Hinge pin for loader bucket

Abstract

The invention relates to the technical field of hinge pins, in particular to a hinge pin for a loader bucket, which comprises a bucket main body, a plurality of hinge pins are mounted on the bucket main body, limiting plates are mounted at two ends of each hinge pin, a connecting frame is movably inserted into the limiting plates, and a fixed blocking cover is fixedly connected onto the connecting frame. A rotating frame is arranged on the connecting frame in a sliding and rotating connection mode, a hinge pin maintenance mechanism is arranged on the rotating frame in a rotating connection mode, the hinge pin maintenance mechanism comprises a brush wheel, and in the using process of the hinge pin, the brush wheel rotates around the connecting position of the hinge pin and the bucket body and meanwhile rotates and swings in a reciprocating mode; compared with the prior art, dirt and sundries at the joint of the hinge pin and the bucket body are more comprehensively and effectively cleaned, accumulated dirt and sundries can be efficiently removed, smooth movement of the hinge pin is guaranteed, manual maintenance cost is reduced through automatic cleaning, and meanwhile the service life of the hinge pin and the service life of the bucket are prolonged.

Description

Technical Field

[0001] The invention relates to the technical field of hinge pins, and in particular to a hinge pin used for a loader bucket. Background Art

[0002] The hinge pin plays a key role in the loader bucket, connecting the bucket to the loader's boom, allowing the bucket to move flexibly under various working conditions. Here are some details about the loader bucket hinge pin: The hitch pin is usually a cylindrical metal rod with holes or grooves at both ends to connect to the bucket and boom. It is designed to withstand the impact and shear forces when the bucket moves. Hikage pins are generally made of high-strength steel or alloy materials to ensure its strength and wear resistance under high load conditions. Some hitch pins may also be heat treated to enhance their performance.

[0003] The hinge pin is used to connect the bucket to the loader's boom, allowing the bucket to swing up and down and left and right. A well-designed hinge pin allows the bucket to rotate 360 ​​degrees during operation to adapt to different work requirements. The hinge pin must be able to withstand the huge forces generated by the bucket during loading and unloading.

[0004] Articulation pins are widely used in loaders in the fields of construction, mining, agriculture, etc., undertaking heavy-duty tasks such as loading, handling and stacking.

[0005] In dusty, humid or muddy working environments, dirt, mud and other materials are easily accumulated between the hinge pin and the bucket connection of existing loader buckets. The hinge pins used in existing loader buckets are not convenient for handling and maintaining the accumulated dirt. The accumulation of dirt will cause the movement of the hinge pin to be obstructed, affecting the operating performance of the bucket. The friction between the dirt and the metal surface may accelerate the wear of the hinge pin and the bucket and shorten their service life. The accumulated dirt may absorb moisture and cause corrosion at the connection.

[0006] In summary, the prior art lacks technology for automatically maintaining and cleaning hinge pins for loader buckets. Summary of the invention

[0007] The purpose of the present invention is to solve the shortcomings of the background technology and to propose a hinge pin for a loader bucket.

[0008] To achieve the above purpose, the technical solution adopted by the present invention is: a hinge pin for a loader bucket, comprising a bucket body, a plurality of hinge pins are installed on the bucket body, and limit plates are installed at both ends of the hinge pin, and the limit plates are fixedly connected to the hinge pin by a plurality of bolts, a plug hole is provided on the limit plate, a positioning rod is threadedly provided on the limit plate, a connecting frame is movably plugged on the limit plate, one end of the connecting frame is slidably matched with the plug hole, and a positioning hole is provided at one end of the connecting frame located in the plug hole, and the positioning hole is movably plugged with one end of the positioning rod. A fixed baffle is fixedly provided on the connecting frame, and a movable baffle is slidingly provided on the inner wall of one end of the fixed baffle close to the hinge pin, a plurality of springs are fixedly provided inside the movable baffle, and the other end of the spring is fixedly provided on the inner wall of the fixed baffle, an annular rack is fixedly provided on the inner wall of the fixed baffle, a toggle ring is fixedly provided outside the movable baffle, a rotating frame is slidingly and rotatably provided on the connecting frame, a transmission mechanism is rotatably provided on the rotating frame, and a hinge pin maintenance mechanism is rotatably provided on the rotating frame, and the hinge pin maintenance mechanism includes a brush wheel.

[0009] Preferably, a pull ring is rotatably connected to one end of the rotating frame, two pull ropes are fixedly connected to the pull ring, the other ends of the pull ropes extend to the inside of the fixed baffle and are fixedly connected to the movable baffle, a motor is fixedly connected to the pull ring, an electric push rod is fixedly connected to one end of the pull ring, the electric push rod is connected and fixedly connected to the fixed baffle, a driving wheel is fixedly connected to the output end of the motor, a gear sleeve is fixedly connected to the rotating frame, and the driving wheel is meshed with the gear sleeve for transmission.

[0010] Preferably, the transmission mechanism comprises a rotating shaft, the rotating shaft is rotatably connected to one end of the rotating frame, one end of the rotating shaft is fixedly connected to a transmission wheel, and the transmission wheel is meshed with an annular rack for transmission.

[0011] Preferably, a reciprocating screw is fixedly connected to the other end of the rotating shaft, a gear A is fixedly connected to the other end of the reciprocating screw, a sliding rod is slidably matched with the reciprocating screw, the sliding rod is slidably matched with the rotating frame, and an adjustment rack is fixedly connected to the sliding rod.

[0012] Preferably, a swing frame is rotatably connected to the brush wheel, one end of the swing frame is rotatably connected to the rotating frame, one end of the swing frame is fixedly connected to an adjusting wheel, and the adjusting wheel is meshed with an adjusting rack for transmission.

[0013] Preferably, a rotating sleeve is provided on the swing frame, one end of the rotating sleeve is connected and fixedly provided with a universal joint, the universal joint is rotatably connected to the rotating frame, one end of the universal joint is connected and fixedly provided with a gear B, the gear B is meshingly transmitted with gear A, a sleeve rod is slidingly provided on the inner wall of the other end of the rotating sleeve, the sleeve rod is rotatably connected with the swing frame, one end of the sleeve rod is connected and fixedly provided with a driving wheel, one end of the brush wheel is connected and fixedly provided with a driven wheel, the driven wheel is meshingly transmitted with the driving wheel.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. During the use of the hinge pin, when it is necessary to maintain and clean the connection between the hinge pin and the bucket body, the brush wheel is moved close to the connection between the hinge pin and the bucket body, and then driven by the rotating frame and the transmission mechanism, the brush wheel can rotate around the connection between the hinge pin and the bucket body, and at the same time, it rotates and reciprocates, so as to more comprehensively and effectively clean the dirt and debris at the connection between the hinge pin and the bucket body, and can efficiently remove the accumulated dirt and debris, ensure the smooth movement of the hinge pin, reduce the cost of manual maintenance through automatic cleaning, and extend the service life of the hinge pin and the bucket; 2. During the use of the hinge pin, a fixed shield and a movable shield ring are provided to cover the connection between the hinge pin and the bucket body, so that in dusty, humid or muddy working environments, the connection between the hinge pin and the bucket body can be effectively protected, and the entry of dirt and moisture can be reduced, thereby reducing the risk of wear and corrosion, which not only improves the reliability of the equipment, but also provides protection for operations in harsh environments; 3. When maintaining and cleaning the connection between the hinge pin and the bucket body, the electric push rod drives the rotating frame to move and the movable baffle ring can be automatically pulled open by the pull rope, so that the cleaned dirt can fall out and avoid accumulation in the fixed baffle cover and the movable baffle ring, ensuring the cleaning effect and the normal operation of the connecting parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of a hinge pin for a loader bucket of the present invention; Figure 2 It is a partial cross-sectional schematic diagram of a hinge pin and other structures of a hinge pin used for a loader bucket of the present invention; Figure 3 It is a partial structural cross-sectional schematic diagram of a hinge pin for a loader bucket of the present invention; Figure 4 It is a schematic diagram of the expansion structure of a limit plate and a connecting frame for a hinge pin of a loader bucket according to the present invention; Figure 5It is a cross-sectional expansion schematic diagram of a fixed shield structure of a hinge pin for a loader bucket of the present invention; Figure 6 It is a schematic diagram of the development of a rotating frame structure of a hinge pin for a loader bucket according to the present invention; Figure 7 It is a schematic diagram of the transmission mechanism structure of a hinge pin for a loader bucket of the present invention; Figure 8 The present invention is a schematic structural diagram of an articulation pin maintenance mechanism for an articulation pin of a loader bucket.

[0016] 1. Bucket body; 2. Articulated pin; 3. Limit plate; 4. Connecting frame; 5. Fixed shield; 6. Rotating frame; 7. Transmission mechanism; 8. Articulated pin maintenance mechanism; 301. Bolt; 302. Plug hole; 303. Positioning rod; 401. Positioning hole; 501. Movable retaining ring; 502. Spring; 503. Ring rack; 504. Toggle ring; 601. Pull ring; 602. Pull rope; 603. Motor; 604. 04, electric push rod; 605, driving wheel; 606, gear sleeve; 701, rotating shaft; 702, transmission wheel; 703, reciprocating screw rod; 704, gear A; 705, sliding rod; 706, adjusting rack; 801, brush wheel; 802, swing frame; 803, adjusting wheel; 804, rotating sleeve; 805, universal joint; 806, gear B; 807, sleeve rod; 808, driving wheel; 809, driven wheel. DETAILED DESCRIPTION

[0017] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0018] like Figure 1-Figure 8A hinge pin for a loader bucket is shown, comprising a bucket body 1, a plurality of hinge pins 2 are installed on the bucket body 1, both ends of the hinge pin 2 are installed with a limit plate 3, the limit plate 3 is connected and fixed with the hinge pin 2 through a plurality of bolts 301, a plug hole 302 is provided on the limit plate 3, a positioning rod 303 is provided through a threaded connection on the limit plate 3, a connecting frame 4 is movably plugged on the limit plate 3, one end of the connecting frame 4 is slidably matched with the plug hole 302, a positioning hole 401 is provided at one end of the connecting frame 4 located in the plug hole 302, the positioning hole 401 is movably plugged with one end of the positioning rod 303, and a connecting frame 4 is provided on the connecting frame 4. A fixed baffle 5 is fixedly provided, and a movable baffle ring 501 is slidingly provided on the inner wall of one end of the fixed baffle 5 close to the hinge pin 2, a plurality of springs 502 are connected and fixedly provided inside the movable baffle ring 501, and the other end of the spring 502 is connected and fixedly provided on the inner wall of the fixed baffle 5, an annular rack 503 is fixedly provided on the inner wall of the fixed baffle 5, and a toggle ring 504 is fixedly provided on the outer side of the movable baffle ring 501, a rotating frame 6 is slidingly and rotatably provided on the connecting frame 4, a transmission mechanism 7 is rotatably provided on the rotating frame 6, and a hinge pin maintenance mechanism 8 is rotatably provided on the rotating frame 6, and the hinge pin maintenance mechanism 8 includes a brush wheel 801.

[0019] like Figure 6 As shown, a pull ring 601 is rotatably connected to one end of the rotating frame 6, and two pull ropes 602 are fixedly connected to the pull ring 601. The other end of the pull rope 602 extends to the inside of the fixed baffle 5 and is fixedly connected to the movable baffle 501. A motor 603 is fixedly connected to the pull ring 601, and an electric push rod 604 is fixedly connected to one end of the pull ring 601. The electric push rod 604 is connected and fixedly connected to the fixed baffle 5. A driving wheel 605 is fixedly connected to the output end of the motor 603, and a gear sleeve 606 is fixedly connected to the rotating frame 6. The driving wheel 605 is meshed with the gear sleeve 606 for transmission. The electric push rod 604 is used to drive the rotating frame 6 to move, so that the brush wheel 801 is close to the connection between the bucket body 1 and the hinge pin 2. At this time, the pull ring 601 will pull the movable baffle ring 501 back into the fixed baffle cover 5 through the pull rope 602, and the motor 603 is used to drive the driving wheel 605 to rotate, so that the driving wheel 605 drives the rotating frame 6 connected to the gear sleeve 606 to rotate.

[0020] like Figure 7 As shown, the transmission mechanism 7 includes a rotating shaft 701, which is rotatably connected to one end of the rotating frame 6, and a transmission wheel 702 is fixedly connected to one end of the rotating shaft 701, and the transmission wheel 702 is meshed with the annular rack 503. Under the action of the annular rack 503, the transmission wheel 702 rotates, thereby driving the connected rotating shaft 701 to rotate.

[0021] The other end of the rotating shaft 701 is connected and fixedly provided with a reciprocating screw rod 703, and the other end of the reciprocating screw rod 703 is connected and fixedly provided with a gear A704. The reciprocating screw rod 703 is slidably provided with a sliding rod 705, and the sliding rod 705 is slidably provided with a rotating frame 6, and an adjusting rack 706 is connected and fixedly provided on the sliding rod 705. The rotating shaft 701 drives the reciprocating screw rod 703 to rotate, and at this time, the reciprocating screw rod 703 drives the adjusting rack 706 connected to the sliding rod 705 to reciprocate, thereby driving the swing frame 802 connected to the adjusting wheel 803 to swing back and forth, so that the brush wheel 801 swings.

[0022] like Figure 8 As shown, a swing frame 802 is rotatably connected to the brush wheel 801, one end of the swing frame 802 is rotatably connected to the rotating frame 6, and one end of the swing frame 802 is fixedly connected to an adjusting wheel 803, which is meshed with the adjusting rack 706 for transmission.

[0023] A rotating sleeve 804 is provided on the swing frame 802, and a universal joint 805 is fixedly provided at one end of the rotating sleeve 804, and the universal joint 805 is rotatably connected to the rotating frame 6, and a gear B806 is fixedly provided at one end of the universal joint 805, and the gear B806 is meshingly transmitted with the gear A704. A sleeve rod 807 is slidably provided on the inner wall of the other end of the rotating sleeve 804, and the sleeve rod 807 is rotatably connected to the swing frame 802, and a driving wheel 808 is fixedly provided at one end of the sleeve rod 807, and a driven wheel 809 is fixedly provided at one end of the brush wheel 801, and the driven wheel 809 is meshingly transmitted with the driving wheel 808. When the reciprocating screw 703 rotates, it will drive the gear B806 to rotate through the gear A704, and then the gear B806 will drive the rotating sleeve 804 to rotate, so that the rotating sleeve 804 drives the driving wheel 808 connected to the sleeve rod 807 to rotate, and then the driving wheel 808 will drive the brush wheel 801 connected to the driven wheel 809 to rotate, so as to maintain and clean the connection between the bucket body 1 and the hinge pin 2.

[0024] Working principle: When the hinge pin 2 needs to be installed on the bucket body 1, the hinge pin 2 is inserted into the installation hole on the bucket body 1, and then the limit plates 3 are installed at both ends of the hinge pin 2 through the bolts 301, so that the hinge pin 2 is installed and fixed to the bucket body 1, and then one end of the connecting frame 4 is inserted into the plug hole 302, and then the positioning rod 303 is rotated so that one end of the positioning rod 303 is inserted into the positioning hole 401 to fix the connecting frame 4; Then, under the action of the spring 502, the movable retaining ring 501 will contact the bucket body 1, and cooperate with the fixed retaining cover 5 to shield and protect the connection between the bucket body 1 and the hinge pin 2; When it is necessary to maintain and clean the connection between the bucket body 1 and the hinge pin 2, the electric push rod 604 is first used to drive the rotating frame 6 to move so that the brush wheel 801 is close to the connection between the bucket body 1 and the hinge pin 2. At this time, the pull ring 601 will pull the movable baffle ring 501 back into the fixed baffle cover 5 through the pull rope 602; Then, the motor 603 is used to drive the driving wheel 605 to rotate, so that the driving wheel 605 drives the rotating frame 6 connected to the gear sleeve 606 to rotate. At this time, under the action of the annular rack 503, the transmission wheel 702 will rotate, thereby driving the connected rotating shaft 701 to rotate, so that the rotating shaft 701 drives the reciprocating screw rod 703 to rotate. At this time, the reciprocating screw rod 703 drives the adjusting rack 706 connected to the sliding rod 705 to reciprocate, thereby driving the swing frame 802 connected to the adjusting wheel 803 to swing back and forth, so that the brush wheel 801 swings; Then when the reciprocating screw 703 rotates, it will drive the gear B806 to rotate through the gear A704, and then the gear B806 will drive the rotating sleeve 804 to rotate, so that the rotating sleeve 804 drives the driving wheel 808 connected to the sleeve rod 807 to rotate, and then the driving wheel 808 will drive the brush wheel 801 connected to the driven wheel 809 to rotate, so as to maintain and clean the connection between the bucket body 1 and the hinge pin 2.

[0025] 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 only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection claimed by the present invention is defined by the attached claims and their equivalents.

Claims

1. A hinge pin for a loader bucket, comprising a bucket body (1), characterized in that: The bucket body (1) is provided with a plurality of hinge pins (2), and both ends of the hinge pins (2) are provided with limit plates (3), the limit plates (3) are connected and fixed to the hinge pins (2) via a plurality of bolts (301), the limit plates (3) are provided with a plug hole (302), a positioning rod (303) is provided through the limit plate (3) and is threadedly connected, a connecting frame (4) is movably connected to the limit plate (3), one end of the connecting frame (4) is slidably matched with the plug hole (302), a positioning hole (401) is provided at one end of the connecting frame (4) located in the plug hole (302), the positioning hole (401) is movably connected to one end of the positioning rod (303), and a fixed shield is connected and fixed to the connecting frame (4). (5), a movable retaining ring (501) is slidably provided on the inner wall of one end of the fixed retaining cover (5) close to the hinge pin (2), a plurality of springs (502) are connected and fixedly provided inside the movable retaining ring (501), the other end of the spring (502) is connected and fixedly provided to the inner wall of the fixed retaining cover (5), an annular rack (503) is connected and fixedly provided to the inner wall of the fixed retaining cover (5), a toggle ring (504) is connected and fixedly provided outside the movable retaining ring (501), a rotating frame (6) is slidably and rotatably provided on the connecting frame (4), a transmission mechanism (7) is rotatably provided on the rotating frame (6), a hinge pin maintenance mechanism (8) is rotatably provided on the rotating frame (6), and the hinge pin maintenance mechanism (8) comprises a brush wheel (801).

2. A hinge pin for a loader bucket according to claim 1, characterized in that: A pull ring (601) is rotatably connected to one end of the rotating frame (6), two pull ropes (602) are fixedly connected to the pull ring (601), the other ends of the pull ropes (602) extend into the interior of the fixed baffle (5) and are fixedly connected to the movable baffle (501), a motor (603) is fixedly connected to the pull ring (601), one end of the pull ring (601) is fixedly connected to an electric push rod (604), the electric push rod (604) and the fixed baffle (5) are connected and fixedly arranged through the fixed baffle, a driving wheel (605) is fixedly connected to the output end of the motor (603), a gear sleeve (606) is fixedly connected to the rotating frame (6), and the driving wheel (605) is meshed with the gear sleeve (606) for transmission.

3. A hinge pin for a loader bucket according to claim 1, characterized in that: The transmission mechanism (7) comprises a rotating shaft (701), wherein the rotating shaft (701) is rotatably connected to one end of the rotating frame (6), and a transmission wheel (702) is fixedly connected to one end of the rotating shaft (701), and the transmission wheel (702) is meshed with the annular rack (503) for transmission.

4. A hinge pin for a loader bucket according to claim 3, characterized in that: A reciprocating screw rod (703) is fixedly connected to the other end of the rotating shaft (701), a gear A (704) is fixedly connected to the other end of the reciprocating screw rod (703), a sliding rod (705) is slidably matched with the reciprocating screw rod (703), the sliding rod (705) is slidably matched with the rotating frame (6), and an adjusting rack (706) is fixedly connected to the sliding rod (705).

5. A hinge pin for a loader bucket according to claim 1, characterized in that: A swing frame (802) is rotatably connected to the brush wheel (801), one end of the swing frame (802) is rotatably connected to the rotating frame (6), one end of the swing frame (802) is fixedly connected to an adjusting wheel (803), and the adjusting wheel (803) is meshed with the adjusting rack (706) for transmission.

6. A hinge pin for a loader bucket according to claim 5, characterized in that: The swing frame (802) is provided with a rotating sleeve (804), one end of the rotating sleeve (804) is connected and fixedly provided with a universal joint (805), the universal joint (805) is rotatably connected to the rotating frame (6), one end of the universal joint (805) is connected and fixedly provided with a gear B (806), the gear B (806) is meshingly and transmission-arranged with the gear A (704), the other end of the rotating sleeve (804) is provided with a sleeve rod (807) in sliding cooperation with the inner wall, the sleeve rod (807) is rotatably connected to the swing frame (802), one end of the sleeve rod (807) is connected and fixedly provided with a driving wheel (808), one end of the brush wheel (801) is connected and fixedly provided with a driven wheel (809), the driven wheel (809) is meshingly and transmission-arranged with the driving wheel (808).

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