CN219671457U - Excavator - Google Patents

Abstract

The utility model relates to an excavator, which comprises a frame, wherein a slewing bearing and a mounting frame are arranged on the frame, the mounting frame is arranged on the slewing bearing and driven by the slewing bearing to rotate relative to the frame, an excavating arm, a control device, a seat and a power device are arranged on the mounting frame, one end of the excavating arm is rotationally connected with the mounting frame, the other end of the excavating arm is rotationally connected with a bucket, and the control device is used for controlling the power device to provide excavating power for the excavating arm. The excavator provided by the utility model has a simple structure, and through the structural design, the flexibility of the excavator in working is effectively improved, and various construction operation requirements can be met.

Description

Excavator

Technical Field

The utility model relates to the technical field of excavators, in particular to an excavator.

Background

In the prior art, an excavator, also called an excavating machine, is an earth moving machine that excavates material above or below a deck with a bucket and loads the material into a transport vehicle or discharges the material to a storage yard. In recent years, development of engineering machinery is relatively fast, and the excavator is one of the most important engineering machinery in engineering construction, so that at present, in order to meet the requirements of work in a narrow working area, such as local excavation work of home gardens, a miniature excavator is gradually developed, a self-walking device is canceled, other vehicles are adopted to be transported to a construction site, and the reduced volume is used for adapting to a narrow working area, so that the excavation efficiency can be effectively improved.

However, such small-sized excavators on the market have the problems of complex structure and small rotation amplitude, and particularly can only partially rotate through rotation of the joint of the excavating arm and the machine body, so that the excavator is not flexible enough when loading and unloading earthwork, and meanwhile, the excavator does not have other capabilities except the excavating capability when working, cannot meet the working condition use requirements under various conditions, and has a small application range.

Disclosure of Invention

In order to solve the problems, the utility model provides the excavator which has a simple structure and flexible excavation work and meets the requirements of various construction operations.

In order to achieve the purpose, the excavator designed by the utility model comprises a frame, wherein a slewing bearing and a mounting frame are arranged on the frame, the mounting frame is arranged on the slewing bearing and driven by the slewing bearing to rotate relative to the frame, an excavating arm, a control device, a seat and a power device are arranged on the mounting frame, one end of the excavating arm is rotationally connected with the mounting frame, the other end of the excavating arm is rotationally connected with an excavating bucket, and the control device is used for controlling the power device to provide excavating power for the excavating arm.

For simply and effectively realizing rotation and supporting capacity of the slewing bearing, the slewing bearing comprises a gear ring, an inner ring, a rolling element, a mounting plate, a driving device and a gear, wherein the inner ring is coaxially arranged with the gear ring, an accommodating space is formed between the outer side surface of the gear ring and the inner side surface of the gear ring, one end, which axially extends out of the gear ring, of one side, which is away from the rack, of the inner ring is fixedly connected with the mounting plate, the driving device is arranged on the mounting plate and is used for adjusting the rotation direction under the control of the control device, the gear is coaxially and fixedly connected with an output shaft of the driving device and is meshed with the gear ring, and the rolling element is arranged in the accommodating space and is used for driving the mounting plate and the inner ring to rotate relative to the gear ring through the meshing of the gear ring and the gear ring.

In order to make the operation of ring gear and inner circle more stable, reliable, ring gear and inner circle cooperation junction is equipped with the rubber circle that is used for sealed accommodation space, all seted up on ring gear and the inner circle with rubber circle assorted draw-in groove.

In order to further improve the excavating capacity of the excavator bucket, the excavator bucket is further provided with an auxiliary device for assisting the excavator bucket to work, the auxiliary device comprises a mechanical claw and a telescopic arm, one end of the telescopic arm is rotationally connected with the excavating arm, the other end of the telescopic arm is rotationally connected with the mechanical claw, one end of the mechanical claw, which is far away from the telescopic arm, is rotationally connected with the excavating arm, and the telescopic arm is arranged to enable the mechanical claw to rotate towards the area where the excavator bucket is located by taking the rotation connection position of the mechanical claw and the excavating arm as an axle center.

For simply and effectively adjusting the clamping angle of the mechanical claw and the bucket, the telescopic arm comprises a first arm, a second arm and a sleeve, one end of the first arm and one end of the second arm are respectively connected with the excavating arm and the mechanical claw in a rotating mode, the other end of the first arm and the other end of the second arm are respectively connected with two ends of the sleeve in a threaded mode, and threads in opposite directions on the first arm and the second arm are matched with threads on the inner wall of the sleeve to form threaded telescopic connection.

In order to improve the stability of this excavator during operation, the frame one end can be dismantled and be connected with the supporting leg, and the other end can be dismantled and be connected with the gyro wheel and support.

In order to facilitate the movement of the excavator, the two ends of the frame are fixedly provided with the fixing sleeves, one end of each supporting leg is detachably connected with the frame through the fixing sleeve, the other end of each supporting leg is fixedly connected with the supporting palm, one end of each roller support is detachably connected with the frame through the fixing sleeve, and the other end of each roller support is hinged with the corresponding roller.

In order to make the operation of this excavator more nimble, controlling means includes control lever and control pedal, the control lever is used for controlling the arm and drives the excavator bucket and excavate the work, control pedal is used for controlling drive arrangement's rotation direction.

In order to further improve the stability of the gear ring and the inner ring during operation, the gear ring is further provided with a gear cover ring, and the gear cover ring is arranged on the frame and is arranged on the outer side of the gear ring in a surrounding manner.

The excavator designed by the utility model has simple structure and flexible excavating work, and can meet various construction operation requirements.

Drawings

Fig. 1 is a schematic perspective view of embodiment 1 of the present utility model;

FIG. 2 is a side view of embodiment 1 of the present utility model;

FIG. 3 is an enlarged schematic view at A in FIG. 1;

FIG. 4 is a schematic view showing a structure of a slewing bearing and a frame in accordance with an embodiment 1 of the present utility model;

FIG. 5 is an exploded perspective view of FIG. 4;

fig. 6 is a schematic view showing a connection structure between a ring gear and an inner race in embodiment 1 of the present utility model.

Wherein: the support frame 1, the support legs 2, the support legs 21, the roller support 3, the roller 31, the slewing bearing 4, the gear ring 41, the inner ring 42, the rolling element 43, the mounting plate 44, the driving device 45, the gear 46, the accommodating space 47, the rubber ring 48, the clamping groove 49, the mounting frame 5, the excavating arm 6, the control device 7, the operating lever 71, the control pedal 72, the seat 8, the power device 9, the auxiliary device 10, the mechanical claw 101, the telescopic arm 102, the first arm 103, the second arm 104, the sleeve 105, the bucket 11, the fixed sleeve 12 and the gear cover ring 13.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

Example 1

As shown in fig. 1-2, the excavator described in this embodiment includes a frame 1, a slewing bearing 4 and a mounting frame 5 are disposed on the frame 1, the mounting frame 5 is disposed on the slewing bearing 4 and is driven by the slewing bearing 4 to rotate relative to the frame 1, an excavating arm 6, a control device 7, a seat 8 and a power device 9 are disposed on the mounting frame 5, one end of the excavating arm 6 is rotationally connected with the mounting frame 5, the other end is rotationally connected with a bucket 11, and the control device 7 is used for controlling the power device 9 to provide excavating power for the excavating arm 6. In this embodiment, the power device 9 is a power source of the excavator, and is controlled by the control device 7 to provide power for the excavating arm, and the excavating arm 6 is composed of a plurality of mechanical arms and a plurality of groups of hydraulic cylinders so as to drive the bucket 11 to perform excavating work.

In some embodiments of the present utility model, as shown in fig. 4, 5 and 6, the slewing bearing 4 includes a gear ring 41, an inner ring 42 coaxially disposed with the gear ring 41, a rolling member 43, a mounting plate 44, a driving device 45 and a gear 46, wherein the inner ring 42 is disposed inside the gear ring 41, a receiving space 47 is formed between an outer side surface of the gear ring 41 and an inner side surface of the gear ring 41, one end of the inner ring 42 axially extending out of the gear ring 41 on a side facing away from the frame 1 is fixedly connected with the mounting plate 44, the driving device 45 is disposed on the mounting plate 44 and is configured to adjust a rotation direction under the control of the control device 7, the gear 46 is coaxially and fixedly connected with an output shaft of the driving device 45 and is meshed with the gear ring 41, and the rolling member 43 is disposed in the receiving space 47 and is configured to drive the mounting plate 44 and the inner ring 42 to rotate relative to the gear ring 41 when the driving device 45 is meshed with the gear ring 41 through the gear 46. In this embodiment, as shown in fig. 2, when in use, an operator sits on the seat 8 and controls the excavating arm 6 to cooperate with the bucket 11 to perform excavating work in the vertical direction through the control device 7, when the excavating angle needs to be adjusted, the rotation direction of the driving device 45 can be controlled through the control device 7 to realize rotation work in the horizontal direction of the excavator, so as to meet the construction requirement in a narrow space, specifically, as shown in fig. 5 and fig. 6, when the driving device 45 drives the gear 46 to rotate through the output shaft thereof, the gear 46 is fixed on the frame 1, and then the gear 46 rotates along the periphery of the gear 41 under the driving of the driving device 45 and cooperates with the rolling members 43 arranged in the accommodating space 47, so that the mounting plate 44 and the inner ring 42 can rotate relative to the gear 41, and finally the mounting frame 5 on the mounting plate 44 is driven to rotate, so as to realize rotation work in the horizontal direction of the excavator, and the structure is simple and practical. In addition, in the present embodiment, the driving device 45 preferably adopts a hydraulic motor to provide better rotation performance, the rolling members 43 preferably adopt balls, so that the inner ring 42 rotates more stably and smoothly relative to the ring gear 41, and of course, the slewing bearing 4 mentioned in the present embodiment can be designed and produced according to the self-structure requirement, but the stated product can be directly purchased externally, thereby reducing the production cost and maintenance cost.

In some embodiments of the present utility model, as shown in fig. 5 and 6, in order to make the operation of the gear ring 41 and the inner ring 42 more stable and reliable, a rubber ring 48 for sealing the accommodating space 47 is provided at the mating connection between the gear ring 41 and the inner ring 42, and a clamping groove 49 matched with the rubber ring 48 is provided on both the gear ring 41 and the inner ring 42. The sealing ring 41 can prevent dust and sundries in the external environment from entering the accommodating space 47 to cause the locking of the rolling element 43, thereby effectively improving the stability of the gear ring 41 and the inner ring 42 during operation.

In some embodiments of the present utility model, as shown in fig. 1 and 2, in order to further enhance the excavation capability of the bucket 11, the auxiliary device 10 further includes an auxiliary device 10 for assisting the operation of the bucket 11, where the auxiliary device 10 includes a gripper 101 and a telescopic arm 102, one end of the telescopic arm 102 is rotatably connected to the excavating arm 6, the other end of the telescopic arm 102 is rotatably connected to the gripper 101, and one end of the gripper 101 away from the telescopic arm 102 is rotatably connected to the excavating arm 6, and the telescopic arm 102 is configured such that the gripper 101 can rotate toward the area where the bucket 11 is located around the rotational connection of the gripper 101 and the excavating arm 6. By means of the structural design, the excavating efficiency of the excavator can be effectively improved, the excavator has construction operation capacity except excavation, specifically, when the telescopic arm 102 is fixed, the mechanical claw 101 can be kept motionless at a certain angle, the mechanical claw 101 is matched with the excavator bucket 11 to enable the excavator to have clamping capacity, and objects which cannot be excavated by the single excavator bucket 11, such as larger stones, logs, irregular building materials and the like, can be clamped during working, so that various construction operation requirements are met. In addition, in the present embodiment, as shown in the figure, the distal end of the gripper 101 is designed to be saw-tooth-shaped to better clamp and fix the object to be constructed.

In some embodiments of the present utility model, as shown in fig. 2 and 3, for simply and effectively adjusting the clamping angle of the gripper 101 and the bucket 11, the telescopic arm 102 includes a first arm 103, a second arm 104 and a sleeve 105, one end of the first arm 103 and one end of the second arm 104 are respectively rotatably connected with the excavating arm 6 and the gripper 101, the other end of the first arm 103 and the second arm 104 are respectively in threaded connection with two ends of the sleeve 105, and the first arm 103 and the second arm 104 are respectively in threaded telescopic connection with the threads on the inner wall of the sleeve 105 through the opposite threads thereon. Thus, by rotating the sleeve 105, the first arm 103 and the second arm 104 are ejected in opposite directions by utilizing the threads in the sleeve, and the mechanical claw 101 is further rotated towards the area where the excavator bucket 11 is located, so that the clamping angle of the mechanical claw 101 and the excavator bucket 11 can be adjusted according to the size of a construction object, and the practicability of the excavator is further improved.

In some embodiments of the present utility model, in order to improve the stability of the excavator during operation, the frame 1 is detachably connected with a supporting leg 2 at one end and a roller support 3 at the other end. In the embodiment, as shown in fig. 1, the supporting legs 2 are used for supporting the stability of the excavator during working, avoiding potential safety hazards caused by the movement of the excavator during working, the roller supports 3 are used for facilitating the movement and transportation of the excavator, the power devices 9 are used for providing power for the excavating arms 6 during excavating work,

in some embodiments of the present utility model, as shown in fig. 1 and 4, in order to facilitate the movement of the excavator, fixing sleeves 12 are fixedly installed at two ends of the frame 1, one end of the supporting leg 2 is detachably connected with the frame 1 through the fixing sleeve 12, the other end is fixedly connected with a supporting palm 21, one end of the roller support 3 is detachably connected with the frame 1 through the fixing sleeve 12, and the other end is hinged with a roller 31. In this embodiment, the two ends of the frame are respectively provided with two fixing sleeves 12, the two supporting legs 2 and the two corresponding roller supports 3 are respectively provided, by utilizing this structural design, the rapid disassembly and assembly of the supporting legs 2 and the roller supports 3 can be realized, and if necessary, when the excavator cannot turn around in a narrow operation space, the supporting legs 2 and the roller supports 3 can be disassembled and interchanged to promote the flexibility of the excavator in the work in the narrow space, in addition, the supporting legs 21 are used, so that the excavator can be inserted into the soil through the supporting legs 21 to promote the stability of the excavator in work, and the roller 3 can drag the excavator through other vehicles when the excavator needs transportation and transfer, so that the hauling is very convenient due to the roller 3.

In some embodiments of the present utility model, as shown in fig. 1 and 2, in order to make the operation of the excavator more flexible, the control device 7 includes a control lever 71 and a control pedal 72, wherein the control lever 71 is used for controlling the mechanical arm to drive the bucket 11 to perform the excavating work, and the control pedal 72 is used for controlling the rotation direction of the driving device 45. In this way, during operation, the operator controls the mechanical arm to drive the bucket 11 to perform excavation by operating the control lever 71 by hand, and the foot operation control pedal 72 controls the rotation direction of the driving device 45, so that the excavation efficiency is improved, and the operation of the excavator is more flexible.

In some embodiments of the present utility model, as shown in fig. 1 and 5, in order to further improve the stability of the ring gear 41 and the inner ring 42 during operation, the gear cover ring 13 is further included, and the gear cover ring 13 is disposed on the frame 1 and is disposed around the outer side of the ring gear 41. In this way, dust and sundries in the external environment can be prevented from entering the area where the gear ring 41 is located, and the stability of the gear ring 41 and the inner ring 42 during operation is effectively improved.

The excavator provided by the embodiment is simple in structure, and through structural design, the flexibility of the excavator in working is effectively improved, and various construction operation requirements can be met.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. The excavator comprises a frame (1) and is characterized in that a slewing bearing (4) and a mounting frame (5) are arranged on the frame (1), the mounting frame (5) is arranged on the slewing bearing (4) and rotates relative to the frame (1) under the drive of the slewing bearing (4), an excavating arm (6), a control device (7), a seat (8) and a power device (9) are arranged on the mounting frame (5), one end of the excavating arm (6) is rotationally connected with the mounting frame (5), the other end of the excavating arm is rotationally connected with a bucket (11), and the control device (7) is used for controlling the power device (9) to provide excavating power for the excavating arm (6); the slewing bearing (4) comprises a gear ring (41), an inner ring (42), a rolling element (43), a mounting plate (44), a driving device (45) and a gear (46), wherein the inner ring (42) is coaxially arranged with the gear ring (41), the inner ring (42) is arranged inside the gear ring (41) and an accommodating space (47) is formed between the outer side surface of the gear ring (41) and the inner side surface of the gear ring (41), one end, which axially extends out of the gear ring (41), of one side of the inner ring (42) away from the frame (1) is fixedly connected with the mounting plate (44), the driving device (45) is arranged on the mounting plate (44) and is used for adjusting the rotation direction under the control of the control device (7), the gear (46) is coaxially and fixedly connected with the output shaft of the driving device (45) and is meshed with the gear ring (41), and the rolling element (43) is arranged in the accommodating space (47) and is used for driving the mounting plate (44) and the inner ring (42) to rotate relative to the gear ring (41) through the meshing of the gear (46).

2. The excavator according to claim 1, wherein the mating connection of the gear ring (41) and the inner ring (42) is provided with a rubber ring (48) for sealing the accommodation space (47), and the gear ring (41) and the inner ring (42) are provided with clamping grooves (49) matched with the rubber ring (48).

3. The excavator according to claim 1, further comprising an auxiliary device (10) for assisting the operation of the excavator bucket (11), wherein the auxiliary device (10) comprises a mechanical claw (101) and a telescopic arm (102), one end of the telescopic arm (102) is rotatably connected with the excavator arm (6) and the other end of the telescopic arm is rotatably connected with the mechanical claw (101), one end of the mechanical claw (101) away from the telescopic arm (102) is rotatably connected with the excavator arm (6), and the telescopic arm (102) is arranged so that the mechanical claw (101) can rotate towards the area where the excavator bucket (11) is located by taking the rotational connection position of the mechanical claw (101) and the excavator arm (6) as an axle center.

4. The excavator according to claim 3, wherein the telescopic arm (102) comprises a first arm (103), a second arm (104) and a sleeve (105), one end of the first arm (103) and one end of the second arm (104) are respectively connected with the excavating arm (6) and the mechanical claw (101) in a rotating mode, the other end of the first arm and the second arm are respectively connected with two ends of the sleeve (105) in a threaded mode, and threads on the first arm (103) and the second arm (104) in opposite directions are matched with threads on the inner wall of the sleeve (105) to form threaded telescopic connection.

5. Excavator according to claim 1, characterized in that the frame (1) is detachably connected with the support legs (2) at one end and with the roller support (3) at the other end.

6. The excavator according to claim 5, wherein fixing sleeves (12) are fixedly arranged at two ends of the frame (1), one end of the supporting leg (2) is detachably connected with the frame (1) through the fixing sleeves (12), the other end of the supporting leg is fixedly connected with a supporting palm (21), one end of the roller support (3) is detachably connected with the frame (1) through the fixing sleeves (12), and the other end of the roller support is hinged with a roller (31).

7. The excavator according to claim 1, characterized in that the control device (7) comprises a control lever (71) and a control pedal (72), the control lever (71) is used for controlling the mechanical arm to drive the excavator bucket (11) to perform the excavating work, and the control pedal (72) is used for controlling the rotation direction of the driving device (45).

8. The excavator according to claim 1, further comprising a gear rim (13), said gear rim (13) being provided on the frame (1) and surrounding the outside of the gear ring (41).