CN211948641U

CN211948641U - Digging machine

Info

Publication number: CN211948641U
Application number: CN202020584715.7U
Authority: CN
Inventors: 高国欢; 徐瑾; 周韩
Original assignee: Sany Heavy Machinery Ltd
Current assignee: Sany Heavy Machinery Ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-11-17
Anticipated expiration: 2030-04-17

Abstract

The utility model discloses an excavator relates to excavator technical field. This excavator includes frame, driver's cabin, rotating turret and drive arrangement down, and the one end of rotating turret rotationally sets up on frame down, and on the driver's cabin was fixed in the rotating turret, drive arrangement rotationally set up on frame down, and drive arrangement's output and the other end of rotating turret rotationally are connected, and drive arrangement is used for driving the relative frame rotation of getting off of driver's cabin in vertical plane through the rotating turret. The utility model provides an excavator's driver's cabin angularly adjustable can promote the driving and the operation of driver experience in the operation process of going up a slope.

Description

Digging machine

Technical Field

The utility model relates to an engineering machine tool technical field particularly, relates to an excavator.

Background

At present, the common structure of the excavator is that a cab is fixed on a lower frame, and because the actual operation environment of the excavator is complex and various, when the excavator works uphill, the body of a driver is inclined along with the inclination of the cab, and the visual field of the driver is limited, so that the operation is inconvenient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an excavator, its inclination that can adjust the driver's cabin when going up a slope operation.

The utility model provides a technical scheme:

the utility model provides an excavator, includes frame, driver's cabin, rotating turret and drive arrangement down, the one end of rotating turret rotationally set up in down on the frame, the driver's cabin is fixed in on the rotating turret, drive arrangement rotationally set up in down on the frame, drive arrangement's output with the other end of rotating turret rotationally connects, drive arrangement is used for through the rotating turret drives the driver's cabin is relative lower frame is internal rotation in vertical plane.

Further, when one end of the rotating frame, which is connected with the driving device, is in contact with the lower frame, the cab is parallel to the lower frame.

Furthermore, one end of the rotating frame is provided with a bending piece, and the rotating frame is rotatably connected with the lower frame through the bending piece.

Furthermore, a supporting part is convexly arranged on one side of the lower frame, which is connected with the bending part, and when one end of the rotating frame, which is far away from the bending part, is contacted with the supporting part, the cab is parallel to the lower frame.

Furthermore, the driving device is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is rotatably connected with the lower frame, and a piston rod of the hydraulic cylinder is rotatably connected with the other end of the rotating frame.

Further, an explosion-proof valve is arranged on the hydraulic cylinder.

Furthermore, the excavator further comprises a detection device and a controller, the detection device is arranged on the cab and used for detecting an included angle between the cab and a horizontal plane, and the controller is respectively electrically connected with the detection device and the driving device and used for controlling the driving device to act according to a detection result of the detection device.

Further, when the detection device detects that the included angle between the cab and the horizontal plane is smaller than a zero value, a first signal is sent to the controller, so that the controller controls the driving device to drive in the forward direction.

Further, when the detection device detects that the included angle between the cab and the horizontal plane is equal to a zero value, a second signal is sent to the controller, so that the controller controls the driving device to stop.

Further, when the detection device detects that the included angle between the cab and the horizontal plane is larger than a zero value, a third signal is sent to the controller, so that the controller controls the driving device to drive reversely until the detection device detects that the included angle between the cab and the horizontal plane is equal to the zero value or the other end of the rotating frame is in contact with the lower frame, and the operation is stopped.

Compared with the prior art, the utility model provides an excavator, the one end of its rotating turret rotationally sets up on lower frame, and on the driver's cabin was fixed in the rotating turret, drive arrangement rotationally set up under on the frame, and drive arrangement's output and the other end of rotating turret rotationally are connected, and drive arrangement is used for driving relative lower frame of driver's cabin through the rotating turret and rotates in vertical plane. In practical application, when the excavator works on an uphill slope to cause the cab to tilt backwards, the output end of the driving device drives the rotating frame to rotate in a vertical plane relative to the lower frame, so that the cab is driven to rotate in the vertical plane, and the cab rotates to a proper position according to practical application environments, so that a driver can observe and operate the cab conveniently. Therefore, the utility model provides an excavator's beneficial effect includes: the angle of the cab is adjustable, and the driving and operation experience of a driver in the process of ascending operation can be improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments will be briefly described below. It is appreciated that the following drawings depict only certain embodiments of the invention and are therefore not to be considered limiting of its scope. For a person skilled in the art, it is possible to derive other relevant figures from these figures without inventive effort.

Fig. 1 is a schematic structural diagram of an excavator according to an embodiment of the present invention;

FIG. 2 is a schematic structural diagram of the driving device shown in FIG. 1 in a forward direction;

fig. 3 is a schematic structural diagram of an excavator according to an embodiment of the present invention during traveling on an uphill road.

Icon: 100-an excavator; 110-a lower frame; 111-a support; 130-a cab; 150-a turret; 151-bending piece; 170-driving means.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "inner", "outer", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and simplifying the description, but do not indicate or imply that the device or element that is referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used merely to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed" and "connected" are to be interpreted broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; the connection may be direct or indirect via an intermediate medium, and may be a communication between the two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

The following describes in detail embodiments of the present invention with reference to the accompanying drawings.

Examples

Referring to fig. 1, the excavator 100 of the present embodiment can adjust a relative angle between the cab 130 and a horizontal plane during an uphill operation, so as to prevent a body of a driver from tilting, obtain a better operation view, and greatly improve driving and operating experiences of the driver.

Referring to fig. 1 and 2, the excavator 100 of the present embodiment includes a lower frame 110, a cab 130, a rotating frame 150 and a driving device 170. The lower frame 110 is provided with a power mechanism for driving the cab 130 to travel on the ground. The driving device 170 is rotatably disposed on the lower frame 110, one end of the rotating frame 150 is rotatably disposed on the lower frame 110, and the other end of the rotating frame 150 is rotatably connected to an output end of the driving device 170, so as to drive the rotating frame 150 to rotate in a vertical plane relative to the lower frame 110. The bottom of the cab 130 is fixedly mounted on the rotating frame 150, and when the rotating frame 150 rotates relative to the lower frame 110, the cab 130 can be driven to rotate in a vertical plane, so that the relative included angle between the cab 130 and a horizontal plane can be adjusted.

In this embodiment, the driving device 170 is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is connected to the lower frame 110 through a pin shaft, and can rotate in a vertical plane relative to the lower frame 110, and an end of a piston rod of the hydraulic cylinder is connected to the other end of the rotating frame 150 through a pin shaft. When the piston rod extends, the rotating frame 150 is pushed to rotate in a vertical plane relative to the lower frame 110, and the cab 130 is driven to rotate in the vertical plane. In order to improve the safety, an explosion-proof cylinder is arranged on the hydraulic cylinder.

In consideration of the response speed of the angle adjustment of the cab 130, in this embodiment, the bottom of the cab 130 is fixed at one end of the rotating frame 150 connected to the driving device 170, and when the driving device 170 pushes the rotating frame 150 to rotate, the cab 130 can obtain a higher linear speed.

In addition, in order to increase the load strength of the rotating frame 150, a bending member 151 is provided at one end of the rotating frame 150, and the rotating frame 150 is rotatably connected to the lower frame 110 by the bending member 151. The bending member 151 is shaped like an arch bridge, and the cab 130 is located on one side of the convex arc of the bending member 151.

Further, in order to ensure that the cab 130 can be horizontal when the excavator 100 travels on a horizontal plane, the supporting portion 111 is convexly arranged on one side of the lower frame 110, which is connected with the bending member 151, and when the driving device 170 is in a natural state, one end of the rotating frame 150, which is far away from the bending member 151, is in contact with the supporting portion 111, a plane where the rotating frame 150 is connected with the cab 130 is parallel to the horizontal plane, and the cab 130 is parallel to the lower frame 110 at this time, i.e., an included angle with the horizontal plane is 0 °.

Referring to fig. 3, when the excavator 100 is working on an uphill slope, the included angle between the lower frame 110 and the horizontal plane is smaller than zero, and in this embodiment, in order to obtain the most comfortable driving and operation experience, the cab 130 is ensured to be always in the horizontal state by the real-time driving of the driving device 170, that is, the included angle between the cab 130 and the horizontal plane is ensured to be always equal to zero.

In order to realize the instant control of the driving device 170, in this embodiment, the excavator 100 further includes a detecting device (not shown in the figure) and a controller (not shown in the figure), the detecting device is disposed on the cab 130 and is used for detecting an included angle of the cab 130 relative to a horizontal plane, and the controller is electrically connected to the detecting device and the driving device 170 respectively and is used for controlling the driving device 170 to operate according to a detection result of the detecting device. In practical applications, the controller may be a control system built into the cab 130.

At the moment when the lower frame 110 is driven upward from a horizontal ground, the cab 130 tilts backward, the detection device detects that the included angle between the cab 130 and the horizontal plane is smaller than a zero value, and at the moment, the detection device sends a first signal to the controller. The controller controls the driving device 170 to drive in a forward direction when receiving the first signal.

It is understood that the driving device 170 using the hydraulic cylinder is connected with a pumping device capable of bi-directionally pumping hydraulic oil, and the pumping device may be a self-contained device in a hydraulic system of the excavator 100. When the controller receives the first signal, the controller sends a corresponding control signal to the pumping device, so that the pumping device pumps hydraulic oil to the hydraulic cylinder, the piston rod of the hydraulic cylinder is pushed to extend, the rotating frame 150 is further pushed to rotate in the forward direction, and the cab 130 is driven to rotate towards the direction which tends to be horizontal.

When the cab 130 is driven by the rotating frame 150 to rotate to be horizontal, that is, the included angle between the cab 130 and the horizontal plane is equal to a zero value, the detection device sends a second signal to the controller. The controller, upon receiving the second signal, controls the pumping device to stop to maintain the pressure in the hydraulic cylinder to maintain the cab 130 in a horizontal state. In this state, the operator in the cab 130 can normally drive and operate the vehicle, and can obtain an excellent working field of view, thereby ensuring smooth driving and working.

In addition, the cab 130 is kept horizontal during the work of traveling on an uphill slope or performing work on an uphill slope, and it is possible to prevent the excavator 100 from turning backward and causing a safety accident.

During the operation of the excavator 100 on the uphill stroke, the slope on which the lower frame 110 is located may be changed in real time due to the complexity of the operation environment. If the slope increases, the cab 130 is tilted backwards again and the detection device sends a first signal to the controller. The controller sends a corresponding control signal to the pumping device, so that the pumping device pumps hydraulic oil to the hydraulic cylinder again to drive the cab 130 to rotate to the horizontal again.

If the gradient is reduced, the cab 130 tilts forward from the horizontal state, and the included angle between the cab 130 and the horizontal plane is larger than a zero value, at this time, the detection device sends a third signal to the controller, and after receiving the third signal, the controller sends a corresponding control signal to the pumping device, so that the pumping device pumps oil reversely, hydraulic oil in the hydraulic cylinder is pumped out, the piston rod of the hydraulic cylinder retracts, namely, the driving device 170 drives reversely, and the cab 130 is driven to reset and rotate towards the horizontal state.

When the lower frame 110 is still in the uphill driving operation and the cab 130 rotates again to the horizontal level, that is, when the detection device detects that the included angle between the cab 130 and the horizontal level is zero, a second signal is sent to the controller, so that the driving device 170 is stopped.

When the detection device is driven in the reverse direction by the controller, the controller controls the driving device 170 to stop if the maximum stroke of the detection device for driving in the reverse direction is reached. For example, when the lower frame 110 is used for driving a vehicle downhill, in this case, the controller controls the driving device 170 to drive in reverse, so as to drive one end of the rotating frame 150 connected with the driving device 170 to rotate to contact with the supporting portion 111, and at this time, the driving device 170 reaches the maximum stroke of the reverse driving, and the controller controls the pumping device to stop, thereby realizing the pressure maintaining stop control of the driving device 170.

According to the excavator 100 provided by the embodiment, the adjustment of the included angle between the cab 130 and the horizontal plane is realized through the combination of the rotating frame 150 and the hydraulic cylinder, and the complex and changeable working environment can be met. And, simple structure, production and maintenance cost are all lower.

In addition, in the excavator 100 provided in this embodiment, the position state of the cab 130 is monitored in real time by the detection device, and the detection result is fed back to the controller, and the controller controls the driving device 170 to switch between the forward driving state, the shutdown pressure maintaining state, and the reverse driving state in real time according to the detection result of the detection device, so that the cab 130 can always keep horizontal in the uphill driving operation with complex and bumpy ground conditions, the driving comfort and the operation convenience of the driver are ensured, and the driver obtains a proper operation visual field, so that the driving and operation experience of the driver is greatly improved, and the smooth driving operation is ensured.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The excavator is characterized by comprising a lower frame (110), a cab (130), a rotating frame (150) and a driving device (170), wherein one end of the rotating frame (150) is rotatably arranged on the lower frame (110), the cab (130) is fixed on the rotating frame (150), the driving device (170) is rotatably arranged on the lower frame (110), the output end of the driving device (170) is rotatably connected with the other end of the rotating frame (150), and the driving device (170) is used for driving the cab (130) to rotate relative to the lower frame (110) in a vertical plane through the rotating frame (150).

2. The excavator of claim 1, wherein the cab (130) is parallel to the lower frame (110) when the end of the turret (150) connected to the drive unit (170) is in contact with the lower frame (110).

3. The excavator according to claim 1, wherein one end of the rotating frame (150) is provided with a bending member (151), and the rotating frame (150) is rotatably connected with the lower frame (110) through the bending member (151).

4. The excavator according to claim 3, wherein a support part (111) is convexly arranged on one side of the lower frame (110) connected with the bending part (151), and when one end of the rotating frame (150) far away from the bending part (151) is contacted with the support part (111), the cab (130) is parallel to the lower frame (110).

5. The excavator according to claim 1, wherein the driving means (170) is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is rotatably connected to the lower frame (110), and a piston rod of the hydraulic cylinder is rotatably connected to the other end of the rotating frame (150).

6. The excavator of claim 5 wherein the hydraulic cylinder is provided with an explosion-proof valve.

7. The excavator according to any one of claims 1 to 6, wherein the excavator (100) further comprises a detection device and a controller, the detection device is arranged on the cab (130) and used for detecting an included angle between the cab (130) and a horizontal plane, and the controller is respectively electrically connected with the detection device and the driving device (170) and used for controlling the driving device (170) to operate according to a detection result of the detection device.

8. The excavator of claim 7, wherein when the detection device detects that the included angle between the cab (130) and the horizontal plane is smaller than zero, a first signal is sent to the controller, so that the controller controls the driving device (170) to drive in the forward direction.

9. Excavator according to claim 7, characterized in that when the detection means detect that the angle between the cab (130) and the horizontal plane is equal to zero, a second signal is sent to the controller to cause the controller to control the drive means (170) to stop.

10. The excavator according to claim 7, wherein when the detection device detects that the included angle between the cab (130) and the horizontal plane is larger than a zero value, a third signal is sent to the controller, so that the controller controls the driving device (170) to drive reversely until the detection device detects that the included angle between the cab (130) and the horizontal plane is equal to the zero value or the other end of the rotating frame (150) is in contact with the lower frame (110).