Boom for crane, boom control system and crane

Abstract

The utility model relates to the field of engineering machinery, and discloses an arm support for a crane, an arm support control system and the crane, the arm support comprises a main arm and a camera assembly, the camera assembly is arranged at the front end of the main arm and comprises a camera body and a camera driving mechanism, the camera body is hinged to the main arm, and the camera driving mechanism is arranged at the front end of the main arm. The camera driving mechanism can drive the camera body to swing around the hinge point, so that a lens of the camera body can swing upwards to the front end facing the main arm. According to the boom for the crane, the shooting angle of the camera body can be adjusted to enlarge the monitoring range, the monitoring blind area of the boom is reduced, and the operation safety is improved.

Description

Technical Field

[0001] The present application relates to engineering machinery, and in particular to a boom for a crane, a boom control system and a crane. Background Art

[0002] During the lifting operation of a telescopic boom crane, the boom length and boom angle can change. When the boom is extended to a far position, it is difficult for the driver to observe the load status under the boom. At present, for the sake of operation safety and lifting accuracy, cameras are generally installed on the head of the boom, so that the load status under the boom can be monitored in real time, so as to find the correct position for lifting. However, existing cameras are all installed on the boom in a suspended form, and their lenses always keep shooting downwards under the action of their own gravity, resulting in a large monitoring blind spot, which is difficult to meet the observation needs of off-angle operations. Summary of the invention

[0003] In response to at least one of the above-mentioned defects or shortcomings of the prior art, the present application provides a boom, a boom control system and a crane for a crane, which can adjust the shooting angle of the camera body to expand the monitoring range, thereby achieving the purpose of reducing the boom monitoring blind spot and improving operation safety.

[0004] In order to achieve the above-mentioned object, the first aspect of the present application provides a boom for a crane, the boom comprising:

[0005] Main boom; and

[0006] The camera assembly is arranged at the front end of the main arm and includes a camera body and a camera driving mechanism. The camera body is hinged to the main arm, and the camera driving mechanism can drive the camera body to swing around the hinge point so that the lens of the camera body can swing up to the front end of the main arm.

[0007] In some embodiments, the arm support further includes a sub-arm detachably connected to a front end of the main arm, and the camera driving mechanism is used to drive the camera body to swing toward the sub-arm to photograph the front end of the sub-arm.

[0008] In some embodiments, the camera body is hinged to the outer peripheral wall of the main arm, and the camera driving mechanism is detachably connected to the camera body;

[0009] When the main arm is not connected to the auxiliary arm, the camera driving mechanism is disconnected from the camera body.

[0010] In some embodiments, the camera driving mechanism includes a power device and a transmission structure, the power device is fixed to the front end of the main arm, and the transmission structure is arranged between the camera body and the power device and is used to drive the camera body to swing under the drive of the power device.

[0011] In some embodiments, a swing rod is provided at the rear end of the camera body, and the transmission structure includes a transmission connecting rod. The middle part of the swing rod is hinged to the front end of the main arm and the outer end is hinged to one end of the transmission connecting rod.

[0012] In some embodiments, the power device includes a linear telescopic device arranged along the length direction of the main arm.

[0013] In some embodiments, the linear telescopic device includes a cylinder portion and a telescopic rod telescopically movably inserted into the cylinder portion, and the telescopic end of the telescopic rod is hinged to an end of the transmission connecting rod that is not connected to the swing rod.

[0014] In some embodiments, the linear telescopic device is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

[0015] A second aspect of the present application provides a boom control system, which includes a boom luffing cylinder, a controller and the above-mentioned boom for a crane, wherein the boom luffing cylinder is used to drive the main arm to swing and change its luffing, and the controller communicates with the boom luffing cylinder and the camera driving mechanism respectively, and is configured to control the camera driving mechanism to drive the camera body to swing to a preset shooting angle when controlling the boom luffing cylinder to drive the main arm to swing and change its luffing.

[0016] A third aspect of the present application provides a crane, comprising the above-mentioned boom control system.

[0017] Through the above technical scheme, the boom for the crane of the present application installs the camera assembly on the outer peripheral wall of the main arm, and the camera body is movably arranged, and then the camera driving mechanism is used to drive the camera body to swing up and down relative to the main arm, so that the shooting angle of the camera body can be adjusted in a wide range, which is beneficial to expand the monitoring range, reduce the blind spot of the boom monitoring and improve the safety of operation, especially by driving the camera body to swing upward to the front end of the main arm, so as to realize the monitoring of the hook located in front of the main arm and its operation condition. When a sub-arm is arranged at the front end of the main arm, the operating condition of the front end of the sub-arm can also be monitored by adjusting the camera body.

[0018] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0020] Figure 1 A schematic diagram of a boom for a crane in a specific implementation manner of the present application;

[0021] Figure 2 It is a schematic diagram of a boom in which the auxiliary boom and the main boom are coaxial in a specific embodiment of the present application;

[0022] Figure 3 It is a schematic diagram of a boom in which the auxiliary arm and the main arm form a certain angle in a specific embodiment of the present application;

[0023] Figure 4 It is a schematic diagram of a boom without a secondary arm installed in a specific implementation manner of the present application.

[0024] Description of Reference Numerals

[0025] 1 Main arm 2 Camera body

[0026] 3 Camera drive mechanism 4 Auxiliary arm

[0027] 201 swing rod 301 power device

[0028] 302 transmission connecting rod 3011 linear telescopic device

[0029] 3011a Cylinder part 3011b Telescopic rod DETAILED DESCRIPTION

[0030] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0031] The present application will be described in detail below with reference to the accompanying drawings in conjunction with exemplary embodiments.

[0032] like Figures 1 to 3 As shown, the first exemplary embodiment of the present application provides a boom for a crane, which includes a main arm 1 and a camera assembly. The camera assembly is integrally arranged at the front end of the main arm 1, and mainly includes a camera body 2 and a camera driving mechanism 3, wherein the camera body 2 is movably arranged on the main arm 1, and the camera driving mechanism 3 can drive the camera body 2 to swing up and down relative to the main arm 1, so that the lens of the camera body 2 can swing up to the front end of the main arm 1.

[0033] It can be seen from the above technical solution that the boom for the crane of this exemplary embodiment installs the camera assembly on the outer peripheral wall of the main arm 1, and the camera body 2 is movably arranged, and then uses the camera driving mechanism to drive the camera body 2 to swing up and down relative to the main arm 1, so that the shooting angle of the camera body 2 can be adjusted in a wide range in the vertical plane, which is beneficial to expand the monitoring range, reduce the blind spot of the boom monitoring and improve the safety of operation, especially by driving the camera body 2 to swing upward to the front end of the main arm 1, so as to realize real-time monitoring of the lifting condition in front of the main arm 1, thereby ensuring high accuracy of lifting control.

[0034] Reference Figure 1 The arm frame further includes a secondary arm 4 detachably connected to the front end of the main arm 1. When the secondary arm 4 is connected to the front end of the main arm 1, the camera driving mechanism 3 can drive the camera body 2 to swing toward the secondary arm 4 to shoot the front end of the secondary arm 4. Figure 2 In the embodiment shown, the auxiliary arm 4 is coaxially arranged with the main arm 1, and the camera driving mechanism 3 can drive the camera body 2 to swing to a state parallel to the main arm 1, so as to shoot the front end of the auxiliary arm 4. Figure 3 In the embodiment shown, the auxiliary arm 4 is arranged at a certain angle with the main arm 1, and accordingly, the camera driving mechanism 3 can drive the camera body 2 to swing to a state parallel to the auxiliary arm 4, so as to shoot the front end of the auxiliary arm 4.

[0035] When the auxiliary arm 4 is removed from the front end of the main arm 1, refer to Figure 4 The camera driving mechanism 3 is disconnected from the camera body 2, so that the camera body 2 relies on its own gravity to shoot downward toward the main arm 1 to shoot the operation status of the hook located below the boom.

[0036] Specifically, refer to Figures 1 to 3 The camera body 2 is hinged to the outer peripheral wall of the main arm 1, and the camera driving mechanism 3 is detachably connected to the camera body 2. For example, the camera driving mechanism 3 and the camera body 2 can be connected through a pin. When the camera driving mechanism 3 needs to be disconnected from the camera body 2, it is only necessary to pull out the aforementioned pin. It should be noted that the camera body 2 is eccentrically hinged to the main arm 1. Therefore, when the camera driving mechanism 3 is disconnected from the camera body 2, the camera body 2 can maintain a vertical state under the action of its own gravity, and at this time, the lens of the camera body 2 can face the bottom of the main arm 1 for shooting.

[0037] In an optional or preferred embodiment, the camera driving mechanism 3 includes a power device 301 and a transmission structure. The power device 301 is fixed to the outer peripheral wall of the main arm 1. The transmission structure is arranged between the camera body 2 and the power device 301 and is used to drive the camera body 2 to swing under the drive of the power device 301.

[0038] Specifically, refer to Figure 1 and Figure 2 A swing rod 201 is provided at the rear end of the camera body 2, and the transmission structure includes a transmission connecting rod 302. The middle part of the swing rod 201 is hinged to the outer peripheral wall of the main arm 1 and the outer end is hinged to one end of the transmission connecting rod 302.

[0039] Furthermore, the power device 301 includes a linear telescopic device 3011 arranged along the length direction of the main arm 1. The linear telescopic device 3011 includes a cylinder portion 3011a and a telescopic rod 3011b telescopically inserted into the cylinder portion 3011a, and the telescopic end of the telescopic rod 3011b is hinged to the end of the transmission link 302 that is not connected to the swing rod 201. Therefore, when the cylinder portion 3011a drives the telescopic rod 3011b to extend, the telescopic rod 3011b can drive the transmission link 302 to swing upward, thereby driving the swing rod 201 to swing downward in the opposite direction, so that the camera body 2 faces the bottom of the main arm 1 to shoot. On the contrary, when the cylinder portion 3011a drives the telescopic rod 3011b to shorten, the telescopic rod 3011b can drive the transmission link 302 to swing downward, thereby driving the swing rod 201 to swing upward in the opposite direction, so that the camera body 2 faces the front end of the main arm 1 or the front end of the auxiliary arm 1 to shoot.

[0040] It should be noted that in this embodiment, the transmission structure is a single-link structure (i.e., one transmission link 302 is provided). In other embodiments, the transmission structure may also be a multi-link structure (i.e., multiple transmission links 302 are provided). This application does not limit this, and it only needs to meet the conditions for effective transmission.

[0041] In an optional or preferred embodiment, the linear telescopic device 3011 is an electric push rod. The electric push rod has high displacement accuracy and fast response speed, which is conducive to achieving accurate control of the camera body 2. In other embodiments, the linear telescopic device 3011 can also be a power device such as a hydraulic cylinder or a pneumatic cylinder, which is not limited in this embodiment.

[0042] In one embodiment, a transmission structure may not be provided between the camera body 2 and the power device 301. In other words, the camera body 2 may be directly driven by the power device 301. For example, the telescopic rod 3011b of the power device 301 is hinged to the outer end of the swing rod 201, and the cylinder part 3011a of the power device 301 is correspondingly hinged to the outer peripheral wall of the main arm 1, so that the cylinder part 3011a can swing synchronously when the telescopic rod 3011b is driven. In this way, when the telescopic rod 3011b is extended, the swing rod 201 can be driven to swing downward, so that the camera body 2 is directed downward to shoot, and vice versa, the camera body 2 is directed toward the front end of the main arm 1 or the front end of the auxiliary arm 1 to shoot.

[0043] The second exemplary embodiment of the present application provides a boom control system, which includes a boom luffing cylinder, a controller and the above-mentioned boom for a crane, wherein the boom luffing cylinder is used to drive the main arm 1 to swing and change its amplitude, and the controller communicates with the boom luffing cylinder and the camera driving mechanism 3 respectively, and is configured to control the camera driving mechanism 3 to drive the camera body 2 to swing to a preset shooting angle when the boom luffing cylinder drives the main arm 1 to swing and change its amplitude. Among them, the preset shooting angle can be set according to the amplitude change angle of the main arm 1. For example, when the controller controls the boom luffing cylinder to drive the main arm 1 to swing up, in order to keep the camera body 2 facing the bottom of the main arm 1 for shooting, the controller can control the camera driving mechanism 3 to drive the camera body 2 to swing down so that its lens always remains downward. Of course, the controller can also be set to control the camera driving mechanism 3 to drive the camera body 2 to swing until the lens faces the target object, thereby realizing that the lens automatically tracks the target object for shooting. In addition, the boom control system of this exemplary embodiment should have all the technical effects brought by the above-mentioned boom for a crane, so they are not repeated here one by one.

[0044] The third exemplary embodiment of the present application provides a crane, which includes the above-mentioned boom control system. Obviously, the crane of this exemplary embodiment has all the technical effects brought by the above-mentioned boom control system, so it will not be repeated here.

[0045] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0046] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like 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, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0047] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0048] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A boom for a crane, characterized in that: The arm frame comprises: Main boom (1); and A camera assembly is arranged at the front end of the main arm (1), and comprises a camera body (2) and a camera driving mechanism (3), wherein the camera body (2) is hinged to the main arm (1), and the camera driving mechanism (3) is capable of driving the camera body (2) to swing around a hinge point so that the lens of the camera body (2) can swing upward to face the front end of the main arm (1).

2. The boom for a crane according to claim 1, characterized in that: The arm support further comprises a secondary arm (4) detachably connected to the front end of the main arm (1), and the camera driving mechanism (3) is used to drive the camera body (2) to swing toward the secondary arm (4) to photograph the front end of the secondary arm (4).

3. The boom for a crane according to claim 2, characterized in that: The camera driving mechanism (3) is detachably connected to the camera body (2); When the main arm (1) is not connected to the auxiliary arm (4), the camera driving mechanism (3) is disconnected from the camera body (2).

4. The boom for a crane according to claim 1, characterized in that: The camera driving mechanism (3) comprises a power device (301) and a transmission structure, wherein the power device (301) is fixed to the front end of the main arm (1), and the transmission structure is arranged between the camera body (2) and the power device (301) and is used to drive the camera body (2) to swing under the drive of the power device (301).

5. The boom for a crane according to claim 4, characterized in that: A swing rod (201) is provided at the rear end of the camera body (2), and the transmission structure comprises a transmission connecting rod (302). The middle part of the swing rod (201) is hinged to the front end of the main arm (1), and the outer end is hinged to one end of the transmission connecting rod (302).

6. The boom for a crane according to claim 5, characterized in that: The power device (301) comprises a linear telescopic device (3011) arranged along the length direction of the main arm (1).

7. The boom for a crane according to claim 6, characterized in that: The linear telescopic device (3011) comprises a cylinder portion (3011a) and a telescopic rod (3011b) telescopically movably inserted into the cylinder portion (3011a), and the telescopic end of the telescopic rod (3011b) is hinged to an end of the transmission connecting rod (302) that is not connected to the swing rod (201).

8. The boom for a crane according to claim 7, characterized in that: The linear telescopic device (3011) is a hydraulic cylinder, a pneumatic cylinder or an electric push rod.

9. A boom control system, characterized in that: The boom control system comprises a boom luffing cylinder, a controller and a boom for a crane according to any one of claims 1 to 8, wherein the boom luffing cylinder is used to drive the main arm (1) to swing and change its amplitude, and the controller communicates with the boom luffing cylinder and the camera driving mechanism (3) respectively, and is configured to control the camera driving mechanism (3) to drive the camera body (2) to swing to a preset shooting angle when controlling the boom luffing cylinder to drive the main arm (1) to change its amplitude.

10. A crane, characterized in that: The crane comprises a boom control system according to claim 9.

Images