Modular multi-channel center swivel

Abstract

The utility model discloses a modularization multichannel center rotary device, including inner rotary body and outer rotary body, and the inner rotary body is fixed with outer rotary body through the cover, and the rotary body is left with the passageway between cover for the arrangement of the roller, and the inner rotary body is equipped with sealing device between outer rotary body, and the outer rotary body outside borehole and connect the outer interface of fluid medium in and out, and the inner rotary body is arranged with the wire harness ring between outer rotary body. The utility model discloses modularization passageway design, can select corresponding passageway number, form according to the design need, is convenient for maintenance replacement, has reduced maintenance cost, and all passageways can rotate 360 degrees relatively and can transfer fluid medium, pressure energy, electrical signal etc.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery, and in particular to a modular multi-channel center rotary device. Background Technology

[0002] Many construction machines (such as cranes and fire trucks) consist of a superstructure and a chassis. During operation, the chassis remains stationary, while the superstructure needs to rotate 360°. Most hydraulic power sources and electrical supplies are mounted on the chassis. To ensure smooth operation of the superstructure at any rotation angle, a central rotary joint is typically used as the energy transmission device between the superstructure and the chassis, transmitting fluid media, pressure energy, and electrical signals.

[0003] Existing central rotating body devices, such as patent CN204372415U, are mostly integrated structures. The internal core is arranged with multiple oil channels and electrical channels. The outer shell and the internal core are connected by annular oil grooves and electric rings, and sealing and insulation measures are taken to ensure that the inner core and the outer shell can rotate 360° relative to each other and can transmit fluid media, pressure energy, electrical signals, etc.

[0004] However, when the core is damaged or the seal malfunctions, troubleshooting and repair are extremely difficult, often requiring replacement of the entire assembly, which is prohibitively costly. Therefore, it is necessary to develop a new type of center-rotating device to overcome these problems. Utility Model Content

[0005] Purpose of the utility model: In view of the shortcomings and defects of the existing technology, this utility model provides a modular multi-channel center rotation device. It adopts a modular channel design, which can select the appropriate number and form of channels according to design needs, which facilitates maintenance and replacement and reduces maintenance costs. All channels can rotate 360° relative to each other between the inner and outer rings and can transmit fluid media, pressure energy, electrical signals, etc.

[0006] Technical solution: The present invention relates to a modular multi-channel central rotary device, characterized in that: it includes an inner rotary body and an outer rotary body, which are fixed by a cover, a channel is left between the rotary body and the cover for arranging rollers, a sealing device is provided between the inner rotary body and the outer rotary body, and an external interface for fluid medium to enter and exit is opened on the outer side of the inner rotary body and the outer rotary body, and a wire harness ring is arranged between the inner rotary body and the outer rotary body.

[0007] The inner and outer rotating bodies can rotate 360°.

[0008] The sealing device is a sealing gasket.

[0009] The number of channels is two or more, and the inner side of the channel is connected to the fixed base.

[0010] The fixed base is fixedly mounted on the external chassis frame.

[0011] The fixed base has several holes, which correspond to the channels.

[0012] The shift fork on the side of the outer rotating body is fixedly connected to the external upper rotating platform.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages: The present invention adopts a modular channel design, which can select the corresponding number and form of channels according to design needs, which facilitates maintenance and replacement and reduces maintenance costs; all channels can rotate 360° relative to each other between the inner and outer rings and can transmit fluid media, pressure energy, electrical signals, etc. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the channel structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the channel of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of this utility model;

[0017] In the diagram, 1 is the inner rotating body; 2 is the cover; 3 is the outer rotating body; 4 is the sealing gasket; 5 is the roller; 6 is the outer interface; 7 is the wire harness ring; 8 is the fixing seat; and 9 is the shift fork. Detailed Implementation

[0018] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0019] The central rotating device of this utility model is an energy transfer device between rotating parts, which is widely used in engineering machinery for transmitting fluid media, pressure energy, electrical signals, etc., and the fixed part and the rotating part can rotate 360° arbitrarily.

[0020] This utility model discloses a modular multi-channel center rotary device, comprising an inner rotary body 1 and an outer rotary body 3, which are fixed together by a cover 2. A channel is provided between the rotary body and the cover 2 for arranging rollers 5. A sealing device is provided between the inner rotary body 1 and the outer rotary body 3. The outer sides of the inner rotary body 1 and the outer rotary body 3 have openings and are connected to external interfaces 6 for fluid medium entry and exit. A wire harness ring 7 is arranged between the inner rotary body 1 and the outer rotary body 3. The inner rotary body 1 and the outer rotary body 3 can rotate 360°. The sealing device is a sealing gasket 4. There are two or more channels, and the inner side of each channel is connected to a fixed base 8. The fixed base 8 is fixedly mounted on an external chassis frame. The fixed base 8 has several holes corresponding to the channels. A fork 9 on the side of the outer rotary body 3 is fixedly connected to an external upper rotary table.

[0021] The internal structure of the channel module of this utility model is as follows: Figure 2 The inner rotating body 1 and the outer rotating body 3 are fixed by a cover 2. A channel is left between the rotating body and the cover for arranging rollers 5. A sealing device is added between the inner rotating body 1 and the outer rotating body 2 to ensure that the fluid medium does not leak. The inner rotating body 1 and the outer rotating body 2 can rotate 360°. Holes are opened on the outside of the inner rotating body 1 and the outer rotating body 2 respectively, and external interfaces 6 for fluid medium to enter and exit are connected. When used as a fluid medium or pressure energy transmission channel, the two relatively rotating fluid pipelines are connected to the corresponding external interfaces 6 respectively. When used as an electrical wiring harness transmission channel, a wiring harness ring 7 is arranged between the inner rotating body 1 and the outer rotating body 2, and then the two relatively rotating wire harnesses are connected to the corresponding external interfaces 6 respectively to realize signal transmission.

[0022] The mounting base 8 is fixed to the chassis frame. Holes are drilled in the mounting base 8 according to the channel requirements, and corresponding channel modules are arranged on it. The inner side of the channel module is fixed to the mounting base 8, and the side fork 9 of the outer slewing body 3 is fixed to the upper rotating platform. Rotation of the platform will drive the fork 8 and the outer slewing body 3 to rotate. When a channel malfunctions, only the faulty channel needs to be replaced.

[0023] This invention adopts a modular channel design, allowing for the selection of the appropriate number and form of channels according to design needs, facilitating maintenance and replacement, and reducing maintenance costs. All channels can rotate 360° relative to each other between their inner and outer rings and can transmit fluid media, pressure energy, electrical signals, etc. The channel module of this invention mainly achieves channel energy transfer through inner and outer rotating bodies and a cover. The roller type, sealing type, and number of interfaces can be designed according to actual needs. The fixed base and shift fork are respectively fixed to two relatively rotating components; the form of the fixed base and shift fork can be designed according to actual needs. The number of channels shown in the schematic diagram is for illustrative purposes only and can be determined according to actual requirements.

Claims

1. A modular multi-channel center rotary device, characterized in that: It includes an inner rotating body (1) and an outer rotating body (3). The inner rotating body (1) and the outer rotating body (3) are fixed by a cover (2). A channel is left between the rotating body and the cover (2) for arranging rollers (5). A sealing device is provided between the inner rotating body (1) and the outer rotating body (3). The outer sides of the inner rotating body (1) and the outer rotating body (3) are opened and connected to an external interface (6) for the fluid medium to enter and exit. A wire harness ring (7) is arranged between the inner rotating body (1) and the outer rotating body (3).

2. The modular multi-channel center rotary device according to claim 1, characterized in that: The inner rotating body (1) and the outer rotating body (3) can rotate 360°.

3. The modular multi-channel center rotary device according to claim 1, characterized in that: The sealing device is a sealing gasket (4).

4. The modular multi-channel center rotary device according to claim 1, characterized in that: The number of channels is two or more, and the inner side of the channel is connected to the fixed seat (8).

5. The modular multi-channel center rotary device according to claim 4, characterized in that: The fixed base (8) is fixedly installed on the external chassis frame.

6. The modular multi-channel center rotary device according to claim 5, characterized in that: The fixed base (8) has several holes, which correspond to the channels.

7. The modular multi-channel center rotary device according to claim 1, characterized in that: The shift fork (9) on the side of the outer rotating body (3) is fixedly connected to the external upper rotating platform.

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