Working machine and telescopic rotary table thereof

Abstract

The utility model provides an operation machine and a telescopic rotary table thereof, and the telescopic rotary table comprises a rotary table seat; the bottom end of the supporting arm is fixedly connected to the rotary table base, the supporting arm is obliquely arranged relative to the rotary table base, and the supporting arm is configured to be of a telescopic structure; the arm frame is connected to the upper end of the supporting arm in a swinging mode. When the operation machine is in the running state, the supporting arm is in the retraction position, so that the overall height of the arm support is reduced, the upper space, occupied by the arm support, of the operation machine is reduced, and the whole vehicle passing performance of the operation machine is enhanced. According to the technical scheme, the defects that in the prior art, an arm frame of an operation machine occupies a large space on the upper portion of a vehicle, and the trafficability of the whole vehicle is poor are overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to an operating machinery and a telescopic turntable thereof. Background Art

[0002] In the working machine, a turntable is arranged at the rear of the vehicle body, and a boom is arranged on the turntable. When the working machine is in the working state, the boom is unfolded, and the horizontal angle of the boom is adjusted by rotating the turntable. When the working machine is in the driving state, the boom is retracted to the turntable. Figure 1 As shown, due to the long length of the boom, after the boom is retracted to the turntable, it usually needs to occupy the upper space of the vehicle, resulting in poor passability of the entire vehicle and inability to pass through low spaces with restricted height. Utility Model Content

[0003] Therefore, the technical problem to be solved by the utility model is to overcome the defect that the boom of the working machine in the prior art occupies a large space above the vehicle, resulting in poor vehicle passability, thereby providing a working machine and a telescopic turntable thereof.

[0004] In order to solve the above problems, the utility model provides a telescopic turntable of an operating machinery, comprising: a turntable seat; a support arm, the bottom end of the support arm is fixedly connected to the turntable seat, and the support arm is inclined relative to the turntable seat, and the support arm is configured as a telescopic structure; and an arm frame, which is swingably connected to the upper end of the support arm.

[0005] Optionally, the support arm includes multiple arm sections, and adjacent arm sections are nested. The telescopic turntable also includes a first driving mechanism, which is arranged between adjacent arm sections and drives adjacent arm sections to extend or retract relative to each other.

[0006] Optionally, the first driving mechanism comprises a first driving cylinder, a cylinder body of the first driving cylinder is connected to one of the adjacent arm sections, and a push rod of the first driving cylinder is connected to another of the adjacent arm sections.

[0007] Optionally, the arm section is divided into two sections.

[0008] Optionally, the telescopic turntable further comprises a second driving mechanism, which is disposed between the support arm and the arm frame and drives the arm frame to swing relative to the support arm.

[0009] Optionally, the second driving mechanism includes a second driving cylinder, a cylinder body of the second driving cylinder is connected to the supporting arm, and a push rod of the second driving cylinder is connected to the arm frame.

[0010] Optionally, the arm is configured as a retractable structure or a foldable structure.

[0011] Optionally, a platform is provided at the end of the boom.

[0012] The utility model also provides an operating machine, comprising the telescopic turntable mentioned above.

[0013] Optionally, the working machine is an aerial work vehicle.

[0014] The utility model has the following advantages:

[0015] By using the technical solution of the utility model, when the working machine is in the driving state, the support arm is in the retracted position, so that the overall height of the boom is reduced, the upper space of the working machine occupied by the boom is reduced, and the vehicle passability of the working machine is enhanced. Therefore, the technical solution of the utility model solves the defect that the boom of the working machine in the prior art occupies a large space above the vehicle, resulting in poor vehicle passability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a working machine in the prior art is shown;

[0018] Figure 2 A schematic structural diagram of a telescopic turntable of a working machine according to the utility model is shown;

[0019] Figure 3 Shows Figure 2 A magnified schematic diagram of the middle part; and

[0020] Figure 4 Shows Figure 2 A schematic diagram of the structure of the telescopic turntable in another posture.

[0021] Description of reference numerals:

[0022] 10. Turntable seat; 20. Support arm; 21. Arm section; 30. Boom; 40. First drive mechanism; 50. Second drive mechanism; 60. Platform. DETAILED DESCRIPTION

[0023] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0026] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 2 and Figure 3 As shown, the embodiment of the telescopic turntable of the working machine according to the present application includes a turntable seat 10, a support arm 20 and an arm frame 30. The bottom end of the support arm 20 is fixedly connected to the turntable seat 10, and the support arm 20 is tilted relative to the turntable seat 10. The support arm 20 is configured as a telescopic structure. The arm frame 30 is swingably connected to the upper end of the support arm 20.

[0028] By using the technical solution of this embodiment, when the working machine is in the driving state, the support arm 20 is in the retracted position, so that the overall height of the boom 30 is reduced, the upper space of the working machine occupied by the boom 30 is reduced, and the vehicle passability of the working machine is enhanced. Therefore, the technical solution of this embodiment solves the defect that the boom of the working machine in the prior art occupies a large space above the vehicle, resulting in poor vehicle passability.

[0029] In this example, the turntable 10 is used to drive the support arm 20 and the arm frame 30 to rotate, and a slewing bearing can be provided between the bottom and the body of the engineering machine. The turntable 10 can rotate under the drive of an external driving mechanism (such as a hydraulic motor, an electric motor, etc.).

[0030] like Figure 2As shown, the function of the support arm 20 is to support the arm frame 30. The lower end of the support arm 20 is fixedly connected to the turntable seat 10, so when the turntable seat 10 rotates, it can drive the support arm 20 to rotate synchronously. The upper end of the support arm 20 is connected to the arm frame 30, thereby supporting the arm frame 30.

[0031] like Figure 2 As shown, the extension direction of the support arm 20 is an inclined direction, that is, the support arm 20 is inclined. The support arm 20 is inclined, which means that the extension direction thereof has an angle with the horizontal direction.

[0032] Furthermore, the support arm 20 is configured as a retractable structure, that is, the support arm 20 can be extended or shortened. When the working machine is in a working state, the support arm 20 can be in an extended state, thereby increasing the height of the boom 30. When the working machine is in a non-working state (and the working machine is in a driving state), the support arm 20 can be in a shortened state, at which time the height of the boom 30 can be reduced, reducing the upper space occupied by the boom 30 on the engineering machine, and enhancing the vehicle passability of the engineering machine.

[0033] like Figure 2 As shown, in the technical solution of this embodiment, the support arm 20 includes multiple arm sections 21, and adjacent arm sections 21 are nested. The telescopic turntable also includes a first driving mechanism 40, which is arranged between adjacent arm sections 21, and the first driving mechanism 40 drives the adjacent arm sections 21 to extend or retract relative to each other.

[0034] Specifically, when the first driving mechanism 40 drives the adjacent arm sections 21 to extend, the overall length of the support arm 20 can be increased. When the first driving mechanism 40 drives the adjacent arm sections 21 to retract, the overall length of the support arm 20 can be reduced.

[0035] like Figure 2 As shown, in the technical solution of this embodiment, the first driving mechanism 40 includes a first driving cylinder, a cylinder body of the first driving cylinder is connected to one of the adjacent arm sections 21, and a push rod of the first driving cylinder is connected to the other of the adjacent arm sections 21.

[0036] Specifically, when the push rod of the first driving cylinder extends, the adjacent arm sections 21 extend relatively, that is, the length of the support arm 20 is increased. When the push rod of the first driving cylinder retracts, the adjacent arm sections retract relatively, that is, the length of the support arm 20 is reduced.

[0037] Furthermore, in adjacent boom sections, the cylinder body of the first driving cylinder is arranged on the lower boom section 21 , and the push rod of the first driving cylinder is connected to the upper boom section 21 .

[0038] Optionally, the first driving cylinder may be an oil cylinder or an electric cylinder.

[0039] like Figure 2 Preferably, the arm section 21 in this embodiment is divided into two sections, that is, the support arm 20 includes an upper section and a lower section, and the first drive cylinder can drive the upper section to extend or retract relative to the lower section, thereby adjusting the overall length of the support arm 20 .

[0040] In some embodiments not shown, the support arm 20 may also include more than two arm sections 21, for example, including three arm sections 21, four arm sections 21, etc. And the number of first drive cylinders can be adaptively adjusted. For example, when the arm section 21 is three sections, the number of first drive cylinders can be two, and for another example, when the arm section 21 is four sections, the number of first drive cylinders can be three.

[0041] like Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the telescopic turntable also includes a second driving mechanism 50 , which is disposed between the support arm 20 and the arm frame 30 and drives the arm frame 30 to swing relative to the support arm 20 .

[0042] Specifically, the second driving mechanism 50 can drive the arm 30 to rotate around the support arm 20 , thereby adjusting the horizontal angle of the arm 30 .

[0043] When the working machine is working, the second driving mechanism 50 can drive the boom 30 to rotate, so that the angle between the boom 30 and the horizontal direction increases, thereby increasing the height of the end of the boom 30. Figure 2 As shown, when the operating machine is not working, the second driving mechanism 50 can drive the boom 30 to rotate so that the angle between the boom 30 and the horizontal direction is as small as possible, thereby reducing the space above the operating machine occupied by the boom 30.

[0044] like Figure 4 As shown, when the working machine is not working, the second driving mechanism 50 can drive the boom 30 to rotate, so that the extension direction of the boom 30 is horizontal, thereby minimizing the vertical space occupied by the boom 30.

[0045] like Figure 2 and Figure 3 As shown, in the technical solution of this embodiment, the second driving mechanism 50 includes a second driving cylinder, a cylinder body of the second driving cylinder is connected to the support arm 20 , and a push rod of the second driving cylinder is connected to the arm frame 30 .

[0046] by Figure 2 The support arm 20 is rotatably connected to the left end of the arm frame 30, and the right end of the arm frame 30 is the working end. Figure 3As shown, when the push rod of the second driving cylinder is extended, the right end of the boom 30 can be driven to swing upward, and the angle between the boom 30 and the horizontal direction can be increased, thereby raising the height of the working end of the boom 30. When the push rod of the second driving cylinder is retracted, the right end of the boom 30 can be driven to swing downward, and the angle between the boom 30 and the horizontal direction can be reduced, thereby raising the height of the working end of the boom 30.

[0047] Optionally, the second driving cylinder may be an oil cylinder or an electric cylinder.

[0048] Furthermore, depending on the type of the working vehicle, the boom 30 is configured as a telescopic structure or a folding structure. For example, the boom 30 can be a telescopic boom for aerial work, a telescopic boom for lifting, a folding boom for pumping, and the like.

[0049] In the technical solution of this embodiment, a platform 60 is provided at the end of the boom 30. The operator can stand on the platform, and then the second driving mechanism 50 drives the boom 30 to swing, and after the boom 30 is extended, the platform 60 is in a higher position, and the operator can perform aerial work at this time.

[0050] Of course, depending on the type of the working vehicle, the end of the boom 30 may also be provided with different structures. For example, the end of the boom 30 may be provided with a lifting hook, a concrete pumping pipe, etc.

[0051] The present application also provides a working machine. According to an embodiment of the working machine of the present application, the working machine includes the above-mentioned telescopic turntable.

[0052] Preferably, the working machine is an aerial work vehicle. The boom 30 of the aerial work vehicle is a retractable boom, and a platform 60 is provided at the end of the boom 30 .

[0053] Optionally, the working machine may also be a concrete pump truck, a crane, and the like.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A telescopic turntable of a working machine, characterized in that: include: Turntable seat (10); A support arm (20), the bottom end of the support arm (20) is fixedly connected to the turntable seat (10), and the support arm (20) is arranged to be inclined relative to the turntable seat (10), and the support arm (20) is configured as a telescopic structure; The arm bracket (30) is swingably connected to the upper end of the support arm (20).

2. The telescopic turntable according to claim 1, characterized in that: The support arm (20) comprises a plurality of arm sections (21), and adjacent arm sections (21) are nested. The telescopic turntable further comprises a first driving mechanism (40), and the first driving mechanism (40) is arranged between adjacent arm sections (21). The first driving mechanism (40) drives adjacent arm sections (21) to extend or retract relative to each other.

3. The telescopic turntable according to claim 2, characterized in that: The first driving mechanism (40) comprises a first driving cylinder, a cylinder body of the first driving cylinder is connected to one of the adjacent arm sections (21), and a push rod of the first driving cylinder is connected to the other of the adjacent arm sections (21).

4. The telescopic turntable according to claim 3, characterized in that: The arm section (21) is divided into two sections.

5. The telescopic turntable according to claim 1, characterized in that: The telescopic turntable further comprises a second driving mechanism (50), wherein the second driving mechanism (50) is arranged between the support arm (20) and the arm frame (30) and drives the arm frame (30) to swing relative to the support arm (20).

6. The telescopic turntable according to claim 5, characterized in that: The second driving mechanism (50) comprises a second driving cylinder, a cylinder body of the second driving cylinder is connected to the supporting arm (20), and a push rod of the second driving cylinder is connected to the arm frame (30).

7. The telescopic turntable according to any one of claims 1 to 6, characterized in that: The arm (30) is configured as a telescopic structure or a foldable structure.

8. The telescopic turntable according to any one of claims 1 to 6, characterized in that: A platform (60) is provided at the end of the arm (30).

9. A working machine, characterized in that: It comprises the telescopic turntable as claimed in any one of claims 1 to 8.

10. The working machine according to claim 9, characterized in that: The operating machine is an aerial work vehicle.

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