Control cabin displacement system for crane

Abstract

The utility model discloses a control cabin displacement system for a crane, which comprises an engineering machinery main body and a control cabin body, the control cabin body is movably arranged on one side of the engineering machinery main body, and a control cabin displacement mechanism is arranged between the engineering machinery main body and the control cabin body; the control cabin displacement mechanism comprises a connecting rod frame, the two ends of the connecting rod frame are hinged to the engineering machine body and the control cabin body respectively, and a first drive telescopic rod and a second drive telescopic rod are installed at the two ends of the connecting rod frame respectively. According to the utility model, by adopting the arrangement form of the double hydraulic oil cylinders, the flexible movement of the control cabin body in the horizontal plane is respectively realized, the current situations of overhigh cost and complicated mechanism arrangement are solved by adopting a brand new arrangement form on the premise of realizing the functional requirements of the mechanism, and a locking structure is arranged between the engineering machinery main body and the control cabin body, so that the control cabin is convenient to use. The degree of freedom is limited, and the control cabin body is prevented from laterally swinging, so that the safety and reliability of traction between the engineering machinery main body and the control cabin body are ensured.

Description

Technical Field

[0001] The utility model relates to the field of crane equipment, in particular to a crane control room displacement system. Background Art

[0002] Construction machinery is a vital component of the equipment manufacturing industry. In recent years, with the continuous expansion of construction projects, its application has become increasingly widespread. Construction machinery, particularly cranes, is inherently more complex than other types of machinery. Furthermore, to meet the increasing demands for larger-scale lifting and installation projects, the demand for cranes, particularly large cranes, is increasing.

[0003] The primary function of the cab positioning system is to adjust the cab's position and height with multiple degrees of freedom, thereby enhancing visibility and safety. Furthermore, due to legal and regulatory constraints, the crane's overall dimensions must meet these requirements. The cab's positioning mechanism must be able to perform complex movements, including rotation, lifting, and pitching, within a limited space. When the crane is relocating or traveling on the road, the cab and its positioning mechanism must be fixed relative to the turntable, limiting all degrees of freedom and preventing the cab from swaying, ensuring the safety and reliability of the cab and its positioning system.

[0004] The existing methods for realizing the rotation of the control room displacement system in the horizontal plane include a four-bar linkage method, a displacement cylinder mechanism method, and a hydraulic cylinder + displacement cylinder combination mechanism method, which are specifically as follows:

[0005] Four-bar linkage mechanism Figure 5 As shown, its characteristic is that the layout of the mechanism is realized through the characteristics of a four-bar linkage, and the drive is realized by a hydraulic cylinder, which simultaneously realizes the horizontal movement of the displacement system and the control room body, and ultimately realizes the rotation of the control room body at different positions. However, during the overall movement of the mechanism and the control room body, the area swept is relatively large, which cannot be realized when working in a small space, and has limitations.

[0006] Displacement cylinder mechanism Figure 6 As shown, its characteristic is that two displacement cylinders realize the rotation of the control room body displacement system and the control room body respectively, and finally realize the rotation of the control room body in different positions. Although the displacement cylinder mechanism method solves the problem of the four-bar mechanism, it can minimize the swept area while achieving the function, and can realize the operation of any position between the control room body and the displacement system. However, its disadvantages are that the mechanism layout is complicated and the cost of the displacement cylinder is relatively high, which cannot realize the economical whole machine layout.

[0007] Hydraulic cylinder + displacement cylinder combination mechanism Figure 7As shown, its characteristic is that the cab body displacement system is driven by a displacement cylinder, and the displacement of the cab body relative to the cab body system is driven by a hydraulic cylinder, ultimately achieving rotation of the cab body in different positions. While the function is achieved, the drive of the cab body relative to the displacement system is replaced by a hydraulic cylinder. Although this reduces costs, the remaining set of displacement cylinders still has complex mechanical layout and relatively high cost, making it impossible to achieve an economical overall machine layout.

[0008] Aiming at the deficiencies of the prior art, the utility model provides a crane control room displacement system. Utility Model Content

[0009] The technical problem to be solved by the present invention is to provide a control room displacement system for a crane in view of the deficiencies of the above-mentioned prior art, and to provide a brand-new layout form, which subverts the traditional concept and is characterized by low cost, simple structure and comprehensive functions; it adopts the layout form of double hydraulic cylinders to realize the flexible movement of the control room body in the horizontal plane, and solves the current situation of high cost and complex mechanism layout under the premise of achieving the functional requirements of the mechanism.

[0010] The technical solution adopted in this utility model is:

[0011] A control cab displacement system for a crane comprises an engineering machine body and a control cab body, wherein the control cab body is movably arranged on one side of the engineering machine body, and a control cab displacement mechanism is installed between the engineering machine body and the control cab body;

[0012] The control room displacement mechanism includes a connecting rod frame, the two ends of the connecting rod frame are respectively hinged to the engineering machinery body and the control room body, the two ends of the connecting rod frame are respectively installed with a first driving telescopic rod and a second driving telescopic rod, the two ends of the first driving telescopic rod are respectively hinged to the control room body and the connecting rod frame, and the two ends of the second driving telescopic rod are respectively hinged to the engineering machinery body and the connecting rod frame. Through the telescopic adjustment of the first driving telescopic rod and the second driving telescopic rod, the position of the control room body behind the engineering machinery body and the side of the engineering machinery body can be switched.

[0013] Preferably, a lug plate is fixedly connected to one side of the engineering machinery body, and a combination frame is installed at one end of the control room body.

[0014] Preferably, a first rotating shaft and a second rotating shaft are respectively installed at both ends of the connecting rod frame, and the first rotating shaft and the second rotating shaft are rotatably connected to the combined frame and the ear plate respectively.

[0015] Preferably, the assembly frame is detachably connected to the control room body.

[0016] Preferably, a U-shaped groove plate is fixedly connected to the rear of the engineering machinery body, and a vertical plate matching the U-shaped groove plate is fixedly connected to the side of the control room body, and coaxially distributed pin holes are provided on the U-shaped groove plate and the vertical plate, and pins are inserted into the relative multiple pin holes.

[0017] Preferably, the first drive telescopic rod and the second drive telescopic rod are both configured to be driven by a hydraulic cylinder, and the connecting ends driven by the hydraulic cylinder are provided with a hydraulic mechanism for providing kinetic energy.

[0018] The utility model has the following beneficial effects:

[0019] 1. By setting two driving hydraulic cylinders, one driving hydraulic cylinder is used to realize the power source for the rotation of the cab body displacement system assembly around the main body of the engineering machinery, and the other driving hydraulic cylinder is used to realize the power source for the rotation of the cab body relative to the displacement system itself. The dual hydraulic cylinder layout is adopted to realize the flexible movement of the cab body in the horizontal plane. With a new layout, the current situation of high cost and complex mechanism layout is solved while realizing the functional requirements of the mechanism. A locking structure is provided between the main body of the engineering machinery and the cab body to limit their freedom and prevent the cab body from swinging sideways, so as to ensure the safety and reliability of the traction between the main body of the engineering machinery and the cab body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a top view of the arrangement of the engineering machinery body and the control room body in the first working state in the utility model;

[0021] Figure 2 This is a front view of the arrangement of the engineering machinery body and the control room body in the first working state in the utility model;

[0022] Figure 3 This is a top view of the arrangement of the engineering machinery body and the control room body in the second working state of the utility model;

[0023] Figure 4 This is a front view of the arrangement of the engineering machinery body and the control room body in the second working state in the utility model;

[0024] Figure 5 This is a diagram of the structural arrangement of a four-bar linkage provided in the prior art;

[0025] Figure 6 This is a diagram showing the structural arrangement of a displacement cylinder mechanism provided in the prior art;

[0026] Figure 7 This is a structural layout diagram of the hydraulic cylinder + displacement cylinder mechanism provided in the prior art.

[0027] Among them are:

[0028] Engineering machinery body-1; control room body-2; control room displacement mechanism-3; ear plate-4; assembly frame-5; U-shaped groove plate-6; vertical plate-7; pin-8;

[0029] Connecting rod frame 31; first driving telescopic rod 32; second driving telescopic rod 33; first rotating shaft 34; second rotating shaft 35. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below with reference to the accompanying drawings and specific preferred embodiments.

[0031] In the description of the present invention, it should be understood that the terms "left side," "right side," "upper," "lower," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Terms such as "first" and "second" do not indicate the importance of a component and therefore should not be construed as limiting the present invention. The specific dimensions used in this embodiment are merely for illustrative purposes and do not limit the scope of protection of the present invention.

[0032] like Figure 1-4 As shown, a control cab displacement system for a crane includes an engineering machine body 1 and a control cab body 2. The control cab body 2 is movably arranged on one side of the engineering machine body 1. A control cab displacement mechanism 3 is installed between the engineering machine body 1 and the control cab body 2.

[0033] The control room shifting mechanism 3 includes a connecting rod frame 31, the ends of the connecting rod frame 31 are respectively hinged to the engineering machine body 1 and the control room body 2, and the ends of the connecting rod frame 31 are respectively installed with a first driving telescopic rod 32 and a second driving telescopic rod 33. The ends of the first driving telescopic rod 32 are respectively hinged to the control room body 2 and the connecting rod frame 31, and the ends of the second driving telescopic rod 33 are respectively hinged to the engineering machine body 1 and the connecting rod frame 31. Through the telescopic adjustment of the first driving telescopic rod 32 and the second driving telescopic rod 33, the position of the control room body 2 can be switched between the rear of the engineering machine body 1 and the side of the engineering machine body 1;

[0034] Due to limited space, this application takes cranes as an example to discuss in detail the control room displacement system for cranes. However, this application can be applied and extended to other engineering machinery hosts, and its promotion and application should be within the scope of protection of this patent; the mechanism layout can be extended to a series of engineering machinery hosts, and has the characteristics of high efficiency, simple mechanism layout, and high degree of humanization.

[0035] Specifically, a lug plate 4 is fixedly connected to one side of the engineering machinery body 1 , and a combination frame 5 is installed at one end of the control room body 2 .

[0036] Specifically, a first rotating shaft 34 and a second rotating shaft 35 are respectively installed at both ends of the connecting rod frame 31. The first rotating shaft 34 and the second rotating shaft 35 are respectively rotatably connected to the combined frame 5 and the ear plate 4, leaving space for movement to avoid extrusion and collision between structures, extend the service life of the device, and improve the safety of mechanical operation.

[0037] Specifically, the assembly frame 5 is detachably connected to the control room body 2, which facilitates installation and disassembly maintenance and reduces maintenance costs.

[0038] Specifically, a U-shaped groove plate 6 is fixedly connected to the rear of the engineering machinery body 1, and a vertical plate 7 matching the U-shaped groove plate 6 is fixedly connected to the side of the control room body 2, and coaxially distributed pin holes are provided on the U-shaped groove plate 6 and the vertical plate 7, and pins 8 are inserted into the relative multiple pin holes. When the crane is transferred or traveling on the road, the control room body 2 and the control room displacement mechanism 3 need to be fixed relative to the turntable to limit all their degrees of freedom and prevent the control room body 2 from swinging sideways, so as to ensure the safety and reliability of traction between the engineering machinery body 1 and the control room body 2.

[0039] Specifically, the first drive telescopic rod 32 and the second drive telescopic rod 33 are both configured to be driven by a hydraulic cylinder, and the connecting end of the hydraulic cylinder drive is provided with a hydraulic mechanism for providing kinetic energy. In the hydraulic cylinder drive form, the hydraulic cylinder used is a single-stage cylinder. According to the characteristics of the hydraulic cylinder, it can also be driven by a multi-stage cylinder.

[0040] The working principle of this utility model:

[0041] In the initial state where the cab body 2 is located behind the engineering machinery main body 1, pull out the pin 8, then control the output end of the first drive telescopic rod 32 to extend, and the cab body 2 rotates around the second rotation axis 35 from the rear of the engineering machinery main body 1 relative to the cab displacement mechanism 3, control the output end of the second drive hydraulic cylinder 33 to extend, and the cab displacement mechanism 3 rotates around the first rotation axis 34 from the side of the engineering machinery main body 1, and finally reaches the working position on the side of the engineering machinery; in the initial state where the cab body 2 is located on one side of the engineering machinery main body 1, adjust the cab body 2 to the rear position of the engineering machinery main body 1, reverse the above steps, and finally insert the pin 8 into the corresponding pin holes on the U-shaped groove plate 6 and the vertical plate 7 to achieve locking.

[0042] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A control room displacement system for a crane, comprising an engineering machine body (1) and a control room body (2), wherein the control room body (2) is movably arranged on one side of the engineering machine body (1), and is characterized in that: A control room displacement mechanism (3) is installed between the engineering machinery main body (1) and the control room body (2); The control room displacement mechanism (3) comprises a connecting rod frame (31), the two ends of the connecting rod frame (31) are respectively hinged to the engineering machinery body (1) and the control room body (2), the two ends of the connecting rod frame (31) are respectively installed with a first driving telescopic rod (32) and a second driving telescopic rod (33), the two ends of the first driving telescopic rod (32) are respectively hinged to the control room body (2) and the connecting rod frame (31), and the two ends of the second driving telescopic rod (33) are respectively hinged to the engineering machinery body (1) and the connecting rod frame (31), and the first driving telescopic rod (32) and the second driving telescopic rod (33) are respectively adjusted to telescope, so that the control room body (2) can be switched between the rear of the engineering machinery body (1) and the side of the engineering machinery body (1).

2. The crane control cab displacement system according to claim 1, characterized in that: A lug plate (4) is fixedly connected to one side of the engineering machinery body (1), and a combination frame (5) is installed at one end of the control room body (2).

3. The crane control cab displacement system according to claim 2, characterized in that: A first rotating shaft (34) and a second rotating shaft (35) are respectively installed at both ends of the connecting rod frame (31), and the first rotating shaft (34) and the second rotating shaft (35) are respectively rotatably connected to the combined frame (5) and the ear plate (4).

4. The crane control cab displacement system according to claim 2, characterized in that: The combined frame (5) is detachably connected to the control room body (2).

5. The crane control cab displacement system according to claim 1, characterized in that: A U-shaped groove plate (6) is fixedly connected to the rear of the engineering machinery body (1), and a vertical plate (7) matching the U-shaped groove plate (6) is fixedly connected to the side of the control room body (2), and coaxially distributed pin holes are provided on the U-shaped groove plate (6) and the vertical plate (7), and pins (8) are inserted into the corresponding multiple pin holes.

6. The crane control cab displacement system according to claim 1, characterized in that: The first driving telescopic rod (32) and the second driving telescopic rod (33) are both configured to be driven by a hydraulic cylinder, and the connecting ends driven by the hydraulic cylinders are provided with a hydraulic mechanism for providing kinetic energy.

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