Unattended positioning detection device for bucket wheel machine

Abstract

The utility model discloses an unattended positioning detection device for a bucket wheel machine, which comprises a bucket wheel machine arm and a protection frame arranged at the top of the bucket wheel machine arm, a UWB device is arranged in the protection frame, the top of the protection frame is connected with the protection frame in a sliding manner, and buffer plates are fixedly connected to two sides of an inner cavity of the protection frame. The front portion and the rear portion of the top of the buffer plate are both connected with buffer rods in a sliding mode through openings. According to the unattended positioning detection device for the bucket wheel machine, the protection frame is arranged on the protection frame, a UWB device can be well protected, impact force borne by the protection frame is buffered by a plurality of buffer rods through the acting force of a plurality of first springs, and therefore the UWB device can be well protected; and the UWB device is supported and protected through the protection plate, so that the UWB device can be better protected, and the safety protection effect of the UWB device is improved.

Description

Technical Field

[0001] This utility model relates to the field of bucket wheel excavator technology, specifically to an unattended positioning and detection device for bucket wheel excavators. Background Technology

[0002] Bucket wheel excavators are key equipment in coal yards and bulk material terminals of thermal power plants, primarily used for stacking and retrieving bulk materials on the site. With the implementation of unmanned, fully automated control of bucket wheel excavators, their positioning information is becoming increasingly crucial for automatic control. Currently, the positioning device for bucket wheel excavators is an encoder, which is generally used for positioning during operation. However, traditional encoder positioning relies on mechanical conversion, which can lead to errors due to mechanical backlash. Moreover, the longer the time, the greater the error, resulting in inaccurate positioning. Furthermore, if material falls from the bucket wheel excavator during operation, it can easily hit and damage the positioning device. Patent documents have already addressed these issues.

[0003] Chinese patent CN218037299U discloses a precise positioning device for bucket wheel excavators, including a UWB positioning device, a protective mechanism, and an installation mechanism. The protective mechanism includes a protective frame with a rubber elastic cover fixedly connected to its top. The UWB positioning device is installed inside the protective frame, and a UWB positioning system is installed inside the device. The installation mechanism includes a mounting plate with a fixing groove on its back, and a magnet plate is fixedly connected to the inner cavity of the groove. This invention uses the UWB positioning system inside the UWB positioning device to precisely position the bucket wheel excavator. UWB technology has advantages such as low system complexity, low transmitted signal power spectral density, insensitivity to channel fading, low interception capability, and high positioning accuracy. It is particularly suitable for high-speed wireless access in dense multipath environments such as indoor spaces, avoiding the errors and inaccuracies of traditional encoder positioning.

[0004] Although the aforementioned patent uses a UWB positioning device to position the bucket wheel excavator, and the UWB positioning device is protected by a rubber elastic cover during use, the protective effect of the rubber elastic cover is not good. It is easily damaged by the impact of large materials, and it is inconvenient to disassemble the UWB positioning device during maintenance. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides an unattended positioning and detection device for bucket wheel excavators, which solves the problems of large material impacts easily damaging the UWB positioning device and the inconvenience of disassembling the UWB positioning device during maintenance.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an unattended positioning and detection device for a bucket wheel excavator, comprising a bucket wheel excavator arm and a protective frame installed on the top of the bucket wheel excavator arm. A UWB device is installed inside the protective frame. A protective frame is slidably connected to the top of the protective frame. Buffer plates are fixedly connected to both sides of the inner cavity of the protective frame. Buffer rods are slidably connected to the front and rear parts of the top of the buffer plates through openings. One end of the buffer rod is fixedly connected to the protective frame. A first spring is sleeved on the surface of the buffer rod between the buffer plate and the protective frame. A support plate is fixedly connected to the top of the inner cavity of the protective frame through a connecting block. A protective plate adapted to the support plate is fixedly connected above the area between the front and rear parts of the inner cavity of the bucket wheel excavator arm.

[0007] Preferably, the front of the protective frame is hinged to a sealing door, a limit block is fixedly connected to the bottom of the inner cavity of the protective frame, an installation block is fixedly connected to the rear of the sealing door, and a fixing block is fixedly connected to the front of the UWB device.

[0008] Preferably, the front and rear parts of the limiting block are provided with limiting grooves that are adapted to the mounting block and the fixing block. A sliding rod is slidably connected to the lower side of one side of the protective frame through an opening. An annular plate is fixedly connected to the surface of the sliding rod and inside the protective frame. A second spring is sleeved on the surface of the sliding rod and between the annular plate and the protective frame.

[0009] Preferably, a strip plate is fixedly connected to the other end of the sliding rod, and a limit rod is fixedly connected to both the front and rear parts of one side of the strip plate.

[0010] Preferably, the front and rear parts of one side of the limiting block are provided with sliding holes that are adapted to the limiting rod, and the mounting block and the fixing block are provided with limiting holes on one side.

[0011] Preferably, filter screens are fixedly installed on both sides of the protective frame through openings.

[0012] Beneficial effects

[0013] This utility model provides an unattended positioning and detection device for bucket wheel excavators. Compared with existing technologies, it has the following advantages:

[0014] (1) The utility model can effectively protect the UWB device by setting the protective frame on the protective frame. The multiple first springs cause the multiple buffer rods to buffer the impact force on the protective frame, thus effectively protecting the UWB device. The protective plate supports and protects the UWB device, which can better protect the UWB device and improve the safety protection effect of the UWB device.

[0015] (2) By pulling the sliding rod to the left, the sliding rod will drive the two limiting rods to move through the strip plate. The two limiting rods will move out of the limiting holes in the mounting block and the fixing block, so that the limiting rods will no longer be stuck in the mounting block and the fixing block. The UWB device can be taken out for maintenance by opening the sealing door, so that the UWB device and the sealing door are simultaneously limited. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the internal structure of the present invention;

[0018] Figure 3 This is a rear view of the internal structure of the protective frame, sealing door, limiting block, sliding rod, annular plate, and second spring of this utility model.

[0019] Figure 4 This is a structural schematic diagram of the limiting block, mounting block, fixing block, strip plate, limiting rod, and sliding hole of this utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the limiting block, mounting block, fixing block, limiting groove, sliding hole and limiting hole of this utility model.

[0021] In the diagram: 1. Bucket wheel boom; 2. Protective frame; 3. UWB device; 4. Protective frame; 5. Buffer plate; 6. Buffer rod; 7. First spring; 8. Support plate; 9. Protective plate; 10. Sealing door; 11. Limiting block; 12. Mounting block; 13. Fixing block; 14. Limiting groove; 15. Sliding rod; 16. Annular plate; 17. Second spring; 18. Strip plate; 19. Limiting rod; 20. Sliding hole; 21. Limiting hole; 22. Filter screen plate. Detailed Implementation

[0022] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0023] Please see Figure 1-5This utility model provides a technical solution: an unattended positioning and detection device for a bucket wheel excavator, including a bucket wheel excavator arm 1 and a protective frame 2 installed on the top of the bucket wheel excavator arm 1. A UWB device 3 is installed inside the protective frame 2, and a UWB positioning system is installed inside the UWB device 3. A protective frame 4 is slidably connected to the top of the protective frame 2. Buffer plates 5 are fixedly connected to both sides of the inner cavity of the protective frame 2. Buffer rods 6 are slidably connected to the front and rear parts of the top of the buffer plate 5 through openings. One end of the buffer rod 6 is fixedly connected to the protective frame 4. A first spring 7 is sleeved on the surface of the buffer rod 6 between the buffer plate 5 and the protective frame 4. A support plate 8 is fixedly connected to the top of the inner cavity of the protective frame 4 through a connecting block. A protective plate 9 adapted to the support plate 8 is fixedly connected above the front and rear parts of the inner cavity of the bucket wheel excavator arm 1.

[0024] Furthermore, to facilitate the opening of the sealing door 10 for maintenance of the UWB device 3, the front of the protective frame 2 is hinged to the sealing door 10. A limit block 11 is fixedly connected to the bottom of the inner cavity of the protective frame 2. An installation block 12 is fixedly connected to the rear of the sealing door 10. A fixing block 13 is fixedly connected to the front of the UWB device 3. Limiting grooves 14 adapted to the installation block 12 and fixing block 13 are provided at both the front and rear of the limit block 11. A sliding rod 1 is slidably connected to the lower side of one side of the protective frame 2 through an opening. 5. An annular plate 16 is fixedly connected to the surface of the sliding rod 15 and inside the protective frame 2. A second spring 17 is sleeved on the surface of the sliding rod 15 and between the annular plate 16 and the protective frame 2. A strip plate 18 is fixedly connected to the other end of the sliding rod 15. Limiting rods 19 are fixedly connected to the front and rear of one side of the strip plate 18. Sliding holes 20 adapted to the limiting rods 19 are opened on the front and rear of one side of the limiting block 11. Limiting holes 21 are opened on one side of the mounting block 12 and the fixing block 13.

[0025] Furthermore, filter screens 22 are fixedly installed on both sides of the protective frame 2 through openings.

[0026] In use, the bucket wheel excavator is positioned by the UWB positioning system in the UWB device 3 inside the protective frame 2. UWB technology has the advantages of low system complexity, low power spectral density of transmitted signal, insensitivity to channel fading, low interception capability, and high positioning accuracy. It can accurately position the bucket wheel excavator and transmit the positioning signal to the main control console for operation of the unattended bucket wheel excavator.

[0027] When materials fall onto the protective frame 4, the force of multiple first springs 7 causes multiple buffer rods 6 to cushion the impact on the protective frame 4, preventing damage to the UWB device 3. When maintenance of the UWB device 3 is required, by pulling the sliding rod 15 to the left, the sliding rod 15 will drive the two limit rods 19 to the left through the strip plate 18, so that the two limit rods 19 move out of the sliding hole 20 and the limit hole 21, so that the two limit rods 19 no longer jam the mounting block 12 and the fixing block 13. By pulling the handle to open the sealing door 10, the UWB device 3 can be taken out from the protective frame 2 for maintenance.

Claims

1. An unattended positioning and detection device for a bucket wheel excavator, comprising a bucket wheel excavator arm (1) and a protective frame (2) installed on the top of the bucket wheel excavator arm (1), characterized in that: The protective frame (2) is equipped with a UWB device (3) inside. The top of the protective frame (2) is slidably connected to a protective frame (4). Both sides of the inner cavity of the protective frame (2) are fixedly connected to buffer plates (5). The front and rear parts of the top of the buffer plate (5) are slidably connected to buffer rods (6) through openings. One end of the buffer rod (6) is fixedly connected to the protective frame (4). A first spring (7) is sleeved on the surface of the buffer rod (6) and between the buffer plate (5) and the protective frame (4). The top of the inner cavity of the protective frame (4) is fixedly connected to a support plate (8) through a connecting block. A protective plate (9) adapted to the support plate (8) is fixedly connected above the front and rear parts of the inner cavity of the bucket wheel arm (1).

2. The unattended positioning and detection device for bucket wheel excavators according to claim 1, characterized in that: The front of the protective frame (2) is hinged to a sealing door (10), a limit block (11) is fixedly connected to the bottom of the inner cavity of the protective frame (2), an installation block (12) is fixedly connected to the rear of the sealing door (10), and a fixing block (13) is fixedly connected to the front of the UWB device (3).

3. The unattended positioning and detection device for bucket wheel excavators according to claim 2, characterized in that: The front and rear parts of the limiting block (11) are provided with limiting grooves (14) that are compatible with the mounting block (12) and the fixing block (13). A sliding rod (15) is slidably connected to the lower side of one side of the protective frame (2) through an opening. An annular plate (16) is fixedly connected to the surface of the sliding rod (15) and inside the protective frame (2). A second spring (17) is sleeved between the annular plate (16) and the protective frame (2) on the surface of the sliding rod (15).

4. The unattended positioning and detection device for bucket wheel excavators according to claim 3, characterized in that: The other end of the sliding rod (15) is fixedly connected to a strip plate (18), and a limit rod (19) is fixedly connected to the front and rear of one side of the strip plate (18).

5. The unattended positioning and detection device for bucket wheel excavators according to claim 4, characterized in that: The front and rear parts of one side of the limiting block (11) are provided with sliding holes (20) that are adapted to the limiting rod (19), and the one side of the mounting block (12) and the fixing block (13) are provided with limiting holes (21).

6. The unattended positioning and detection device for bucket wheel excavators according to claim 1, characterized in that: The protective frame (2) has filter screens (22) fixedly installed on both sides through openings.

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