Rotating wheel coupling pin dismounting device

By designing a pin removal device for the rotary coupling, and utilizing the connection between the drive device and the fixed component connecting rod and the pin thread hole, the problem of pin corrosion and difficulty in replacement caused by the narrow space at the rotary coupling is solved, achieving rapid disassembly and improving replacement efficiency.

CN224223789UActive Publication Date: 2026-05-12SICHUAN SHUGANG HYDROPOWER ENG TECHCO
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN SHUGANG HYDROPOWER ENG TECHCO
Filing Date
2025-04-29
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

In the existing technology, the pins of the rotating wheel coupling are prone to corrosion during use, and due to the limited space, it is difficult for operators to replace them quickly, which can easily damage the pins during the replacement process.

Method used

A device for removing pins from a rotating wheel coupling has been designed, including a drive unit and a connecting rod. The drive unit is connected to the rotating wheel body through a fixing component. The connecting rod engages with the threaded hole of the pin to achieve quick disassembly and avoid damage to the pin.

Benefits of technology

It enables rapid removal of pins without the need for welding mounting brackets or drilling, shortening the construction cycle, improving replacement efficiency, and avoiding pin damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a rotating wheel coupling pin dismantling device which comprises a driving device and a connecting rod, a through hole is formed in the driving device, and the connecting rod is movably connected with the driving device through the through hole. One end of the connecting rod is connected with a limiting block, and the end, away from the limiting block, of the connecting rod is used for being detachably connected with a pin body. The driving device is used for being matched with the limiting block and driving the connecting rod to move; a fixing assembly used for being connected with a rotating wheel body is rotationally installed on the driving device, and the driving device is installed on the rotating wheel body through the fixing assembly. The connecting pin can solve the problems that in the prior art, a connecting pin is prone to rusting in the using process, but due to the fact that the space of a rotating wheel coupling is narrow, the connecting pin is difficult to replace rapidly by an operator.
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Description

Technical Field

[0001] This utility model relates to the field of dismantling tooling technology, specifically a device for removing pins from a rotating wheel coupling. Background Technology

[0002] Couplings are key components in mechanical transmission systems used to connect two shafts and transmit power (torque and rotational motion). They not only achieve rigid or flexible connections between shafts, but also compensate for installation errors, absorb vibrations, and reduce impacts, thereby protecting equipment from damage.

[0003] Traditionally, the main shaft and runner of a water turbine are connected by a key and a large bolt. In conventional water turbines, the load variation of the unit is small, and the axial force in one direction of the unit is borne by the large bolt, which requires a relatively large bolt diameter. This results in poor manufacturing, processing, and pre-tightening processes, leading to relatively high costs. To address the problems in the existing technology, utility model CN213392475U discloses a novel tidal power turbine coupling structure (hereinafter referred to as Prior Art 1). This structure includes a conical main body assembled in the runner body, an end cap fixed to the conical main shaft by studs and nuts, the center of gravity of the runner passing through the end face of the end cap, connecting pins installed in pin holes on the conical main shaft and the runner body, two sealing strips installed between the conical main shaft and the runner body, and pressure holes provided between the sealing strips.

[0004] In the prior art 1, torque is transmitted by setting the connecting pin to ensure the long-term safe and stable operation of the unit; however, the connecting pin is prone to corrosion during use. Due to the narrow space at the rotor coupling, it is difficult for operators to quickly replace the connecting pin, and the connecting pin is easily damaged during the replacement process. Utility Model Content

[0005] The purpose of this utility model is to provide a device for removing pins from a rotating wheel coupling. In actual use, it can solve the problem that the connecting pins in the prior art are prone to corrosion during use, but the operator has difficulty in quickly replacing the connecting pins due to the narrow space at the rotating wheel coupling.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A device for removing pins from a rotating wheel coupling includes a drive device and a connecting rod. The drive device has a through hole, and the connecting rod is movably connected to the drive device through the through hole.

[0008] One end of the connecting rod is connected to a limiting block, and the end of the connecting rod away from the limiting block is detachably connected to the pin body; the driving device is used to cooperate with the limiting block and drive the connecting rod to move.

[0009] The drive device is rotatably mounted with a fixing component for connecting to the wheel body, and the drive device is mounted on the wheel body through the fixing component.

[0010] Preferably, the fixing component includes a rotating plate and a sleeve. The rotating plate is rotatably connected to the driving device, and the sleeve is symmetrically installed on the left and right sides of the rotating plate and threadedly connected to the rotating plate. The sleeve is provided with a mounting groove for connecting to the wheel body.

[0011] Preferably, the mounting groove is a stepped groove structure.

[0012] Preferably, a connecting bracket is installed on the drive device.

[0013] Preferably, a screw block is connected to the sleeve.

[0014] Preferably, a positioning block is connected to the driving device.

[0015] Preferably, the connecting seat is rotatably connected to the driving device.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In this utility model, by cooperating the fixing component with the fixing bolts installed on the wheel body, the drive device is fixed, which enables the drive device to be connected to the wheel body without additional processes such as welding mounting brackets or drilling. This shortens the construction cycle and solves the problem in the prior art that it is difficult to fix the drive device in the narrow space at the coupling of the wheel body by welding mounting brackets.

[0018] The connection between the connecting rod and the threaded hole on the pin body allows the drive device to quickly disassemble the pin body while avoiding damage to the pin body and improving replacement efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 This is a perspective view of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model.

[0022] Figure 3 This is a schematic diagram showing the connection relationship between the fixed component and the rotating wheel body in this utility model.

[0023] The attached diagram lists the components represented by each number as follows:

[0024] 101-Drive device, 102-Connecting rod, 103-Through hole, 104-Limiting block, 105-Fixing component, 106-Rotating plate, 107-Sleeve, 108-Mounting groove, 109-Connecting seat, 110-Tightening block, 111-Positioning block, 112-Rotating wheel body, 113-Pin body, 114-Fixing bolt. Detailed Implementation

[0025] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0026] In the description of the embodiments of this utility model, it should be understood that the terms "length", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0029] In this embodiment of the invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The following disclosure provides many different implementations or examples for different structures of the embodiments of the present invention. To simplify the disclosure of the embodiments of the present invention, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the embodiments of the present invention. Furthermore, reference numerals and / or reference letters may be repeated in different examples of the embodiments of the present invention; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various implementations and / or arrangements discussed.

[0031] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0032] See Figures 1-3 This embodiment discloses a pin removal and assembly mechanism for removing pins at the rotating wheel coupling. Specifically, it is a rotating wheel coupling pin removal device, including a driving device 101 and a connecting rod 102. The driving device 101 is provided with a through hole 103, and the connecting rod 102 is movably connected to the driving device 101 through the through hole 103.

[0033] One end of the connecting rod 102 is connected to the limiting block 104, and the end of the connecting rod 102 away from the limiting block 104 is used to be detachably connected to the pin body 113; the driving device 101 is used to cooperate with the limiting block 104 and drive the connecting rod 102 to move.

[0034] The drive device 101 is rotatably mounted with a fixing component 105 for connecting with the wheel body 112, and the drive device 101 is mounted on the wheel body 112 through the fixing component 105.

[0035] In this embodiment, the driving device 101 is a conventional hydraulic jack in the prior art. The output end of the hydraulic jack is used to cooperate with the limiting part to drive the connecting rod 102 to move. The connecting rod 102 passes through the through hole 103 and is movably connected to the driving device 101, so that the connecting rod 102 can move and rotate in the through hole 103. The structure and function of the hydraulic jack will not be described in detail here. A plurality of fixing bolts 114 are installed on the rotating wheel body 112. The fixing bolts 114 are evenly spaced along the circumference of the rotating wheel body 112. The pin body 11 3. Several pins are evenly spaced along the circumference of the rotating wheel body 112 and spaced apart from the fixing bolts 114. The pin body 113 is provided with threaded holes for connecting to the connecting rod 102. When the pin body 113 needs to be removed, the fixing component 105 is rotated first so that the fixing component 105 can be connected to the fixing bolts 114 located on the left and right sides of the pin to be removed. After the driving device 101 is connected to the fixing bolts 114 on the left and right sides of the pin to be removed through the fixing component 105, the driving device 101 can be positioned so that the movable connection is in place. The connecting rod 102 inside the through hole 103 can be correspondingly configured with a threaded hole on the pin body 113; rotating the limiting block 104 can drive one end of the connecting rod 102 away from the limiting block 104 to move towards the threaded hole and threadedly connect with the threaded hole; the output end of the driving device 101 can drive the limiting part to move away from the rotating wheel body 112 after the connecting rod 102 is connected to the threaded hole, thereby removing the pin body 113 from the rotating wheel body 112; in this embodiment, the fixing component 105 is connected to the fixing bolt installed on the rotating wheel body 112. The 114 mechanism secures the drive device 101, allowing it to be connected to the wheel body 112 without additional steps such as welding mounting brackets or drilling. This shortens the construction cycle and solves the problem in the prior art where it is difficult to secure the drive device 101 in the confined space at the coupling of the wheel body 112 using welding mounting brackets. Furthermore, the engagement of the connecting rod 102 with the threaded hole on the pin body 113 allows the drive device 101 to quickly disassemble the pin body 113 without damaging it, thus improving replacement efficiency.

[0036] In some embodiments, the fixing assembly 105 includes a rotating plate 106 and a sleeve 107. The rotating plate 106 is rotatably connected to the driving device 101. The sleeve 107 is symmetrically installed on the left and right sides of the rotating plate 106 and threadedly connected to the rotating plate 106. The sleeve 107 is provided with a mounting groove 108 for connecting to the wheel body 112. In this embodiment, the mounting groove 108 is used to be threadedly connected to the fixing bolts 114 provided on the rotating wheel body 112, and the rotating plate 106 is rotatably connected to the driving device 101 through bearings. When it is necessary to remove the pin body 113, the rotating plate is rotated first, so that the sleeves 107 symmetrically connected on the rotating plate 106 are moved to the corresponding positions of the fixing bolts 114 on the left and right sides of the pin to be removed. At this time, after rotating the sleeves 107, the sleeves 107 can be connected to the fixing bolts 114 through the mounting groove 108. After the sleeves 107 are connected to the fixing bolts 114, the driving device 101 can be positioned, so that the connecting rod 102 movably connected in the through hole 103 is correspondingly set with the threaded hole provided on the pin body 113.

[0037] In some embodiments, the mounting groove 108 is a stepped groove structure. In this embodiment, the mounting groove 108 can form a stepped groove structure with three sections: upper, middle, and lower, and the diameter gradually increases from top to bottom. The stepped groove structure is used to connect with fixing bolts 114 of different sizes provided on different wheel bodies 112, thereby realizing the positioning and fixing of the drive device 101.

[0038] In some embodiments, the end of the connecting rod 102 away from the limiting portion is provided with a connector, which has a stepped structure. The connector of the stepped joint can be matched with various sizes of threaded holes on different pin bodies 113 according to actual needs by setting different diameters or pitches, thereby realizing the disassembly of the pin body 113.

[0039] In some embodiments, a connecting seat 109 is mounted on the drive device 101. The connecting seat 109 is used to connect with a hoisting mechanism, through which the drive device 101 can be moved to the coupling of the wheel body 112. In this embodiment, the hoisting mechanism is a conventional hoisting device in the prior art, and its structure and function will not be described in detail here.

[0040] In some embodiments, a screw block 110 is connected to the sleeve 107. The screw block 110 on the sleeve 107 facilitates rotation of the sleeve 107.

[0041] In some embodiments, a positioning block 111 is connected to the drive device 101. A countersunk groove and a positioning groove are provided on the wheel body 112, coaxially arranged with the pin body 113. During the fixing of the drive device 101, the cooperation between the positioning groove and the positioning block 111 allows the connecting rod 102, movably connected within the through hole 103, to further align with the threaded hole on the pin body 113, thereby improving the connection efficiency and effect between the connecting rod 102 and the threaded hole.

[0042] In some embodiments, the connecting seat 109 is rotatably connected to the drive device 101. During the hoisting and transfer of the drive device 101 by the hoisting mechanism, it is necessary to adjust the position of the drive device 101 to achieve the positioning and installation of the drive device 101. The fixed connection between the connecting seat 109 and the drive device 101 makes it difficult for operators to adjust the angle or horizontal position of the drive device 101 during the hoisting process, affecting the installation efficiency and installation effect of the drive device 101.

[0043] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0044] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for removing pins from a rotating wheel coupling, characterized in that: It includes a driving device (101) and a connecting rod (102). The driving device (101) is provided with a through hole (103), and the connecting rod (102) is movably connected to the driving device (101) through the through hole (103). One end of the connecting rod (102) is connected to a limiting block (104), and the end of the connecting rod (102) away from the limiting block (104) is used to be detachably connected to the pin body (113); the driving device (101) is used to cooperate with the limiting block (104) and drive the connecting rod (102) to move. The drive device (101) is rotatably mounted with a fixing component (105) for connecting with the wheel body (112), and the drive device (101) is mounted on the wheel body (112) via the fixing component (105).

2. The device for removing the pins of a rotating wheel coupling according to claim 1, characterized in that: The fixing component (105) includes a rotating plate (106) and a sleeve (107). The rotating plate (106) is rotatably connected to the driving device (101). The sleeve (107) is symmetrically installed on the left and right sides of the rotating plate (106) and threadedly connected to the rotating plate (106). The sleeve (107) is provided with a mounting groove (108) for connecting with the wheel body (112).

3. The device for removing the pins of a rotating wheel coupling according to claim 2, characterized in that: The mounting groove (108) is a stepped groove structure.

4. The device for removing the pins of a rotating wheel coupling according to claim 1, characterized in that: A connecting seat (109) is installed on the drive device (101).

5. The device for removing the pins of a rotating wheel coupling according to claim 2, characterized in that: A screw block (110) is connected to the sleeve (107).

6. The device for removing the pins of a rotating wheel coupling according to claim 1, characterized in that: A positioning block (111) is connected to the drive device (101).

7. The device for removing the pins of a rotating wheel coupling according to claim 4, characterized in that: The connecting seat (109) is rotatably connected to the driving device (101).