A wheel loader

Abstract

The present invention relates to the field of loaders, and in particular to a wheel loader, comprising a loader body and a bucket connected to the loader body, wherein extension seats extend from the rear edges of both sides of the bucket, bucket shafts are rotatably mounted on the upper ends of the two extension seats, bucket frames are fixedly mounted on the outer surfaces of the two bucket shafts, and guide buckets are fixedly mounted on the ends of the two bucket frames, and the two guide buckets are symmetrically arranged, the guide buckets are located in front of the bucket, a wheel seat is elastically mounted on the lower end of the extension seat, a roller is mounted inside the wheel seat, and a connecting shaft is provided above the extension seat, the connecting shaft being rotatably connected to the bucket. The present invention improves loading efficiency and can automatically retract the guide bucket when shoveling materials, so that the bucket will not be obstructed by the guide bucket when shoveling materials, while ensuring that the guide bucket will not shift during the material dropping process.

Description

Technical Field

[0001] The present invention relates to the field of loaders, in particular to a wheel loader. Background Art

[0002] A wheel loader is an engineering machine based on a tire-mounted chassis equipped with a liftable and tiltable bucket. It is used to load bulk materials such as sand, gravel, soil, and coal. Its core function is to load materials by lifting and tilting the bucket. Due to their high maneuverability, wheel loaders are widely used in various fields.

[0003] However, when an existing wheel loader is loading a small material truck, since the truck bucket is smaller than the wheel loader bucket, most of the falling materials will spill from both sides of the bucket when the bucket is tilted down for loading, resulting in the material shoveled into the bucket not being fully loaded into the truck bucket, seriously affecting the loading efficiency. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a wheel loader.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is: a wheel loader, comprising a loader body and a bucket connected to the loader body, wherein an extension seat is extended at the rear edge of both sides of the bucket, and bucket shafts are rotatably mounted on the upper ends of the two extension seats, bucket frames are fixedly mounted on the outer surfaces of the two bucket shafts, and buckets are fixedly mounted on the ends of the two bucket frames, and the two buckets are symmetrically arranged. The buckets are located in front of the bucket, a wheel seat is elastically mounted on the lower end of the extension seat, a roller is mounted inside the wheel seat, a connecting shaft is provided above the extension seat, the connecting shaft is rotatably connected to the bucket, the ends of the connecting shaft and the ends of the bucket shaft are coaxially inlaid with bevel gears, the two bevel gears are meshed, and the outer surface of the connecting shaft is coaxially inlaid with a bucket control gear, the front end of the wheel seat is connected to a slotted frame, the end of the slotted frame is fixedly mounted with a bucket control tooth plate, the bucket control tooth plate corresponds to the bucket control gear, and a bracket piece is provided at the end of the extension seat.

[0006] Preferably, a fixing frame is fixedly installed at the front end of the wheel seat, the end of the fixing frame is fixed to the slotted frame, two guide sleeves are symmetrically fixedly installed at the upper end of the wheel seat, and two guide rods are symmetrically fixedly installed at the lower end of the extension seat, and the guide sleeves are slidably installed on the outer surface of the guide rod.

[0007] Preferably, a bucket spring is wound around the outer side of the guide sleeve and the guide rod, the upper end of the bucket spring is fixed to the lower end of the extension seat, and the lower end of the bucket spring is fixed to the upper end of the wheel seat.

[0008] Preferably, the bracket member includes an empty shell fixedly mounted on the end of the protruding seat, a limit plate is slidably mounted inside the empty shell, an arc-shaped bracket extends from the middle of the upper end of the limit plate, the arc-shaped bracket passes through the upper end of the empty shell, the arc-shaped bracket slides with the empty shell, and the arc-shaped bracket passes through the lower end of the bucket frame.

[0009] Preferably, a supporting groove is provided at the lower end of the bucket frame, the arc-shaped supporting block extends into the interior of the supporting groove, the vertical surface of the arc-shaped supporting block is against the inner side surface of the supporting groove, a prism extends from the middle part of the lower end of the limiting plate, the prism passes through the lower end of the empty shell, the prism and the empty shell are slidably fitted, the lower end of the empty shell is obliquely connected to a flap, one end of the flap is rotatably mounted with a synchronous frame, and the end of the synchronous frame is connected to the prism.

[0010] Preferably, a lower pin shaft is rotatably installed through the lower part of the slotted frame, and a plate support frame is obliquely extended from the outer surface of the lower pin shaft. The plate support frame is elastically connected to the slotted frame, and the end of the plate support frame is located below the other end of the flap.

[0011] Preferably, a lock pin spring is wound around the outer side of the prism, the upper end of the lock pin spring is fixed to the lower end of the limit plate, the lower end of the lock pin spring is fixed to the inner bottom surface of the empty shell, a column seat is extended from the lower end of the prism, the end of the synchronization frame is rotatably installed inside the column seat, two L-shaped frames are symmetrically fixedly installed on the lower end of the empty shell, and the middle part of the flap is rotatably installed between the ends of the two L-shaped frames.

[0012] Preferably, two upper pin shafts are symmetrically and rotatably installed on the upper inner part of the slotted frame, a sliding sleeve is embedded between the opposite ends of the two upper pin shafts, a cap seat is extended from the upper end of the support plate frame, a connecting cap is rotatably installed inside the cap seat, a frame rod is extended from the middle part of the connecting cap, the sliding sleeve is slidably installed on the outer surface of the frame rod, a fixed frame cap is coaxially embedded on the end of the frame rod, the fixed frame cap fits the upper end of the sliding sleeve, a push-up spring is wound around the outer side of the frame rod, one end of the push-up spring is fixed to the lower end of the sliding sleeve, and the other end of the push-up spring is fixed to the connecting cap.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the bucket flips down to load the material into the truck bucket which is smaller than the bucket, the guide buckets on both sides will guide the falling material so that the material falls between the guide buckets on both sides, thereby changing the width of the material when it falls, so that the material can fall fully into the truck bucket to avoid spilling the material, thereby improving the loading efficiency.

[0015] 2. When the loader body is controlling the bucket to be horizontally attached to the ground for shoveling materials, the ground will push the roller to move the slotting frame upward, thereby driving the bucket control tooth plate to move upward. At the same time, the plate frame on the slotting frame will move upward synchronously to contact the flap and push the flap to flip up, thereby driving the synchronous frame to move the prism downward, allowing the arc-shaped block to leave the slot. At this time, the bucket control tooth plate just contacts and engages with the bucket control gear, and then the slotting frame continues to move upward. At this time, the bucket control tooth plate will drive the bucket control gear to rotate, and then drive the bucket frame on the bucket shaft to rotate through the bevel gear, causing the two guide buckets to rotate to both sides. During this process, the plate frame continues to push the flap The jacking action is to push the bucket up and flip it over. When the groove on the bucket frame rotates away from the top of the arc-shaped block, the plate frame is just separated from the flap. At this time, the arc-shaped block and the flap are reset under the action of the locking pin spring. Then the slotted frame continues to move up to increase the rotation angle of the guide bucket, so that the guide bucket is rotated to the side and rear of the bucket, that is, the guide bucket can be automatically retracted, so that the bucket will not be hindered by the guide bucket when shoveling. When the shoveling is completed and the bucket is raised, the bucket spring will restore its deformation to drive the bucket control tooth plate to move down and reset, and then drive the guide bucket to reset. At this time, the arc-shaped block will re-extend into the groove and press against the inner wall of the groove to position the bucket frame to ensure that the guide bucket will not shift during the blanking process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a structural schematic diagram of a wheel loader according to the present invention;

[0017] Figure 2 This is a schematic diagram of a bucket of a wheel loader according to the present invention;

[0018] Figure 3 This is a schematic diagram of a bucket frame of a wheel loader according to the present invention;

[0019] Figure 4 A wheel loader of the present invention Figure 3 A magnified view of middle A;

[0020] Figure 5 This is a schematic diagram of a dump bucket spring of a wheel loader according to the present invention;

[0021] Figure 6 This is a cross-sectional view of an empty shell of a wheel loader according to the present invention;

[0022] Figure 7 This is a schematic diagram of a slotted frame of a wheel loader according to the present invention;

[0023] Figure 8 This is a schematic diagram of an empty shell of a wheel loader according to the present invention;

[0024] Figure 9 This is a connection view of a wheel loader abutment frame according to the present invention.

[0025] In the figure: 1. loader body; 2. bucket; 3. guide bucket; 4. bucket frame; 5. bucket control tooth plate; 6. connecting shaft; 7. bucket control gear; 8. bucket shaft; 9. bevel gear; 10. extension seat; 11. empty shell; 12. slotted frame; 13. fixed frame; 14. wheel seat; 15. roller; 16. guide sleeve; 17. guide rod; 18. tipping bucket spring; 19. lock pin spring; 20. prism; 21. column connector; 22. synchronous frame; 23. limit plate; 24. arc-shaped block; 25. groove; 26. L-shaped frame; 27. sliding sleeve; 28. flap; 29. ​​plate frame; 30. upper pin; 31. lower pin; 32. fixed frame cap; 33. frame rod; 34. push frame spring; 35. connecting cap; 36. cap seat. DETAILED DESCRIPTION

[0026] The following description is intended to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are merely examples, and those skilled in the art may conceive of other obvious variations.

[0027] like Figures 1-9 The wheel loader shown in the figure includes a loader body 1 and a bucket 2 connected to the loader body 1, and an extension seat 10 is extended at the rear edge of both sides of the bucket 2. The upper ends of the two extension seats 10 are rotatably mounted with bucket shafts 8, and the extension seats 10 serve as a connection. The outer surfaces of the two bucket shafts 8 are fixedly mounted with bucket frames 4, and the bucket shafts 8 serve to rotate the bucket frames 4. The ends of the two bucket frames 4 are fixedly mounted with guide buckets 3, and the bucket frames 4 serve to carry the guide buckets 3. The two guide buckets 3 are symmetrically arranged, and the guide buckets 3 are located in front of the bucket 2. The guide buckets 3 will guide the falling materials so that the materials fall between the guide buckets 3 on both sides to change the width of the materials when they fall, so that the materials can fully fall into the vehicle bucket to avoid spilling the materials, thereby improving the loading efficiency. The lower end of the extension seat 10 is elastically mounted with a wheel seat 14, and the interior of the wheel seat 14 is mounted with rollers 15, and the wheel seat 14 serves to support the rollers 15 The bucket gear 7 is connected to the bucket frame 4 on the bucket shaft 8 and the bucket tooth plate 5 is connected to the bucket frame 4 on the bucket shaft 8 so that the two buckets 3 can rotate to the sides.

[0028] The front end of the wheel seat 14 is fixedly installed with a fixing frame 13, and the end of the fixing frame 13 is fixed to the slotted frame 12. The fixing frame 13 serves to fix the slotted frame 12 and the wheel seat 14 together. Two guide sleeves 16 are symmetrically fixedly installed on the upper end of the wheel seat 14, and two guide rods 17 are symmetrically fixedly installed on the lower end of the extension seat 10. The guide sleeves 16 are slidably installed on the outer surface of the guide rods 17. The guide sleeves 16 and the guide rods 17 serve to guide the wheel seat 14.

[0029] A bucket spring 18 is wound around the outside of the guide sleeve 16 and the guide rod 17. The upper end of the bucket spring 18 is fixed to the lower end of the extension seat 10, and the lower end of the bucket spring 18 is fixed to the upper end of the wheel seat 14. The bucket spring 18 can drive the bucket control tooth plate 5 to move downward and reset when recovering its deformation, thereby driving the bucket 3 to reset.

[0030] The support member includes an empty shell 11 fixedly mounted on the end of the protruding seat 10, and a limiting plate 23 is slidably installed inside the empty shell 11. The empty shell 11 serves to allow the limiting plate 23 to slide. An arc-shaped support block 24 extends from the middle part of the upper end of the limiting plate 23. The arc-shaped support block 24 passes through the upper end of the empty shell 11, and the arc-shaped support block 24 slides with the empty shell 11. When the bucket frame 4 rotates in the opposite direction to reset, the bucket frame 4 will use the arc surface of the arc-shaped support block 24 to push the arc-shaped support block 24, so that the arc-shaped support block 24 moves downward, allowing the bucket frame 4 to smoothly reset to the top of the arc-shaped support block 24, and at the same time allow the arc-shaped support block 24 to smoothly extend into the support groove 25, and the arc-shaped support block 24 passes through the lower end of the bucket frame 4.

[0031] A groove 25 is provided at the lower end of the bucket frame 4, and the arc-shaped block 24 extends into the interior of the groove 25. The vertical surface of the arc-shaped block 24 abuts against the inner side of the groove 25, which can lock the bucket 3 so that the bucket 3 will not shift during the blanking process. A prism 20 extends from the middle part of the lower end of the limit plate 23, and the prism 20 passes through the lower end of the empty shell 11. The prism 20 slides with the empty shell 11, and the lower end of the empty shell 11 is obliquely connected to a flap 28. One end of the flap 28 is rotatably installed with a synchronous frame 22. The end of the synchronous frame 22 is connected to the prism 20. The flap 28 flips up to drive the synchronous frame 22 to move to drive the prism 20 downward, allowing the arc-shaped block 24 to disengage from the groove 25.

[0032] A lower pin shaft 31 is rotatably installed passing through the lower part of the slotted frame 12, and a plate support frame 29 is obliquely extended from the outer surface of the lower pin shaft 31. The lower pin shaft 31 serves to support the plate support frame 29. The plate support frame 29 is elastically connected to the slotted frame 12. The end of the plate support frame 29 is located below the other end of the flap 28. The plate support frame 29 on the slotted frame 12 moves upward to contact the flap 28 and push the flap 28 to flip the flap 28 upward.

[0033] A lock pin spring 19 is wound around the outside of the prism 20, and the upper end of the lock pin spring 19 is fixed to the lower end of the limit plate 23. The lock pin spring 19 serves to reset the arc-shaped stop block 24 and the flap 28 after movement. The lower end of the lock pin spring 19 is fixed to the inner bottom surface of the empty shell 11. A column seat 21 is extended from the lower end of the prism 20, and the end of the synchronization frame 22 is rotatably installed inside the column seat 21. The column seat 21 serves to facilitate the connection between the synchronization frame 22 and the prism 20. Two L-shaped frames 26 are symmetrically fixedly installed at the lower end of the empty shell 11. The middle part of the flap 28 is rotatably installed between the ends of the two L-shaped frames 26. The L-shaped frame 26 serves to support the flap 28.

[0034] Two upper pins 30 are symmetrically and rotatably installed on the upper part of the interior of the slotted frame 12. A sliding sleeve 27 is embedded between the opposite ends of the two upper pins 30. The upper pins 30 play the role of supporting the sliding sleeve 27. A cap seat 36 is extended from the upper end of the plate frame 29. A connecting cap 35 is rotatably installed inside the cap seat 36. The cap seat 36 plays the role of connecting the connecting cap 35. A frame rod 33 is extended from the middle of the connecting cap 35. The sliding sleeve 27 is slidably installed on the outer surface of the frame rod 33. The sliding sleeve 27 plays the role of sliding the frame rod 33. The end of the frame rod 33 is coaxially inlaid with a fixed frame cap 32. The fixed frame cap 32 fits the upper end of the sliding sleeve 27. The fixed frame cap 32 can When the cam 28 is released, the spring 34 is released and the cam 28 is released, and the cam 28 is released, so that the cam 28 is released and the cam 28 is released.

[0035] When in use, the loader body 1 controls the bucket 2 to be horizontally attached to the ground to shovel materials. At this time, the ground will push the roller 15, and the bucket spring 18 will shrink and deform to adapt to the movement of the roller 15, so as to use the pushed roller 15 to drive the slotting frame 12 to move up, thereby driving the bucket tooth plate 5 to move up, and at the same time, the plate frame 29 on the slotting frame 12 will move up synchronously to contact the flap 28 and push the flap 28 to flip the flap 28 up, thereby driving the synchronous frame 2 2 movement to drive the prism 20 to move down, so that the arc-shaped block 24 is out of the groove 25. At this time, the bucket control tooth plate 5 just contacts and meshes with the bucket control gear 7, and then the slotted frame 12 continues to move up. At this time, the bucket control tooth plate 5 will drive the bucket control gear 7 to rotate, and then drive the bucket frame 4 on the bucket shaft 8 to rotate through the bevel gear 9, so that the two guide buckets 3 rotate to both sides respectively. In this process, the plate frame 29 continues to push the flap 28 up. When the groove 25 on the bucket frame 4 turns away from the arc When the upper part of the stop block 24 is reached, the stop plate frame 29 is just separated from the flap 28. At this time, the arc-shaped stop block 24 and the flap 28 are reset under the action of the lock pin spring 19. Then the slotted frame 12 continues to move upward to increase the rotation angle of the guide bucket 3, so that the guide bucket 3 is rotated to the side and rear of the bucket 2, that is, the guide bucket 3 is automatically retracted, so that the bucket 2 will not be hindered by the guide bucket 3 when shoveling materials. When the shoveling is completed and the bucket 2 is raised, the bucket spring 18 will restore its deformation to drive the bucket control tooth plate 5 to move downward. The bucket 2 is then turned over and the material is loaded into the bucket 2 which is smaller than the bucket 2. At this time, the buckets 3 on both sides will guide the falling material and make it fall between the buckets 3 on both sides to change the width of the material when it falls, so that the material can fully fall into the bucket to avoid spilling the material, thereby improving the loading efficiency.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions merely illustrate the principles of the present invention. Various changes and modifications may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and modifications are intended to fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A wheel loader comprising a loader body (1) and a bucket (2) connected to the loader body (1), characterized in that: Extension seats (10) are extended from the rear edges of both sides of the bucket (2), bucket shafts (8) are rotatably mounted on the upper ends of the two extension seats (10), bucket frames (4) are fixedly mounted on the outer surfaces of the two bucket shafts (8), and guide buckets (3) are fixedly mounted on the ends of the two bucket frames (4). The two guide buckets (3) are symmetrically arranged, and the guide buckets (3) are located in front of the bucket (2). A wheel seat (14) is elastically mounted on the lower end of the extension seat (10), and a roller (15) is mounted inside the wheel seat (14). The extension seat (10) is A connecting shaft (6) is provided on the top, and the connecting shaft (6) is rotatably connected to the bucket (2). The ends of the connecting shaft (6) and the bucket shaft (8) are coaxially inlaid with bevel gears (9), and the two bevel gears (9) are meshed with each other. The outer surface of the connecting shaft (6) is coaxially inlaid with a bucket control gear (7). The front end of the wheel seat (14) is connected to a slotted frame (12), and a bucket control tooth plate (5) is fixedly installed on the end of the slotted frame (12). The bucket control tooth plate (5) corresponds to the bucket control gear (7), and a support member is provided at the end of the extended seat (10).

2. A wheel loader according to claim 1, characterized in that: A fixing frame (13) is fixedly mounted on the front end of the wheel seat (14), and the end of the fixing frame (13) is fixed to the slotted frame (12). Two guide sleeves (16) are symmetrically fixedly mounted on the upper end of the wheel seat (14), and two guide rods (17) are symmetrically fixedly mounted on the lower end of the extension seat (10). The guide sleeves (16) are slidably mounted on the outer surface of the guide rods (17).

3. A wheel loader according to claim 2, characterized in that: A tipping spring (18) is wound around the outer sides of the guide sleeve (16) and the guide rod (17), the upper end of the tipping spring (18) is fixed to the lower end of the extension seat (10), and the lower end of the tipping spring (18) is fixed to the upper end of the wheel seat (14).

4. The wheel loader according to claim 1, characterized in that: The support member includes an empty shell (11) fixedly mounted on the end of the extended seat (10), a limit plate (23) is slidably mounted inside the empty shell (11), an arc-shaped support block (24) extends from the middle of the upper end of the limit plate (23), the arc-shaped support block (24) passes through the upper end of the empty shell (11), the arc-shaped support block (24) is slidably matched with the empty shell (11), and the arc-shaped support block (24) passes through the lower end of the bucket frame (4).

5. The wheel loader according to claim 4, characterized in that: A supporting groove (25) is provided at the lower end of the bucket frame (4), and the arc-shaped supporting block (24) extends into the interior of the supporting groove (25). The vertical surface of the arc-shaped supporting block (24) is against the inner side surface of the supporting groove (25). A prism (20) extends from the middle of the lower end of the limiting plate (23), and the prism (20) passes through the lower end of the empty shell (11). The prism (20) and the empty shell (11) are slidably matched. The lower end of the empty shell (11) is obliquely connected to a flap (28), and one end of the flap (28) is rotatably mounted with a synchronous frame (22), and the end of the synchronous frame (22) is connected to the prism (20).

6. The wheel loader according to claim 5, characterized in that: A lower pin shaft (31) is rotatably installed through the lower part of the slotted frame (12), and a plate support frame (29) is obliquely extended from the outer surface of the lower pin shaft (31). The plate support frame (29) is elastically connected to the slotted frame (12), and the end of the plate support frame (29) is located below the other end of the flap (28).

7. The wheel loader according to claim 5, characterized in that: A lock pin spring (19) is wound around the outside of the prism (20), the upper end of the lock pin spring (19) is fixed to the lower end of the limit plate (23), and the lower end of the lock pin spring (19) is fixed to the inner bottom surface of the empty shell (11). A column seat (21) extends from the lower end of the prism (20), and the end of the synchronous frame (22) is rotatably mounted inside the column seat (21). Two L-shaped frames (26) are symmetrically fixedly mounted on the lower end of the empty shell (11), and the middle part of the flap (28) is rotatably mounted between the ends of the two L-shaped frames (26).

8. The wheel loader according to claim 6, characterized in that: Two upper pins (30) are symmetrically and rotatably installed on the upper part of the slotted frame (12), and a sliding sleeve (27) is embedded between the opposite ends of the two upper pins (30). A cap seat (36) extends from the upper end of the support frame (29), and a connecting cap (35) is rotatably installed inside the cap seat (36). A frame rod (33) extends from the middle of the connecting cap (35). The sliding sleeve (27) is slidably installed on the outer surface of the frame rod (33), and a fixed frame cap (32) is coaxially embedded at the end of the frame rod (33). The fixed frame cap (32) fits the upper end of the sliding sleeve (27). A push-frame spring (34) is wound around the outer side of the frame rod (33), and one end of the push-frame spring (34) is fixed to the lower end of the sliding sleeve (27), and the other end of the push-frame spring (34) is fixed to the connecting cap (35).

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