CN212203119U

CN212203119U - Seal structure for rotary vane steering engine cylinder body

Info

Publication number: CN212203119U
Application number: CN202020928666.4U
Authority: CN
Inventors: 丁汝森; 糜翔; 刘强; 黄育青
Original assignee: Nanjing Nautical Instrument Plant No2 Co ltd
Current assignee: Nanjing Nautical Instrument Plant No2 Co ltd
Priority date: 2020-05-27
Filing date: 2020-05-27
Publication date: 2020-12-22
Anticipated expiration: 2030-05-27

Abstract

The utility model discloses a seal structure for a rotary vane steering engine cylinder body, which relates to the seal field of a rotary vane steering engine and aims to solve the problems that in the prior art, an oil storage cavity of the rotary vane steering engine is easy to generate gaps in the long-term use process, hydraulic oil is leaked, and the normal work of the steering engine is influenced; when the rotor rotates, the side face of the sealing ring is abraded, the adjusting piece increases the height of the sealing ring extending out of the sealing groove, the possibility that hydraulic oil leaks through a gap is reduced, the possibility that the pressure in an oil outlet cavity is reduced, and the possibility that the steering engine cannot normally work is reduced.

Description

Seal structure for rotary vane steering engine cylinder body

Technical Field

The utility model relates to a change the sealed field of leaf steering wheel, more specifically say, it relates to a change seal structure for leaf steering wheel cylinder body.

Background

The rotary vane steering engine is a power device for realizing steering and course control of a ship, and mainly realizes rotation of a rotary vane through a hydraulic system arranged in a cylinder body, so that the rotation of the rotary vane is directly influenced by the sealing performance of the cylinder body.

In the prior art, the sealing structure of the cylinder body of the rotary vane steering engine comprises a sealing gasket 03 arranged in the cylinder body 01, a sealing groove 02 for inserting the sealing gasket 03 is annularly arranged on the end wall of the cylinder body 01, and the other side of the sealing gasket 03 extends out of the sealing groove 02 and is abutted against the side face of the rotor 04, so that sealing is formed between the rotor 04 and the oil storage cavity 05.

However, after hydraulic oil is injected into the oil storage cavity, hydraulic pressure is formed in the oil storage air to drive the rotor to rotate, the side face of the rotor rubs with the surface of the sealing washer, the sealing washer is abraded, one side, extending out of the sealing groove, of the sealing washer is abraded in the long-term use process, the side face of the rotor is abutted to the side face of the oil cylinder, when the rotary vane steering engine is used continuously, the rotor rotates, the end face of the cylinder body is abraded, gaps are formed between the rotor and the oil storage cavity, oil in the oil storage cavity leaks through the gaps, and normal work of the rotary vane steering engine is affected.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a seal structure for commentaries on classics leaf steering wheel cylinder body, its advantage lies in according to the sealed position of filling up the sealed wearing and tearing condition adjustment pad of sealed pad, reduces wearing and tearing and the possibility that produces the gap after the contact each other between the adjacent terminal surface of cylinder body, reduces the possibility that liquid passes through the gap seepage, is favorable to reducing the possibility that influences the normal work of commentaries on classics leaf steering wheel.

The above object of the present invention can be achieved by the following technical solutions:

the utility model provides a rotating vane steering wheel seal structure for cylinder body, is including setting up the seal groove on the oil storage cavity inside wall, be equipped with the sealing washer in the seal groove, one side of sealing washer stretches out the seal groove, one side that the sealing washer stretches out the seal groove is inconsistent with the rotor side, be equipped with in the seal groove with a plurality of regulating part of regulation sealing washer height, a plurality of the regulating part is followed the circumference equipartition of seal groove.

Through adopting above-mentioned technical scheme, when installing, earlier set up the regulating part in the seal groove, install the sealing washer in the seal groove again, install the rotor, cooperation between sealing washer and the rotor, form sealedly, when the rotor rotates, the side of wearing and tearing sealing washer, the regulating part increases the height that the sealing washer stretches out the seal groove, with this possibility that reduces rotor and oil storage cavity direct contact, reduce the possibility of rotor at the oil storage cavity that rotates in-process wearing and tearing, reduce the possibility that rotor and oil storage cavity directly produced the gap, reduce the possibility that hydraulic oil revealed through the gap, be favorable to reducing the possibility that influences the normal work of steering wheel.

Further, the regulating part is including setting up regulating spring on the tank bottom of seal groove, regulating spring keeps away from the one end of seal groove tank bottom and the side of sealing washer inconsistent.

By adopting the technical scheme, when the rotor is installed, the rotor extrudes the sealing ring, the sealing ring extrudes the adjusting spring, and the adjusting spring is in a compressed state; when the sealing ring is worn, the adjusting spring gradually recovers deformation, so that the sealing ring is pushed to extend out of the sealing groove, and the possibility that the side face of the rotor is contacted with the side wall of the oil storage cavity is reduced.

Furthermore, a clamping groove for the adjusting spring to extend into is formed in one side, far away from the rotor, of the sealing ring, a supporting block is arranged on the end wall of the adjusting spring, and one side, far away from the adjusting spring, of the supporting block is abutted to the bottom of the clamping groove.

Through adopting above-mentioned technical scheme, the supporting shoe increases the area of contact of regulating spring and sealing washer, and when the sealing washer extrusion regulating spring, reduces the pressure that the regulating spring produced the sealing washer, when reducing the regulating spring extrusion sealing washer, the sealing washer takes place the possibility of warping to reduce the possibility that produces the gap between sealing washer and the rotor.

Further, the regulating part is including setting up the regulating plate in the seal groove, be equipped with the spout on the relative groove lateral wall of seal groove, the back of the back both sides of regulating plate are located two spouts respectively, the roof of regulating plate is inconsistent with the side of sealing washer, just be equipped with a plurality of buffer spring along its thickness direction on the roof of regulating plate, it is a plurality of buffer spring follows the circumference equipartition of regulating plate, buffer spring keeps away from the one end of regulating plate and the groove lateral wall fixed connection of spout.

Through adopting above-mentioned technical scheme, when the installation, the sealing washer inserts in the seal groove, and the regulating plate is extruded to the sealing washer, thereby the regulating plate pulling buffer spring takes place tensile deformation, and when the rotor rotates, behind the wearing and tearing sealing washer, buffer spring resumes deformation gradually to drive the regulating plate and remove, the adjusting plate promotes the sealing washer removal again, thereby the sealing washer stretches out the seal groove smoothly and the rotor side is inconsistent.

Furthermore, the opposite groove side wall of the sliding groove is provided with a guide post, and the guide post penetrates through the adjusting plate and is connected with the adjusting plate in a sliding mode.

Through adopting above-mentioned technical scheme, the guide post restriction regulating plate's moving direction reduces the regulating plate and takes place the possibility of skew in the removal process.

Furthermore, one side, away from the buffer spring, of the adjusting plate is provided with a resisting spring, and one end, away from the adjusting plate, of the resisting spring is abutted against the side wall of the groove of the sliding groove.

Through adopting above-mentioned technical scheme, when the installation, when the sealing washer promoted the regulating plate and removed, the regulating plate extrusion supported tight spring, supported tight spring and produced compression deformation, thereby the regulating plate receives the reaction force who supports tight spring, increases the pressure between regulating plate and the sealing washer, is favorable to the regulating plate to promote the sealing washer smoothly and removes.

Further, be equipped with the spacing post of a plurality of along regulating plate circumference equipartition on the roof of regulating plate, be equipped with on the side of sealing washer and supply spacing post male spacing groove, the roof of spacing post is contradicted with the tank bottom wall in spacing groove.

Through adopting above-mentioned technical scheme, when the installation seal groove, the spacing groove inserts in the spacing post to the degree of depth of restriction sealing washer insertion seal groove.

Further, the outside cover of spacing post is equipped with spacing spring, spacing spring's one end is inconsistent with the side of regulating plate, and the other end is inconsistent with the tank bottom wall in spacing groove.

Through adopting above-mentioned technical scheme, in the sealing groove was inserted to the sealing washer, spacing spring inserted the spacing inslot, and the spacing spring of tank bottom extrusion of spacing groove, the compression deformation takes place for spacing spring, thereby spacing spring reaction and sealing washer to this further restriction sealing washer inserts the degree of depth in the sealing groove.

To sum up, the utility model discloses following beneficial effect has:

1. when the oil storage cavity is installed, the adjusting piece is arranged in the sealing groove, the sealing ring is inserted into the sealing groove, the rotor is installed, and the sealing ring is matched with the side face of the rotor, so that the oil storage cavity is sealed; when the steering engine is used, the rotor rotates to abrade the sealing ring, and the adjusting piece synchronously adjusts the height of the sealing ring extending out of the sealing groove, so that the possibility of direct contact between the side surface of the rotor and the oil storage cavity is reduced, the possibility of abrasion of the oil storage cavity by the rotor is reduced, the possibility of gaps generated between the rotor and the oil storage cavity is reduced, the possibility of leakage of hydraulic oil through the gaps is reduced, and the possibility of influencing the normal work of the steering engine is reduced;

2. the guide columns limit the moving direction of the adjusting plate, so that the possibility of deviation of the adjusting plate in the moving process is reduced;

3. when the sealing ring is installed, the adjusting plate is extruded, the adjusting plate extrudes the abutting spring, and the abutting spring acts against the adjusting plate, so that the pressure between the adjusting plate and the sealing ring is increased, and the adjusting plate is favorable for smoothly pushing the sealing ring to extend out of the sealing groove after the sealing ring is abraded.

Drawings

Fig. 1 is a schematic structural diagram of the background art.

Fig. 2 is a schematic structural diagram of the first embodiment.

Fig. 3 is a sectional view taken along line a-a in fig. 2.

Fig. 4 is an enlarged view of a portion B in fig. 3.

Fig. 5 is a schematic structural diagram of the second embodiment.

Fig. 6 is a sectional view taken along line C-C in fig. 5.

Fig. 7 is an enlarged view of a portion D in fig. 6.

In the figure: 1. a cylinder body; 11. an oil storage cavity; 12. a sealing groove; 121. a chute; 122. a guide post; 123. an adjustment hole; 13. a seal ring; 131. a card slot; 132. a limiting groove; 14. a rotor; 2. an adjustment member; 21. adjusting the spring; 211. a support block; 22. an adjusting plate; 221. a buffer spring; 222. a limiting column; 223. a limiting spring; 224. the spring is pressed tightly.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The first embodiment is as follows:

referring to fig. 2 and 3, the sealing structure for the cylinder body of the rotary vane steering engine comprises two sealing grooves 12 arranged on the inner side wall of an oil storage cavity 11, wherein the sealing grooves 12 are annular, the two sealing grooves 12 are respectively positioned on two opposite end faces of the oil storage cavity 11, a sealing ring 13 is inserted into the sealing groove 12, one side of the sealing ring 13 extends out of the sealing groove 12, and one side of the sealing ring 13 extending out of the sealing groove 12 is abutted to the side face of a rotor 14.

Referring to fig. 3, a plurality of adjusting pieces 2 for adjusting the height of the sealing ring 13 are arranged in the sealing groove 12, and the plurality of adjusting pieces 2 are uniformly distributed along the circumferential direction of the sealing groove 12; during installation, the adjusting piece 2 is installed in the sealing groove 12, the sealing ring 13 is inserted into the sealing groove 12, the rotor 14 is installed, the side face of the rotor 14 is abutted to the side face of the sealing ring 13, and the oil storage cavity 11 is sealed.

Referring to fig. 3, in the working process of the steering engine, a rotor 14 rotates, the side face of the rotor 14 rubs against the side face of a sealing ring 13, so that the side face of the sealing ring 13 is abraded, the height is reduced, the adjusting piece 2 increases the height of the sealing ring 13 extending out of a sealing groove 12, the possibility that the rotor 14 is in direct contact with the side face of an oil storage cavity 11 is reduced, the possibility that the rotor 14 abrades the oil storage cavity 11 in the rotating process is reduced, the possibility that the rotor 14 and the oil storage cavity 11 directly generate gaps is reduced, the possibility that hydraulic oil leaks through the gaps is reduced, and the possibility that the normal.

Referring to fig. 4, the adjusting member 2 includes an adjusting spring 21, an adjusting hole 123 is formed in the bottom wall of the sealing groove 12, an end wall of the adjusting spring 21 is fixedly disposed on the bottom wall of the adjusting hole 123, the adjusting spring 21 is disposed along the thickness direction of the sealing ring 13, a supporting block 211 is disposed at one end of the adjusting spring 21 away from the bottom wall of the sealing groove 12, and the supporting block 211 is made of modified polytetrafluoroethylene.

Referring to fig. 4, a locking groove 131 is formed at one side of the sealing ring 13 inserted into the sealing groove 12, the supporting block 211 is inserted into the locking groove 131, and a side surface of the supporting block 211 is abutted against a bottom wall of the locking groove 131; when the rotor is installed, the adjusting spring 21 is firstly welded in the sealing groove 12, the supporting block 211 is welded on the adjusting spring 21, the sealing ring 13 is finally inserted, the supporting block 211 is inserted into the clamping groove 131, the rotor 14 is installed, the side face of the rotor 14 extrudes the sealing ring 13, the sealing ring 13 extrudes the supporting block 211, the supporting block 211 extrudes the adjusting spring 21, and the adjusting spring 21 generates compression deformation.

Referring to fig. 4, when the steering engine is in operation, after the rotor 14 wears the sealing ring 13, the adjusting spring 21 is synchronously and gradually restored to deform, so as to push the supporting block 211 to move, and the supporting block 211 pushes the sealing ring 13 to smoothly extend out of the sealing groove 12.

The implementation principle of the above embodiment is as follows: when the oil storage cavity 11 is installed, the adjusting piece 2 is installed in the sealing groove 12, the sealing ring 13 is inserted into the sealing groove 12, the rotor 14 is installed, and the side face of the rotor 14 is abutted to the side face of the sealing ring 13, so that the oil storage cavity 11 is sealed; when the steering engine works, the rotor 14 rotates, the side face of the rotor 14 rubs with the top wall of the sealing ring 13, so that the sealing ring 13 is abraded, the adjusting piece 2 synchronously adjusts the height of the sealing ring 13, the possibility that the rotor 14 is in direct contact with the oil storage cavity 11 is reduced, the possibility that the rotor 14 abrades the oil storage cavity 11 to generate gaps is reduced, the possibility that hydraulic oil leaks through the gaps is reduced, and the possibility that the normal work of the steering engine is influenced is reduced.

Example two:

a sealing structure for a rotary vane steering engine cylinder body 1 is based on a first embodiment and is different from the first embodiment by referring to fig. 5 and 6: regulating part 2 includes annular regulating plate 22 and a plurality of buffer spring 221 (refer to fig. 7), it is equipped with spout 121 to encircle the relative groove lateral wall of seal groove 12, be equipped with a plurality of guide post 122 (refer to fig. 7) on the relative groove lateral wall of spout 121, guide post 122 sets up along the thickness direction of sealing washer 13, the circumference equipartition of spout 121 is followed to a plurality of guide post 122, regulating plate 22 sets up in spout 121, guide post 122 passes regulating plate 22, regulating plate 22 slides with guide post 122 and is connected, regulating spring 21 one end and regulating plate 22's roof fixed connection, the other end and spout 121's groove lateral wall fixed connection, regulating spring 21 cover is established on guide post 122.

Referring to fig. 7, a plurality of limiting posts 222 are disposed on the top wall of the adjusting plate 22, the limiting posts 222 are located in the sealing groove 12, one side of the sealing ring 13, which is inserted into the sealing groove 12, is provided with limiting grooves 132 for inserting the limiting posts 222, the limiting posts 222 are cylindrical, the axes of the limiting posts 222 are parallel to the axes of the guide posts 122, the outer side sleeves of the limiting posts 222 are provided with limiting springs 223, the bottom wall of the sealing ring 13 is provided with limiting posts 222 and limiting springs 223 for inserting the limiting grooves 132, and the end walls of the limiting springs 223 are abutted to the bottoms of the limiting grooves 132.

Referring to fig. 7, a plurality of abutting springs 224 are arranged on the bottom wall of the adjusting plate 22, the abutting springs 224 are uniformly distributed along the circumferential direction of the adjusting plate 22, the abutting springs 224 are sleeved on the guide posts 122, and one end of the abutting springs 224, which is far away from the adjusting plate 22, abuts against the side wall of the chute 121.

Referring to fig. 7, when mounting, the guide post 122 is firstly inserted into the adjusting plate 22, the buffer spring 221 and the abutting spring 224 are sleeved on the guide post 122, the adjusting plate 22 is then mounted in the sealing groove 12, the sealing ring 13 is inserted into the sealing groove 12, the rotor 14 is mounted, the rotor 14 presses the sealing ring 13, the sealing ring 13 presses the adjusting plate 22, the adjusting plate 22 synchronously drives the buffer spring 221 and the abutting spring 224 to deform, the buffer spring 221 generates tensile deformation, the abutting spring 224 generates compression deformation, meanwhile, the limiting spring 223 is inserted into the limiting groove 132, and the groove bottom wall of the limiting groove 132 presses the limiting spring 223 to generate compression deformation.

Referring to fig. 7, when the steering engine works, when the rotor 14 wears the seal ring 13, the limiting spring 223, the buffer spring 221 and the abutting spring 224 are deformed synchronously, so as to drive the adjusting plate 22 to move, the guide post 122 limits the moving direction of the adjusting plate 22, the adjusting plate 22 pushes the limiting post 222, and the limiting post 222 extrudes the seal ring 13, so as to smoothly push the seal ring 13 to extend out of the seal groove 12.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims

1. The utility model provides a change seal structure for vane steering wheel cylinder body, is including setting up seal groove (12) on oil storage cavity (11) inside wall, its characterized in that: be equipped with sealing washer (13) in seal groove (12), one side of sealing washer (13) is stretched out seal groove (12), one side that sealing washer (13) stretches out seal groove (12) is inconsistent with rotor (14) side, be equipped with in seal groove (12) and be used for adjusting a plurality of regulating part (2), a plurality of regulating part (2) of sealing washer (13) height are followed the circumference equipartition of seal groove (12).

2. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 1, characterized in that: the adjusting part (2) comprises an adjusting spring (21) arranged at the bottom of the sealing groove (12), and one end, away from the bottom of the sealing groove (12), of the adjusting spring (21) is abutted to the side face of the sealing ring (13).

3. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 2, characterized in that: one side of the sealing ring (13) far away from the blades of the rotor (14) is provided with a clamping groove (131) for the adjusting spring (21) to extend into, the end wall of the adjusting spring (21) is provided with a supporting block (211), and one side of the supporting block (211) far away from the adjusting spring (21) is abutted to the bottom of the clamping groove (131).

4. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 1, characterized in that: regulating part (2) is including setting up regulating plate (22) in seal groove (12), be equipped with spout (121) on the relative groove lateral wall of seal groove (12), the both sides of keeping away from of regulating plate (22) are located two spout (121) respectively, the roof of regulating plate (22) is inconsistent with the side of sealing washer (13), just be equipped with a plurality of buffer spring (221) along its thickness direction on the roof of regulating plate (22), a plurality of buffer spring (221) are followed the circumference equipartition of regulating plate (22), the one end that regulating plate (22) were kept away from in buffer spring (221) and the groove lateral wall fixed connection of spout (121).

5. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 4, characterized in that: be equipped with guide post (122) on the relative groove lateral wall of spout (121), guide post (122) pass regulating plate (22) and with regulating plate (22) sliding connection.

6. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 4, characterized in that: one side, away from the buffer spring (221), of the adjusting plate (22) is provided with a pressing spring (224), and one end, away from the adjusting plate (22), of the pressing spring (224) is abutted against the side wall of the sliding groove (121).

7. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 4, characterized in that: be equipped with spacing post (222) of a plurality of edge regulating plate (22) circumference equipartition on the roof of regulating plate (22), be equipped with on the side of sealing washer (13) and supply spacing post (222) male spacing groove (132), the roof of spacing post (222) is contradicted with the tank bottom wall in spacing groove (132).

8. The sealing structure for the cylinder body of the rotary vane steering engine according to claim 7, characterized in that: the outside cover of spacing post (222) is equipped with spacing spring (223), the one end of spacing spring (223) is inconsistent with the side of regulating plate (22), and the other end is contradicted with the tank bottom wall of spacing groove (132).