CN213839978U

CN213839978U - Waterproof ventilative type rotary joint

Info

Publication number: CN213839978U
Application number: CN202022363983.9U
Authority: CN
Inventors: 许友元; 张晓雷
Original assignee: Nanjing Aerosun Morita Environmental Protection S&t Co ltd
Current assignee: Nanjing Aerosun Morita Environmental Protection S&t Co ltd
Priority date: 2020-10-22
Filing date: 2020-10-22
Publication date: 2021-07-30
Anticipated expiration: 2030-10-22

Abstract

The utility model relates to a waterproof ventilative type swivel joint belongs to swivel joint technical field. The utility model discloses a by the casing, the joint main part that core and electric sliding ring are constituteed, the core cover is outside the core, the core passes through the supporting guide ring to be supported in the casing, be equipped with hydraulic seal circle and brass supporting ring between casing and the core, there is the transition connecting plate casing below the casing through the mounting screw, the outer lane stator of electric sliding ring passes through set screw and installs on the transition connecting plate, electric sliding ring protective housing passes through mounting screw to be fixed on the transition connecting plate, the clamp plate passes through clamp plate screw and installs on the core, the clamp plate closes as an organic whole and the dead in axis with the core. The utility model discloses small in size, simple structure have solved swivel joint's electric waterproof problem, compromise ventilative radiating function simultaneously, simple to operate, do not account for the space, the practicality is strong, the effect is good.

Description

Waterproof ventilative type rotary joint

Technical Field

The utility model relates to a waterproof ventilative type swivel joint belongs to swivel joint technical field.

Background

The swivel joint is widely used in the field of engineering machinery and the industry of special operation vehicles, and is an important part necessary for cranes, fire trucks, excavators and overhead working vehicles. The traditional method for solving the electrical sealing of the rotary joint is generally realized by coating waterproof sealant on a water leakage part or selecting an aviation joint, and the traditional method solves the problem of waterproof sealing of the rotary joint, but the defects of air impermeability and no heat dissipation exist in the rotary joint during sealing. Once the rotary joint is used in a high-frequency rotation working condition, the electric slip ring of the core part of the rotary joint frequently rotates to work, and then the temperature between the stator and the rotor of the slip ring can be rapidly increased due to continuous friction, so that the electric slip ring of the rotary joint is easily damaged and failed for a long time.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is, it is not enough to prior art, provides one kind and can solve electric waterproof problem, compromises the waterproof ventilative type swivel joint of ventilative radiating function simultaneously.

The utility model discloses a solve the technical scheme that above-mentioned technical problem provided and be:

the utility model provides a waterproof ventilative type rotary joint, includes the joint main part of constituteing by casing, core and electric sliding ring, the core cover is in outside the core, the core supports through the supporting guide ring in the casing, be equipped with hydraulic seal and brass supporting ring between casing and the core, the transition connecting plate is installed to the casing below, and the outer lane stator of electric sliding ring is installed on the transition connecting plate, and electric sliding ring protective housing fixes on the transition connecting plate, and the clamp plate is installed on the core, the clamp plate closes as an organic whole and the axis coincidence with the core, the laminating of clamp plate upper surface is in the recess of transition connecting plate, and right the core is spacing fixed, and the inner circle rotor of electric sliding ring passes through rotor screw and connects on the clamp plate, the inner circle rotor is integrative with the concentric coaxial formation of clamp plate.

The improvement of the technical scheme is as follows: the core body is provided with a hydraulic channel, the hydraulic channel is respectively connected with a hydraulic upper interface and a hydraulic lower interface, the outer ring fixed end of the electric slip ring is connected with a lower port of a lead, the inner ring of the electric slip ring is connected with a circuit channel and a through joint, and the through joint is connected with a cap joint and an output port.

The improvement of the technical scheme is as follows: and a leakage device is arranged on the electric slip ring protective housing.

The improvement of the technical scheme is as follows: the support guide ring rotatably guides the core.

The utility model adopts the above technical scheme's beneficial effect is: small in size, simple structure have solved swivel joint's electric waterproof problem, compromise ventilative radiating function simultaneously, simple to operate, do not account for the space, the practicality is strong, the effect is good.

Drawings

The present invention will be further explained with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a straight joint according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a cap joint according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a leak according to an embodiment of the present invention;

the examples in the figure are: the device comprises a shell 1, a core body 2, a circuit channel 3, an output port 4, a cap joint 5, a through joint 6, a hydraulic upper interface 7, a brass supporting ring 8, a hydraulic sealing ring 9, a hydraulic lower interface 10, a screw 11, a transition connecting plate 12, a lead lower port 13, a fixing screw 14, an electric slip ring protective casing 15, an electric slip ring 16, a rotor screw 17, a mounting screw 18, a pressure plate 19, a pressure plate screw 20, a core body supporting guide ring 21 and a leakage device 22.

Detailed Description

Examples

As shown in fig. 1, the waterproof air-permeable rotary joint of the present embodiment includes a joint main body composed of a shell 1, a core 2 and an electrical slip ring 16, the core 2 is sleeved outside the core 2, the core 2 is supported in the shell 1 through a supporting guide ring 21, a hydraulic seal ring 9 and a brass support ring 8 are disposed between the shell 1 and the core 2, a transition connection plate 12 is installed below the shell 1 through screws, an outer ring stator of the electrical slip ring 16 is installed on the transition connection plate 12 through a fixing screw 14, a protective cover 15 of the electrical slip ring 16 is fixed on the transition connection plate 12 through a mounting screw 18, a pressure plate 19 is installed on the core 2 through a pressure plate screw 20, the pressure plate 19 and the core 2 are integrated and the axes are coincident, the upper surface of the pressure plate 19 is attached to a groove of the transition connection plate 12 and is fixed to the core 2 in a limiting manner, an inner ring rotor of the electrical slip ring 16 is connected to the pressure plate 19 through a rotor screw 17, the inner ring rotor and the pressure plate 19 are concentrically and coaxially formed into a whole.

The core body 2 is provided with a hydraulic channel which is respectively connected with a hydraulic upper interface 7 and a hydraulic lower interface 10, the outer ring fixed end of an electric slip ring 16 is connected with a lower port 13 of a lead, the inner ring of the electric slip ring 16 is connected with a circuit channel 3 and a through joint 6, and the through joint 6 is connected with a cap joint 5 and an output port 4.

The electrical slip ring 16 has a leak 22 mounted on the protective casing 15. The support guide ring 21 rotatably guides the core 2.

As shown in fig. 2, the through joint 6 is tubular and provided with straight threads, and is mainly used for mounting and fixing the cap joint 5; the straight joint 6 is internally provided with a long hole, the straight joint 6 is provided with a heat dissipation round hole, and the straight joint 6 is prevented from rusting in the using process and the surface of the joint needs to be galvanized or colored zinc.

As shown in fig. 3, the cap connector 5 is an elongated nut, and the cap connector 5 is engaged with the through connector 6.

As shown in fig. 4, the leaker 22 consists of a head and a tail, the head of the leaker 22 being a threaded joint and being mounted at the lowest point of the electrical slip ring protective casing 15; the tail part is arranged in the atmosphere, is sintered by powder metallurgy to form a block, and has the functions of ventilating and discharging liquid and preventing large-size granular objects from entering the electric slip ring 16.

The present invention is not limited to the above embodiment. All technical solutions formed by equivalent substitutions fall within the protection scope of the present invention.

Claims

1. The utility model provides a waterproof ventilative type rotary joint, includes the joint main part of constituteing by casing, core and electric sliding ring, the core cover is in outside the core, its characterized in that: the core is supported in the shell through a supporting guide ring, a hydraulic seal ring and a brass supporting ring are arranged between the shell and the core, a transition connecting plate is installed below the shell through screws, an outer ring stator of the electric slip ring is installed on the transition connecting plate through fixing screws, an electric slip ring protective housing is fixed on the transition connecting plate through mounting screws, a pressing plate is installed on the core through pressing plate screws, the pressing plate and the core are combined into a whole, the axis of the pressing plate coincides, the upper surface of the pressing plate is attached to the inside of a groove of the transition connecting plate and is fixed in a limiting mode, an inner ring rotor of the electric slip ring is connected to the pressing plate through rotor screws, and the inner ring rotor and the pressing plate are coaxially formed into a whole.

2. The waterproof breathable swivel joint of claim 1, wherein: the core body is provided with a hydraulic channel, the hydraulic channel is respectively connected with a hydraulic upper interface and a hydraulic lower interface, the outer ring fixed end of the electric slip ring is connected with a lower port of a lead, the inner ring of the electric slip ring is connected with a circuit channel and a through joint, and the through joint is connected with a cap joint and an output port.

3. The waterproof breathable swivel joint of claim 1, wherein: and a leakage device is arranged on the electric slip ring protective housing.

4. The waterproof breathable swivel joint of claim 1, wherein: the support guide ring rotatably guides the core.