Desilting bucket mechanism of excavator

Abstract

The utility model discloses an excavator desilting bucket mechanism which comprises an excavator transmission arm and a rotating seat, the rotating seat is installed at the bottom end of the excavator transmission arm, a worm is arranged in the rotating seat and movably connected with the rotating seat, a rotating motor is installed on the side wall of the rotating seat, and the rotating motor is movably connected with the rotating seat. The output end of the rotating motor is connected with a worm, a rotating shaft is movably installed in the position, on one side of the worm, of the rotating seat, the surface of the rotating shaft is sleeved with a worm gear, the worm gear is meshed with the worm, an adjusting frame is installed at the bottom end of the rotating shaft, and a bidirectional lead screw is movably installed in the adjusting frame. According to the utility model, the silt can be conveniently grabbed, clamped and cleaned, the relative distance between the two groups of buckets can be conveniently adjusted to adapt to different operation distances, the silt at different positions can be better desilted, and the convenience and the flexibility of desilting are improved.

Description

Technical Field

[0001] This utility model relates to the field of bucket mechanism technology, specifically to a dredging bucket mechanism for an excavator. Background Technology

[0002] Excavator buckets are the main tools installed on excavators for digging, loading, and unloading materials. Excavator buckets are widely used in various engineering fields such as construction sites, mining, and water conservancy projects. Different types of buckets are suitable for different working environments and needs. For example, earthmoving buckets are suitable for light-load operations, rock buckets are suitable for heavy-load operations, and loosening buckets are suitable for hard soil operations. Excavator buckets are required in river dredging operations. In order to better dredge river silt, an excavator dredging bucket mechanism is proposed.

[0003] As disclosed in the authorization announcement number CN210766954U, an excavator dredging bucket mechanism includes a dredging bucket hinged to the end of the stick, a dredging pressure plate hinged to the connection end between the dredging bucket and the stick, and a dredging hydraulic cylinder that pushes the dredging pressure plate to rotate and compress the silt and water in the dredging bucket. The front wall of the dredging bucket has an arc-shaped cross-section, and the center of the arc-shaped front wall is located at the hinge point between the dredging pressure plate and the stick. When the dredging bucket rotates, there is a gap between the dredging pressure plate and the inner wall of the arc-shaped front wall. This excavator dredging bucket mechanism is simple in structure and easy to install and replace. By using this mechanism to replace the original hydraulic excavator bucket, river dredging operations can be realized.

[0004] Although it achieves continuous compression of silt through the relative rotation of the dredging bucket and the dredging pressure plate, allowing the water in the silt to be continuously discharged from the drainage channel, thereby greatly reducing the water content of the initially dredged silt, it is beneficial to reduce dredging costs, shorten the dredging construction cycle, and protect the river environment.

[0005] However, it did not solve the problem that the existing bucket mechanism is not conducive to conveniently grabbing and clamping silt for cleaning, nor is it conducive to adjusting the relative distance between the two sets of buckets to adapt to different working distances and to better clean silt in different locations, thus affecting the convenience and flexibility of silt removal. Utility Model Content

[0006] The purpose of this utility model is to provide an excavator dredging bucket mechanism to solve the problems mentioned in the background art, such as the inconvenience of the bucket mechanism in grabbing and clamping silt for cleaning, the difficulty in adjusting the relative distance between the two sets of buckets to adapt to different working distances and to better dredging silt in different locations, which affects the convenience and flexibility of dredging.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dredging bucket mechanism for an excavator, comprising an excavator drive arm and a rotating seat. The rotating seat is mounted at the bottom end of the excavator drive arm. A worm gear is installed inside the rotating seat and is movably connected to the rotating seat. A rotary motor is mounted on the side wall of the rotating seat, and the output end of the rotary motor is connected to the worm gear. A rotating shaft is movably mounted inside the rotating seat on one side of the worm gear. A worm wheel is fitted on the surface of the rotating shaft and meshes with the worm gear. An adjusting frame is mounted at the bottom end of the rotating shaft. A double-acting screw is movably mounted inside the adjusting frame. Two sets of threaded sleeves are fitted on the surface of the double-acting screw and are threadedly connected to the double-acting screw. The threaded sleeves are also slidably connected to the adjusting frame.

[0008] Preferably, a drive motor is installed on the side wall of the adjustment frame, and the output end of the drive motor is connected to a bidirectional lead screw.

[0009] Preferably, a connecting post is installed at the bottom end of each threaded sleeve, and an integrated base is installed at the bottom end of each connecting post.

[0010] Preferably, five sets of hydraulic cylinders with equal spacing are installed on the side wall of the integrated base, and a pin is installed on the end of each hydraulic cylinder near the integrated base.

[0011] Preferably, the hydraulic cylinder is movably connected to the integrated base via a pin, and a rotating arm is installed on the side wall of the integrated base below the hydraulic cylinder.

[0012] Preferably, each of the rotating arms is equipped with a linkage shaft at one end near the integrated base, and the rotating arm is movably connected to the integrated base through the linkage shaft.

[0013] Preferably, each of the hydraulic cylinders is equipped with a push rod at its output end, and a retaining shaft is installed at the end of the push rod near the rotating arm. The push rod is movably connected to the rotating arm through the retaining shaft.

[0014] Preferably, each of the rotating arms has a clamping plate installed on its inner wall, and the clamping plate is fixedly connected to the rotating arm.

[0015] Compared with the prior art, the beneficial effects of this utility model are: the bucket mechanism not only realizes convenient gripping and clamping of silt for cleaning, but also facilitates the adjustment of the relative distance between the two sets of buckets to adapt to different working distances and to better clean silt in different locations, and improves the convenience and flexibility of silt cleaning.

[0016] (1) By operating the excavator to move the excavator drive arm, the excavator drive arm moves the whole device to the bottom of the river. The hydraulic cylinder drives the push rod to move. The push rod drives the rotating arm to rotate around the linkage shaft through the clamping shaft. The rotating arm drives the clamping plates to rotate and contact each other. With the cooperation of multiple clamping plates, a closed space is formed and the silt is clamped inside the clamping plates. Then, the excavator is operated again to move it upward and discharge the silt. When it is necessary to adjust the distance between the two sets of buckets, the drive motor drives the double screw to rotate. The double screw drives the two sets of threaded sleeves to move away from each other. The threaded sleeve drives the connecting column to move. The connecting column drives the buckets to move away from each other, thereby adjusting the distance between the two sets of buckets. This allows for better dredging of the silt at the bottom of the river. It realizes convenient gripping and clamping of silt for cleaning. It is convenient to adjust the relative distance between the two sets of buckets to adapt to different working distances and improves the convenience of dredging.

[0017] (2) When the position of the bucket needs to be adjusted by circumferential rotation, the rotary motor is turned on, the rotary motor drives the worm to rotate, the worm drives the rotating shaft to rotate through the worm wheel, and the rotating shaft drives the adjustment frame and the bucket to rotate, thereby adjusting the working position of the bucket, so as to facilitate better dredging of silt in different positions and improve the flexibility of dredging. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the rotating base of this utility model;

[0020] Figure 3 This is a side sectional view of the rotating seat of this utility model.

[0021] Figure 4 This is a three-dimensional structural diagram of the rotating arm of this utility model;

[0022] Figure 5 This is a side view sectional structural diagram of the rotating arm of this utility model.

[0023] In the diagram: 1. Excavator drive arm; 2. Rotary seat; 3. Adjusting frame; 4. Rotary shaft; 5. Worm gear; 6. Rotary motor; 7. Worm; 8. Drive motor; 9. Double-acting lead screw; 10. Threaded sleeve; 11. Integrated seat; 12. Connecting column; 13. Pin; 14. Hydraulic cylinder; 15. Push rod; 16. Clamping shaft; 17. Clamping plate; 18. Rotary arm; 19. Linkage shaft. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0025] Please see Figure 1-5 This utility model provides an embodiment of an excavator dredging bucket mechanism, including an excavator drive arm 1 and a rotating seat 2. The rotating seat 2 is installed at the bottom end of the excavator drive arm 1. A worm gear 7 is provided inside the rotating seat 2 and is movably connected to the rotating seat 2. A rotary motor 6 is installed on the side wall of the rotating seat 2. The rotary motor 6 plays a power driving role, and the output end of the rotary motor 6 is connected to the worm gear 7. A rotating shaft 4 is movably installed inside the rotating seat 2 on one side of the worm gear 7. A worm wheel 5 is fitted on the surface of the rotating shaft 4 and meshes with the worm gear 7. An adjusting frame 3 is installed at the bottom end of the rotating shaft 4. A double-acting screw 9 is movably installed inside the adjusting frame 3. Two sets of threaded sleeves 10 are fitted on the surface of the double-acting screw 9 and are threadedly connected to the double-acting screw 9. The threaded sleeves 10 are also slidably connected to the adjusting frame 3.

[0026] By operating the excavator to move the excavator drive arm 1, the entire device is moved to the bottom of the riverbed. Then, the hydraulic cylinder 14 is opened, and the pin 13 provides movable support for the hydraulic cylinder 14. The hydraulic cylinder 14 drives the push rod 15 to move, and the push rod 15, through the locking shaft 16, drives the rotating arm 18 to rotate around the linkage shaft 19. The rotating arm 18 drives the clamping plates 17 to rotate and contact each other. With the cooperation of multiple sets of clamping plates 17, a sealed space is formed, trapping the silt inside the clamping plates 17. Then, the excavator is operated again to move it upwards and discharge the silt. When it is necessary to adjust the distance between the two sets of buckets... When the machine is in operation, the drive motor 8 is turned on, which drives the bidirectional lead screw 9 to rotate. With the bidirectional lead screw 9 and the threaded sleeve 10 connected by threads, and the threaded sleeve 10 and the adjusting frame 3 connected by sliding, the bidirectional lead screw 9 drives the two sets of threaded sleeves 10 to move away from each other. The threaded sleeves 10 drive the connecting column 12 to move, and the connecting column 12 drives the buckets to move away from each other, thereby adjusting the distance between the two sets of buckets. This allows for better dredging of the silt at the bottom of the river, enabling convenient gripping and clamping of the silt for cleaning. It also facilitates adjusting the relative distance between the two sets of buckets to adapt to different working distances, improving the convenience of dredging.

[0027] A drive motor 8 is installed on the side wall of the adjustment frame 3. The drive motor 8 plays the role of power drive, and the output end of the drive motor 8 is connected to the bidirectional lead screw 9.

[0028] Each threaded sleeve 10 has a connecting post 12 installed at its bottom end, and each connecting post 12 has an integrated base 11 installed at its bottom end. Each integrated base 11 has five sets of hydraulic cylinders 14 installed at equal intervals on its side wall. The hydraulic cylinders 14 serve as power drives, and each hydraulic cylinder 14 has a pin 13 installed at the end near the integrated base 11.

[0029] The hydraulic cylinder 14 is movably connected to the integrated base 11 via the pin 13, and a rotating arm 18 is installed on the side wall of the integrated base 11 below the hydraulic cylinder 14. A linkage shaft 19 is installed on the end of the rotating arm 18 near the integrated base 11, and the rotating arm 18 is movably connected to the integrated base 11 via the linkage shaft 19.

[0030] Each hydraulic cylinder 14 has a push rod 15 installed at its output end. Each push rod 15 has a retaining pin 16 installed at the end near the rotating arm 18. The push rod 15 is movably connected to the rotating arm 18 through the retaining pin 16. Each rotating arm 18 has a clamping plate 17 installed on its inner wall. The clamping plate 17 is fixedly connected to the rotating arm 18.

[0031] When the position of the bucket needs to be adjusted by circumferential rotation, the rotary motor 6 is turned on, which drives the worm gear 7 to rotate. The worm gear 7 drives the rotating shaft 4 to rotate through the worm wheel 5. The rotating shaft 4 drives the adjusting frame 3 and the bucket to rotate, thereby adjusting the working position of the bucket to facilitate better dredging of silt in different locations and improve the flexibility of dredging.

[0032] Working principle: By operating the excavator, the excavator drive arm 1 moves, which in turn moves the entire device to the bottom of the riverbed. The hydraulic cylinder 14 drives the push rod 15 to move, which in turn drives the rotating arm 18 to rotate around the linkage shaft 19 via the clamping shaft 16. The rotating arm 18 drives the clamping plates 17 to rotate and contact each other. With the cooperation of multiple clamping plates 17, a sealed space is formed, trapping the silt inside. Then, the excavator is operated again to move the device upwards and discharge the silt. When it is necessary to adjust the distance between the two buckets, the drive motor 8 drives the double-acting screw 9 to rotate. 9 drives the two sets of threaded sleeves 10 to move away from each other. The threaded sleeves 10 drive the connecting column 12 to move, and the connecting column 12 drives the buckets to move away from each other, thereby adjusting the distance between the two sets of buckets and thus better dredging the silt at the bottom of the river. When it is necessary to rotate the bucket to adjust its position, the rotary motor 6 drives the worm 7 to rotate. The worm 7 drives the rotating shaft 4 to rotate through the worm wheel 5. The rotating shaft 4 drives the adjusting frame 3 and the bucket to rotate, thereby adjusting the working position of the bucket to facilitate better dredging of silt in different locations. The above is the complete usage of the excavator dredging bucket mechanism.

[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A dredging bucket mechanism for an excavator, comprising an excavator drive arm (1) and a swivel base (2), characterized in that: The bottom end of the excavator drive arm (1) is equipped with a rotating seat (2). The rotating seat (2) is equipped with a worm (7) and is movably connected to the rotating seat (2). A rotary motor (6) is installed on the side wall of the rotating seat (2) and the output end of the rotary motor (6) is connected to the worm (7). A rotating shaft (4) is movably installed inside the rotating seat (2) on one side of the worm (7). A worm wheel (5) is fitted on the surface of the rotating shaft (4) and meshes with the worm (7). An adjusting frame (3) is installed at the bottom end of the rotating shaft (4). A double-acting screw (9) is movably installed inside the adjusting frame (3). Two sets of threaded sleeves (10) are fitted on the surface of the double-acting screw (9) and are threadedly connected to the double-acting screw (9). The threaded sleeves (10) are slidably connected to the adjusting frame (3).

2. The excavator dredging bucket mechanism according to claim 1, characterized in that: A drive motor (8) is installed on the side wall of the adjustment frame (3), and the output end of the drive motor (8) is connected to the bidirectional lead screw (9).

3. The excavator dredging bucket mechanism according to claim 1, characterized in that: Each threaded sleeve (10) has a connecting post (12) installed at its bottom end, and each connecting post (12) has an integrated base (11) installed at its bottom end.

4. The excavator dredging bucket mechanism according to claim 3, characterized in that: Five sets of hydraulic cylinders (14) with equal spacing are installed on the side wall of the integrated base (11), and a pin (13) is installed on the end of each hydraulic cylinder (14) near the integrated base (11).

5. The excavator dredging bucket mechanism according to claim 4, characterized in that: The hydraulic cylinder (14) is movably connected to the integrated base (11) via a pin (13), and a rotating arm (18) is installed on the side wall of the integrated base (11) below the hydraulic cylinder (14).

6. The excavator dredging bucket mechanism according to claim 5, characterized in that: Each of the rotating arms (18) is equipped with a linkage shaft (19) at one end near the integrated base (11), and the rotating arm (18) is movably connected to the integrated base (11) through the linkage shaft (19).

7. The excavator dredging bucket mechanism according to claim 4, characterized in that: Each hydraulic cylinder (14) has a push rod (15) installed at its output end. Each push rod (15) has a retaining pin (16) installed at the end near the rotating arm (18). The push rod (15) is movably connected to the rotating arm (18) through the retaining pin (16).

8. The excavator dredging bucket mechanism according to claim 5, characterized in that: Each of the rotating arms (18) has a clamping plate (17) installed on its inner wall, and the clamping plate (17) is fixedly connected to the rotating arm (18).

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