Swing mechanism detection device

Abstract

The invention relates to a slewing mechanism detection device which comprises an encoder, the encoder is connected with a coupler, the coupler is connected with a rotating shaft, the rotating shaft is sleeved with a bearing, a bearing check ring is arranged at the joint of the bearing and the rotating shaft, and the bearing is sleeved with a connecting plate. One end of the connecting plate is connected with the first end cover, the other end of the connecting plate is connected with the second end cover, one end of the rotating shaft is connected with a gear, and the gear is connected with the end plates. According to the method, accurate rotary positioning and stable operation (such as accurate hook falling of a crane and rapid tracking of radar) are ensured, and the adjustment time consumption is reduced.

Description

Technical Field

[0001] This invention relates to the field of rotary testing equipment technology, and in particular to a rotary mechanism testing device. Background Technology

[0002] With the rapid growth of high-speed rail, operational safety has become an increasingly important concern. As part of the high-speed rail system engineering, research on high-speed rail rescue equipment and technology is receiving increasing attention. While the technology of railway rescue cranes on existing lines is mature, the unique structure of high-speed rail means that various types of railway rescue cranes on existing lines cannot perform rescue operations on bridges. Therefore, researching high-speed rail rescue cranes is imperative. One existing technology utilizes proximity switches to detect a detection plate and measure the rotation angle. Six measuring points are set on the railway rescue crane at 10°, 20°, and 30°. As shown in Figure 2, when the turntable rotates, it drives the proximity switch to rotate. When the turntable rotates to 10°, the proximity switch detects the detection plate, thus obtaining a signal. The system converts this signal into the current rotation angle of the turntable. However, this method suffers from limitations due to the large diameter of the proximity switch itself, resulting in low accuracy in angle detection, susceptibility to errors, and a limited detection range. Summary of the Invention

[0003] In view of the above problems, the present invention provides a slewing mechanism detection device, which not only ensures accurate slewing positioning and smooth operation (such as precise hook lowering of cranes and rapid radar tracking), but also reduces adjustment time.

[0004] To achieve the above and other related objectives, the present invention provides the following technical solution: A rotary mechanism detection device includes an encoder connected to a coupling, the coupling connected to a rotating shaft, a bearing sleeved on the outside of the rotating shaft, a bearing retaining ring provided at the connection between the bearing and the rotating shaft, a connecting plate sleeved on the outside of the bearing, one end of the connecting plate connected to a first end cover, the other end of the connecting plate connected to a second end cover, and a gear connected to one end of the rotating shaft, the gear being connected to an end plate.

[0005] Preferably, an encoder cover is provided below the encoder, and the encoder cover is bolted to the first end cover.

[0006] Preferably, the connecting plate is connected to the stiffening plate.

[0007] Preferably, the stiffening plate is connected to the support plate.

[0008] Preferably, the connecting plate is fixedly connected to the second end cap by bolts.

[0009] Preferably, the diameter of the end plate is smaller than the diameter of the gear.

[0010] Preferably, the end plate is circular in shape.

[0011] Preferably, the rotating shaft is integrally cast.

[0012] Preferably, the first end cap is in the shape of a ring, and the second end cap is in the shape of a ring.

[0013] Preferably, the encoder is either a clamping flange type or a synchronous flange type.

[0014] The present invention has the following positive effects: This invention uses an encoder to accurately and in real-time convert physical motion (position, speed, direction) into electrical signals readable by the control system. This not only ensures accurate rotation positioning and smooth operation (such as precise hook lowering of a crane and rapid radar tracking) and reduces adjustment time, but also solves the problem that the large diameter of the proximity switch itself leads to low accuracy in angle detection, easy error generation, and a small range of detectable angles, which has great limitations. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the device for measuring rotation angle using a proximity switch detection board according to the present invention.

[0016] The labels in the diagram are as follows: 1-Gear, 2-Shaft, 3-First end cover, 4-Bearing, 5-Connecting plate, 6-Second end cover, 7-Encoder cover, 8-Coupling, 9-Encoder, 10-Support plate, 11-End plate, 12-Bearing retaining ring, 13-Rib plate, 14-Turntable, 15-Proximity switch, 16-Detection plate. Detailed Implementation

[0017] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0018] Example: Figure 1As shown, a rotary mechanism detection device includes an encoder 9, which is connected to a coupling 8. The coupling 8 is connected to a rotating shaft 2. A bearing 4 is sleeved on the outside of the rotating shaft 2. A bearing retaining ring 12 is provided at the connection between the bearing 4 and the rotating shaft 2. A connecting plate 5 is sleeved on the outside of the bearing 4. One end of the connecting plate 5 is connected to a first end cover 3, and the other end of the connecting plate 5 is connected to a second end cover 6. A gear 1 is connected to one end of the rotating shaft 2, and the gear 1 is connected to an end plate 11.

[0019] In this embodiment, an encoder cover 7 is provided below the encoder 9, and the encoder cover 7 is bolted to the first end cover 3.

[0020] In this embodiment, the connecting plate 5 is connected to the stiffening plate 13.

[0021] In this embodiment, the stiffener 13 is connected to the support plate 10.

[0022] In this embodiment, the connecting plate 5 is fixedly connected to the second end cover 6 by bolts.

[0023] In this embodiment, the diameter of the end plate 11 is smaller than the diameter of the gear 1.

[0024] In this embodiment, the end plate 11 is circular in shape.

[0025] In this embodiment, the rotating shaft 2 is integrally cast.

[0026] In this embodiment, the first end cap 3 is in the shape of a ring, and the second end cap 6 is in the shape of a ring.

[0027] In this embodiment, the encoder 9 is either a clamping flange type or a synchronous flange type.

[0028] The working principle of this invention: In the slewing mechanism detection device, it is an indispensable key sensor for achieving accurate angle measurement, speed monitoring, closed-loop control feedback, and fault diagnosis and location. Through gear 1 transmission, the large gear of the turntable drives gear 1 of the slewing mechanism to rotate. The gear, through the rotating shaft 2 and bushing 4, drives the encoder 9 to rotate, thereby obtaining an electrical signal. This signal is then used to derive the rotation angle and other values ​​from pre-set values, thus monitoring the data required for crane lifting. The entire device consists of gear 1, rotating shaft 2, bearing 4, coupling 8, and encoder 9, which are welded and fixed to the turntable 14 via a support plate 10. Gear 1 drives rotating shaft 2, which in turn drives coupling 8 and encoder 9, causing encoder 9 to generate an electrical signal, thereby detecting the rotation angle of the large gear.

[0029] In summary, this invention not only ensures accurate slewing positioning and smooth operation (such as precise hook lowering of cranes and rapid radar tracking), but also reduces adjustment time.

[0030] The specific embodiments described above do not constitute a limitation on the scope of protection of this disclosure. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A rotary mechanism detection device, comprising an encoder (9), characterized in that: The encoder (9) is connected to the coupling (8), the coupling (8) is connected to the shaft (2), the shaft (2) is fitted with a bearing (12), the bearing (12) is fitted with a bearing retainer (12) at the connection between the bearing (12) and the shaft (2), the bearing (4) is fitted with a connecting plate (5), one end of the connecting plate (5) is connected to the first end cover (3), the other end of the connecting plate (5) is connected to the second end cover (6), one end of the shaft (2) is connected to a gear (1), and the gear (1) is connected to the end plate (11).

2. The rotary mechanism detection device according to claim 1, characterized in that: The encoder (9) is provided with an encoder cover (7) below it, and the encoder cover (7) is bolted to the first end cover (3).

3. The rotary mechanism detection device according to claim 1, characterized in that: The connecting plate (5) is connected to the stiffening plate (13).

4. The rotary mechanism detection device according to claim 3, characterized in that: The stiffening plate (13) is connected to the support plate (10).

5. The rotary mechanism detection device according to claim 1, characterized in that: The connecting plate (5) is fixedly connected to the second end cap (6) by bolts.

6. The rotary mechanism detection device according to claim 1, characterized in that: The diameter of the end plate (11) is smaller than the diameter of the gear (1).

7. The rotary mechanism detection device according to claim 1, characterized in that: The end plate (11) is circular in shape.

8. The rotary mechanism detection device according to claim 1, characterized in that: The rotating shaft (2) is integrally cast.

9. The rotary mechanism detection device according to claim 1, characterized in that: The first end cap (3) is in the shape of a ring, and the second end cap (6) is in the shape of a ring.

10. The rotary mechanism detection device according to claim 1, characterized in that: The encoder (9) can be either a clamping flange type or a synchronous flange type.

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