Steering device for floating transition excavating equipment

Abstract

The utility model discloses a steering device for floating excavation equipment, and relates to the technical field of steering devices for excavators, the steering device comprises a fixed chassis and a reversing frame, a support is fixedly installed above the fixed chassis, the reversing frame is fixed on the inner side of the support, and annularly distributed balls are installed on the upper surface of the support. And a limiting mechanism is mounted on the inner side of the fixed chassis. According to the steering device for the floating excavation equipment, when steering is not needed, a bidirectional electric push rod extends towards the two ends to push rolling wheels, the rolling wheels roll on the inclined face of an extrusion block, the extrusion block is extruded to push a connecting rod upwards and extrude a buffer spring, then the connecting rod pushes a limiting frame upwards, and the limiting frame limits the position of a fluted disc; according to the steering device for the floating-transition excavating equipment, the situation that when a hydraulic system of the floating-transition excavating equipment breaks down, the gear is loosened can be prevented, and the working stability of the steering device for the floating-transition excavating equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steering devices for excavators, and particularly to a steering device for a floating excavation equipment. Background Technique

[0002] Floating excavation equipment is a kind of equipment specially used for underwater excavation and engineering operations, usually used in deep water areas or environments where underwater operations are required. Their main feature is the ability to maintain stability underwater and effectively carry out excavation and engineering operations. Among them, the steering device for floating excavation equipment is to facilitate the stable steering of floating excavation equipment to meet the operation requirements in different directions.

[0003] However, the existing steering devices for floating excavation equipment have the following disadvantages. Since the floating excavation equipment is connected to the steering device through gears, when the floating excavation equipment does not need to steer, there is no structure for re-limiting the gears. The hydraulic system for limiting the gears of the floating excavation equipment may malfunction, resulting in the gears being prone to loosening and rotating, affecting the working stability of the floating excavation equipment. Therefore, the existing steering devices for floating excavation equipment need to be improved. Content of the Utility Model

[0004] The purpose of the utility model is to provide a steering device for a floating excavation equipment, so as to solve the problem in the above background technique that the existing steering devices for floating excavation equipment on the current market do not have a structure for re-limiting the gears when not steering, resulting in the gears being prone to loosening and rotating, affecting the working stability of the floating excavation equipment.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A steering device for a floating excavation equipment, including a fixed chassis and a slewing frame. A support is fixedly installed above the fixed chassis, the slewing frame is fixed inside the support, a ring of evenly distributed balls is installed on the upper surface of the support, a limiting mechanism is installed inside the fixed chassis, a toothed disc is meshed and connected inside the slewing frame, and one side of the limiting mechanism is connected to the toothed disc.

[0006] Preferably, the limiting mechanism includes a limiting frame, a connecting rod, a pressing block, a buffer spring and a bidirectional electric push rod, and the bidirectional electric push rod is installed in the built-in groove of the fixed chassis.

[0007] Preferably, the connecting rod slidably penetrates through the upper part of the fixed chassis, and the limiting frame is connected above the connecting rod.

[0008] Preferably, one side of the limiting frame is meshed and connected with the toothed disc, and a pressing block is fixedly connected to one end of the connecting rod close to the bidirectional electric push rod.

[0009] Preferably, a buffer spring is sleeved outside the connecting rod, and rollers are installed at both ends of the bidirectional electric push rod close to the extrusion block through movable shafts.

[0010] Preferably, a guide rod is connected below the toothed disc, and a guide groove is opened above the fixed chassis close to the guide rod.

[0011] Preferably, the guide rod and the guide groove are slidably connected.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. A limiting mechanism is provided. When steering is not required, the bidirectional electric push rod can be extended towards both ends to push the rollers. The rollers roll on the inclined surface of the extrusion block, so that the extrusion block is squeezed and pushed upwards to drive the connecting rod, and the buffer spring is squeezed. Subsequently, the connecting rod pushes the limiting frame upwards, and the limiting frame restricts the position of the toothed disc, which can prevent the gear from loosening when the hydraulic system of the floating excavation equipment fails, and improves the working stability of the steering device for the floating excavation equipment.

[0014] 2. Ball bearings, guide rods and guide grooves are provided. The wear can be reduced by the annularly distributed ball bearings, and the steering smoothness can be improved. Moreover, the guide rod below the toothed disc is located in the guide groove. When the toothed disc rotates, it drives the guide rod to rotate annularly in the guide groove, so as to facilitate the stable rotation of the toothed disc and improve the practicability of the steering device for the floating excavation equipment. Description of the Drawings

[0015] Figure 1 is a schematic top view structure diagram of the present utility model;

[0016] Figure 2 is a schematic top sectional view structure diagram of the present utility model;

[0017] Figure 3 is a schematic front sectional view structure diagram of the present utility model;

[0018] Figure 4 is a schematic three-dimensional structure diagram of the limiting frame of the present utility model.

[0019] In the figure: 1, fixed chassis; 2, support; 3, slewing frame; 4, ball bearings; 5, limiting mechanism; 501, limiting frame; 502, connecting rod; 503, extrusion block; 504, buffer spring; 505, bidirectional electric push rod; 6, guide rod; 7, guide groove; 8, toothed disc. Detailed Embodiment

[0020] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0021] Please refer to Figures 1 - 3 , the present utility model provides a technical solution: a steering device for a floating digging device, including a fixed chassis 1 and a slewing frame 3. A support 2 is fixedly installed above the fixed chassis 1, and the slewing frame 3 is fixed inside the support 2. A limiting mechanism 5 is installed inside the fixed chassis 1, and a gear disk 8 is meshed and connected inside the slewing frame 3.

[0022] Please refer to Figures 1 - 4 , one side of the limiting mechanism 5 is connected to the gear disk 8. The limiting mechanism 5 includes a limiting frame 501, a connecting rod 502, a pressing block 503, a buffer spring 504 and a two-way electric push rod 505. The two-way electric push rod 505 is installed in the built-in groove of the fixed chassis 1. The connecting rod 502 slides through the upper part of the fixed chassis 1. The upper part of the connecting rod 502 is connected to the limiting frame 501. One side of the limiting frame 501 is meshed and connected with the gear disk 8. One end of the connecting rod 502 close to the two-way electric push rod 505 is fixedly connected to the pressing block 503. A buffer spring 504 is sleeved outside the connecting rod 502. The two ends of the two-way electric push rod 505 close to the pressing block 503 are installed with rollers through movable shafts. The cross-sectional shape of the pressing block 503 is trapezoidal. The shape of the limiting frame 501 is annular, and tooth blocks are arranged in an annular distribution on the outside of the limiting frame 501.

[0023] During specific implementation, since the floating digging device is connected to the steering device through a gear, relative movement is carried out with the steering device through the rotation of the gear, so that the gear rotates on the steering device to achieve the purpose of steering. However, when the floating digging device does not need to steer, there is no structure for re-limiting the gear. The hydraulic system for limiting the gear of the floating digging device may malfunction, resulting in the gear being prone to loosening and rotation, affecting the working stability of the floating digging device. When steering is not required, the two-way electric push rod 505 can be extended towards both ends to push the rollers. The rollers roll on the inclined surface of the pressing block 503, so that the pressing block 503 is squeezed and pushes the connecting rod 502 upward, and the buffer spring 504 is squeezed. Subsequently, the connecting rod 502 pushes the limiting frame 501 upward, and the limiting frame 501 restricts the position of the gear disk 8, which can prevent the gear from loosening when the hydraulic system of the floating digging device malfunctions, improving the working stability of the steering device for the floating digging device.

[0024] Please refer to Figures 1 - 3 , on the upper surface of the support 2, ball bearings 4 are annularly distributed. Below the toothed disc 8, a guide rod 6 is connected. Above the fixed chassis 1 near the guide rod 6, a guide groove 7 is provided. The guide rod 6 and the guide groove 7 are slidably connected, and the structure of the guide groove 7 is annular.

[0025] During specific implementation, since the bottom of the amphibious excavation equipment contacts the steering device, wear is likely to occur on the surface where the steering device contacts the amphibious excavation equipment, affecting the steering operation. The annularly distributed ball bearings 4 can reduce wear and improve the steering smoothness. Moreover, the guide rod 6 below the toothed disc 8 is located in the guide groove 7. When the toothed disc 8 rotates, it drives the guide rod 6 to rotate annularly in the guide groove 7, facilitating the stable rotation of the toothed disc 8 and improving the practicality of the steering device for amphibious excavation equipment.

[0026] Working principle: When using the steering device for amphibious excavation equipment, first, the amphibious excavation equipment and the steering device are connected. The hydraulic system of the amphibious excavation equipment drives the toothed disc 8 to rotate. The toothed disc 8 is meshed and connected with the teeth of the slewing frame 3, causing the toothed disc 8 to rotate annularly inside the slewing frame 3, and at the same time driving the guide rod 6 to rotate in the guide groove 7. When steering is not required, the position of the toothed disc 8 can be restricted by the limiting mechanism 5 to prevent loosening, improving the working stability and practicality of the steering device for amphibious excavation equipment. The content not described in detail in this description belongs to the prior art well-known to those skilled in the art.

[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A steering device for a floating excavation equipment, comprising a fixed chassis (1) and a slewing frame (3), characterized in that: Above the fixed chassis (1), a support (2) is fixedly installed. The slewing frame (3) is fixed inside the support (2). On the upper surface of the support (2), annularly distributed balls (4) are installed. Inside the fixed chassis (1), a limiting mechanism (5) is installed. Inside the slewing frame (3), a gear disk (8) is meshed and connected. One side of the limiting mechanism (5) is connected to the gear disk (8).

2. The steering device for a floating excavation equipment according to claim 1, characterized in that: The limiting mechanism (5) includes a limiting frame (501), a connecting rod (502), a pressing block (503), a buffer spring (504), and a two-way electric push rod (505). The two-way electric push rod (505) is installed in the built-in groove of the fixed chassis (1).

3. The steering device for a floating excavation equipment according to claim 2, characterized in that: The connecting rod (502) slides through the fixed chassis (1) upward. Above the connecting rod (502), a limiting frame (501) is connected.

4. The steering device for a floating excavation equipment according to claim 3, characterized in that: One side of the limiting frame (501) is meshed and connected to the gear disk (8). One end of the connecting rod (502) close to the two-way electric push rod (505) is fixedly connected to a pressing block (503).

5. The steering device for a floating excavation equipment according to claim 4, characterized in that: A buffer spring (504) is sleeved outside the connecting rod (502). At both ends of the two-way electric push rod (505) close to the pressing block (503), rollers are installed through movable shafts.

6. The steering device for a floating excavation equipment according to claim 1, wherein: Below the gear disk (8), a guide rod (6) is connected. Above the fixed chassis (1) close to the guide rod (6), a guide groove (7) is opened.

7. The steering device for a floating excavation equipment according to claim 6, characterized in that: The guide rod (6) and the guide groove (7) are slidably connected.

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