized in that: The connecting arm (7) is connected to the mounting plate (31) by a fixed structure; The attachment (4) is a bucket. An L-shaped plate (13) is fixedly installed on the inner side of the bucket. An inclined hanging plate (14) is fixedly installed on the upper part of the L-shaped plate (13). The inclined hanging plate (14) is hooked on the upper end of the mounting plate (31). Baffles (15) are fixedly installed on the L-shaped plates (13) on both sides of the inclined hanging plate (14). The baffles (15), the L-shaped plates (13) and the inclined hanging plate (14) enclose a cavity for placing the mounting plate (31).

6. A skid steer loader according to claim 5, characterized in that: The mounting plates (31) on both sides of the connecting arm (7) are fixedly equipped with fixing blocks A (16) and B (17). Pin holes are opened in the horizontal section of fixing blocks A (16), B (17) and L-shaped plate (13), and L-shaped positioning pins (18) are inserted into the pin holes.

7. A skid steer loader according to claim 6, characterized in that: The fixing block B (17) is set in a right trapezoidal shape, and the pin hole is opened on the inclined surface of the fixing block B (17); The vertical section of the L-shaped positioning pin (18) is fixed with a stop (19), and the lower end face of the stop (19) is provided with an inclined surface that matches the inclined surface of the fixing block B (17).

8. A skid steer loader according to claim 1, characterized in that: The mounting bracket (6) has a protective plate (20) fixedly installed on its outer end face to protect the oil cylinder A (8).

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