CN212850067U

CN212850067U - Waterproof steering engine

Info

Publication number: CN212850067U
Application number: CN202021693632.8U
Authority: CN
Inventors: 何振东
Original assignee: Shenzhen Dragon Trainer Technology Co ltd
Current assignee: Shenzhen Dragon Trainer Technology Co ltd
Priority date: 2020-08-13
Filing date: 2020-08-13
Publication date: 2021-03-30
Anticipated expiration: 2030-08-13

Abstract

The utility model belongs to the field of deepwater operation and discloses a waterproof steering engine, which comprises a steering engine body and a steering engine upper cover; the steering engine upper cover is provided with a bearing hole, the steering engine body is provided with a transmission bearing, and the transmission bearing penetrates through the bearing hole to be connected with the steering engine upper cover; a sealing ring is arranged on the transmission bearing, and a sealing groove is arranged on the sealing ring; the bearing hole is provided with a diversion trench; when the steering engine upper cover is combined with the steering engine body, the sealing ring is hidden in the steering engine upper cover, and the sealing groove is tightly attached to the diversion groove; when the waterproof steering engine enters underwater, water flows into the sealing groove through the guide groove, pressure is generated to enable the sealing ring to expand, and the air tightness of the waterproof steering engine is enhanced. The utility model provides a current steering wheel waterproof performance poor, the unable problem that is applicable to the deep sea operation.

Description

Waterproof steering engine

Technical Field

The utility model belongs to deep water operation field especially relates to a waterproof steering wheel.

Background

The steering engine is a position (angle) servo driver, and mainly comprises a shell, a circuit board, a driving motor, a speed reducer and a position detection element. The working principle is that the receiver sends a signal to the steering engine, the IC on the circuit board drives the coreless motor to start rotating, the force of the steering engine is transmitted to the swing arm through the reduction gear, and meanwhile, the position detector sends back the signal to judge whether the positioning is achieved.

At present, steering engines in the market have poor waterproof performance, and most steering engines have no waterproof function. And a part of steering engines with waterproof functions are subjected to simple waterproof treatment. The deep water operation is carried out. Especially, when the steering engine is operated in deep sea, the high pressure of the deep water environment and the corrosivity of seawater easily break through simple waterproof treatment, enter the steering engine and damage the steering engine.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing steering engine is poor in waterproof performance and cannot be suitable for deep sea operation.

In order to solve the problems, the technical scheme is as follows:

a waterproof steering engine comprises a steering engine body and a steering engine upper cover; the steering engine upper cover is provided with a bearing hole, the steering engine body is provided with a transmission bearing, and the transmission bearing penetrates through the bearing hole to be connected with the steering engine upper cover; a sealing ring is arranged on the transmission bearing, and a sealing groove is arranged on the sealing ring; the bearing hole is provided with a diversion trench; when the steering engine upper cover is combined with the steering engine body, the sealing ring is hidden in the steering engine upper cover, and the sealing groove is tightly attached to the diversion groove; when the waterproof steering engine enters underwater, water flows into the sealing groove through the guide groove, pressure is generated to enable the sealing ring to expand, and the air tightness of the waterproof steering engine is enhanced.

The traditional waterproof steering engine has the waterproof treatment that water flow is resisted outside as far as possible, but in the environment of deepwater operation, the water pressure is doubled once the steering engine goes deep into the water because the pressure of water is in a direct proportion to the depth. The water-proof design that the tradition only resisted outside rivers is in the same nominal of shape under one or two hundred pressures under water, and the water pressure of high strength can destroy such water-proof design very fast, and then gets into inside the steering wheel, destroys the steering wheel.

The utility model discloses adopting ingeniously to hide elastic sealing washer in the steering wheel upper cover, the seal groove closely laminates with the guiding gutter, and the groove arris of seal groove pastes the design of pasting tightly on the edge of guiding gutter promptly, and when getting into under water, rivers form pressure to the sealing washer from inside in entering into the seal groove along the groove arris of seal groove through the guiding gutter, cause the expansion of sealing washer inflation, have strengthened the gas tightness of waterproof steering wheel effectively. Therefore, in the range that the sealing ring can bear, the deeper the water, the higher the pressure, and the stronger the air tightness of the waterproof steering engine.

Preferably, the waterproof steering engine further comprises a steering engine lower cover, and the steering engine body is connected with the steering engine lower cover; rubber ring grooves are respectively formed in the joint of the steering engine upper cover and the steering engine body and the joint of the steering engine body and the steering engine lower cover, and sealing rubber rings are arranged in the rubber ring grooves; when the steering engine upper cover is combined with the steering engine body and the steering engine body is combined with the steering engine lower cover, the sealing rubber ring is hidden in the rubber ring groove.

The rubber ring groove is arranged in the steering engine upper cover, the steering engine body and the steering engine lower cover in a two-half groove mode respectively. When the sealing rubber ring is combined, the two half grooves are combined to hide the sealing rubber ring, so that the exposure of the sealing rubber ring is avoided, and the corrosion of seawater is avoided.

Preferably, the sealing rubber ring is double-layer and is arranged in the rubber ring groove.

Within the range that the rubber ring groove can accommodate, the sealing rubber ring can be designed in a single layer or a plurality of layers according to the requirement, generally in a double-layer design, so that the air tightness is enhanced.

Preferably, a glue filling hole is formed in the lower cover of the steering engine; and after the steering engine body is combined with the steering engine lower cover, pouring colloid into the glue pouring hole and vacuumizing to seal the inner cavity of the steering engine body.

Preferably, after the inner cavity is sealed, a sealing screw is arranged in the glue filling hole to be connected with the steering engine body, and the glue filling hole is sealed.

Preferably, a driving motor and a circuit board are arranged in the inner cavity, and the driving motor is connected with the transmission bearing.

Since in deep water environments, there is a possibility of leakage even if a careful waterproofing design is performed. Therefore the utility model discloses still designed the encapsulating hole very much, after waterproof steering wheel makes up, pour into the colloid and evacuation from the encapsulating hole, later the combination that rethread seal can make lower cover and body is inseparabler. Simultaneously, the colloid can wrap up components and parts such as drive motor and circuit board in the inner chamber, even have some rivers to invade steering wheel inside like this, also be difficult to cause destruction to components and parts such as drive motor and circuit board.

Preferably, the transmission bearing divides beam section and pinion shaft section, the sealing washer sets up on the beam section.

Because the utility model discloses a guiding gutter and the design of sealing washer mutually supporting, the sealing washer can not expose in the steering wheel outside, can part totally with the tooth axle section that transmission bearing divides, and tightly hugs closely on the smooth axle section, avoids traditional design sealing washer cover to have the space in tooth axle section.

Preferably, the sealing ring is a Y-shaped sealing ring.

The Y-shaped sealing ring is attached to the coupling surface of the sealing pair by means of the opened lip edge. In the absence of internal pressure, only a small contact pressure is generated by the deformation of the lip tip. In the case of sealing, at every point of contact with the sealing medium there is a normal pressure equal to the pressure of the medium, so that the bottom of the lip ring will be compressed axially, the lip will be compressed circumferentially, the contact with the sealing surface will be widened and the contact stress will increase. When water flows into the sealing groove, the internal pressure rises, the distribution form and the size of the contact pressure are further changed, and the lip is matched with the sealing surface more tightly, so that the sealing performance is better, namely the self-sealing effect of the Y-shaped ring. Due to the self-sealing effect, the deeper the steering engine goes into water, the stronger the sealing performance is.

Preferably, the drive bearing is made of ceramic.

The traditional bearing is made of metal, but in an underwater environment of 100-200 m and generally in an underwater environment, the transmission bearing made of ceramic can better resist the corrosion of seawater.

Compared with the prior art, use the utility model discloses there is following beneficial effect:

1. the sealing ring is hidden in the upper cover of the steering engine, and the sealing groove and the diversion groove are matched with each other to effectively guide water flow instead of simply preventing blockage. And the air tightness of the waterproof steering engine is enhanced by using the pressure generated by the guided water flow.

2. A resilient Y-ring seal is used. Because the transmission bearing is pivoted when the work, when the load is great, just appear easily because the concentricity leads to the eccentric phenomenon of transmission shaft inadequately, and the atress of transmission bearing and sealing washer in different directions has the deviation this moment, just laminates inhomogeneously easily, and is loose while tight. After the elastic Y-shaped sealing ring is used, the elastic force can compensate the deviation in stress, and the compensation is given in real time along with the position change of the rotating shaft. After entering underwater, the water flow forms pressure on the Y-shaped sealing ring from the inside of the sealing groove, so that the elasticity is increased, the compensation is timely in place, and the compensation elasticity is good.

3. The sealing rubber ring is hidden in the rubber ring groove and mainly made of an anticorrosive low-temperature-resistant material, the fit degree of the sealing ring and the sealing groove can be improved when the sealing rubber ring is hidden in the rubber ring groove, the airtight effect is enhanced, meanwhile, the exposure of the sealing rubber ring is avoided, and the corrosion of seawater is avoided.

4. It seals to have designed encapsulating pore pair waterproof steering wheel and glued, seals encapsulating pore with sealing screw again, has guaranteed holistic complete sealing, avoids components and parts such as actuating motor and circuit board to suffer the erosion of sea water.

5. The ceramic drive bearing can better resist the corrosion of seawater.

Drawings

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

FIG. 2 is another schematic structural view of the present invention;

FIG. 3 is an enlarged view of the upper cover of the steering engine of the present invention;

fig. 4 is a schematic view of the cross-sectional structure of the sealing ring of the present invention.

The steering engine comprises a steering engine body 1, a transmission bearing 101, an optical axis section 1011, a gear shaft section 1012, a sealing ring 102, a sealing groove 1021, an inner cavity 103, a circuit board 1031, a sealing screw 1032, a steering engine upper cover 2, a bearing hole 201, a diversion trench 2011, a steering engine lower cover 3, a glue filling hole 301 and a rubber ring groove 4.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Reference will now be made in detail to embodiments of the present patent, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present patent and are not to be construed as limiting the present patent.

In the description of this patent, it is to be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for the convenience of describing the patent and for the simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the patent.

In the description of this patent, it is noted that unless otherwise specifically stated or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly and can include, for example, fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate. The novel forms are described in further detail.

As shown in fig. 1 and 2, the utility model relates to a waterproof steering engine, which comprises a steering engine body 1, a steering engine upper cover 2 and a steering engine lower cover 3. A transmission bearing 101 is arranged on the steering engine body 1, and the transmission bearing 101 is preferably made of ceramic. The optical axis section 1011 and the gear axis section 1012 of the transmission bearing 101 are divided, the sealing ring 102 is arranged on the optical axis section 1011, and the sealing ring 102 is an elastic Y-shaped sealing ring. Seal ring 102 is provided with a seal groove 1021. The steering engine upper cover 2 is provided with a bearing hole 201, and the bearing hole 201 is provided with a diversion trench 2011. Steering wheel body 1 steering wheel upper cover 2 is connected, and transmission bearing 101 passes bearing hole 201, and sealing washer 102 is hidden in steering wheel upper cover 2, and seal groove 1021 closely laminates with guiding gutter 2011, and the edge of tightly pasting on guiding gutter 2011 is closed to the trough edge of seal groove 1021. When the waterproof steering engine enters underwater, water flow enters the sealing groove 1021 along the groove edge of the sealing groove 1021 through the diversion groove 2011, pressure is generated to enable the sealing ring 102 to expand and expand, and air tightness of the waterproof steering engine is enhanced. Thus, the deeper the water, the higher the pressure, and the stronger the air tightness of the waterproof steering engine, within the range that the sealing ring 102 can bear.

The lower steering engine cover 3 is provided with a glue filling hole 301, a driving motor (not shown) and a circuit board 1031 are arranged in the inner cavity 103 of the steering engine body 1, and the driving motor is connected with the transmission bearing 101. Steering wheel body 1 connects steering wheel lower cover 3, and the colloid is followed encapsulating hole 301 and is poured into and the evacuation, puts into sealing screw 3012 from encapsulating hole 301 again, makes sealing screw 3012 be connected with steering wheel body 1, seals the encapsulating hole makes steering wheel lower cover 3 inseparabler with steering wheel body 1's combination, seals the inner chamber 103 of steering wheel body 1 simultaneously, wraps up the protection with electric components such as driving motor and circuit board 1031.

The rubber ring groove 4 is formed in the joints of the steering engine upper cover 2, the steering engine body 1 and the steering engine lower cover 3 in two half grooves respectively, a sealing rubber ring (not shown) is arranged in the rubber ring groove 4, and the sealing rubber ring is preferably double-layer. When the steering engine upper cover 2 is combined with the steering engine body 1 and the steering engine lower cover 3, the sealing rubber ring is hidden in the rubber ring groove 4 by combining the two half grooves, so that the exposure of the sealing rubber ring is avoided, and the corrosion of seawater is avoided.

Other parts which are not described in the embodiment are all fixed by adopting the prior art in a conventional manner such as other necessary gears and components, and the connection of the steering engine body 1, the steering engine upper cover 2, the steering engine lower cover and the like 3 by using mounting screws and the like.

The above description is only a preferred embodiment of the present invention, and certainly should not be taken as limiting the scope of the invention, which is defined by the claims and their equivalents.

Claims

1. A waterproof steering engine is characterized by comprising a steering engine body and a steering engine upper cover; the steering engine upper cover is provided with a bearing hole, the steering engine body is provided with a transmission bearing, and the transmission bearing penetrates through the bearing hole to be connected with the steering engine upper cover; a sealing ring is arranged on the transmission bearing, and a sealing groove is arranged on the sealing ring; the bearing hole is provided with a diversion trench; when the steering engine upper cover is combined with the steering engine body, the sealing ring is hidden in the steering engine upper cover, and the sealing groove is tightly attached to the diversion groove; when the waterproof steering engine enters underwater, water flows into the sealing groove through the guide groove, pressure is generated to enable the sealing ring to expand, and the air tightness of the waterproof steering engine is enhanced.

2. The waterproof steering engine of claim 1, further comprising a lower steering engine cover, wherein the steering engine body is connected to the lower steering engine cover; rubber ring grooves are respectively formed in the joint of the steering engine upper cover and the steering engine body and the joint of the steering engine body and the steering engine lower cover, and sealing rubber rings are arranged in the rubber ring grooves; when the steering engine upper cover is combined with the steering engine body and the steering engine body is combined with the steering engine lower cover, the sealing rubber ring is hidden in the rubber ring groove.

3. The waterproof steering engine of claim 2, wherein the sealing rubber ring is double-layered and is disposed in the rubber ring groove.

4. The waterproof steering engine of claim 2, wherein the lower steering engine cover is provided with glue filling holes; and after the steering engine body is combined with the steering engine lower cover, pouring colloid into the glue pouring hole and vacuumizing to seal the inner cavity of the steering engine body.

5. The waterproof steering engine of claim 4, wherein after the inner cavity is sealed, a sealing screw is inserted into the glue filling hole to connect with the steering engine body, so as to seal the glue filling hole.

6. The waterproof steering engine of claim 4, wherein a drive motor and a circuit board are disposed in the inner cavity, and the drive motor is connected to the transmission bearing.

7. The waterproof steering engine of claim 1, wherein the transmission bearing is provided with a light splitting shaft section and a gear shaft section, and the sealing ring is arranged on the light splitting shaft section.

8. The waterproof steering engine of claim 1, wherein the seal ring is a Y-shaped seal ring.

9. The waterproof steering engine of claim 1, wherein the drive bearing is made of ceramic.