CN219388616U

CN219388616U - Sealing structure for hydraulic motor

Info

Publication number: CN219388616U
Application number: CN202223561101.5U
Authority: CN
Inventors: 郭海涛; 刘登高
Original assignee: Shandong Youxing Hydraulic Technology Co ltd
Current assignee: Shandong Youxing Hydraulic Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-07-21
Anticipated expiration: 2032-12-30

Abstract

The utility model discloses a sealing structure for a hydraulic motor, which relates to the technical field of hydraulic motors and comprises a motor shell, wherein one side of the motor shell is fixedly connected with a motor right end cover, one side of the motor right end cover is provided with a flange plate, the inner side of the flange plate is in threaded connection with four fixing bolts, the four fixing bolts are in threaded connection with the inner side of the motor right end cover, a rotating shaft is arranged in the motor shell, and one end of the rotating shaft is fixedly connected with a motor gear, and the sealing structure has the beneficial effects that: through first sealing washer and the second sealing washer that rotate the setting with first sealing groove and second sealing groove respectively, owing to set up for fixed between with the pivot, consequently help preventing to appear rotation friction with the pivot between, played sealed effect simultaneously, laminating mutually between supplementary sealing ring and the interior sealing ring, the setting of laminating mutually rotates between second sealing washer and the interior sealing ring through the sealed effect of sealing washer, all assist the leakproofness when having promoted the gim peg rotation, sealed effectual.

Description

Sealing structure for hydraulic motor

Technical Field

The utility model relates to a sealing structure, in particular to a sealing structure for a hydraulic motor, and belongs to the technical field of hydraulic motors.

Background

In a drilling type side-wall coring instrument, a hydraulic motor plays a very key role, and in operation, hydraulic oil drives a motor rotor to rotate, converts hydraulic pressure into drill bit rotating force, drives a diamond hollow drill bit and drills a core;

the improved sealing structure for the hydraulic motor disclosed by the application number of CN201820058784.7 is also an increasingly mature technology, and proposes that the traditional sealing mode is limited in pressure resistance due to the limitation of single-lip sealing, the sealing reliability cannot be guaranteed under the working condition of large slurry depth, the upper shell and the lower shell of the motor are required to be disassembled in replacement sealing, and other mechanical structures are connected to the outer part of the motor shell, so that the problem that the sealing replacement is very troublesome is solved, the dustproof ring structure is eliminated, the sealing structure of the utility model can be directly replaced by pulling out from between the bearing inner ring and the motor lower shell through the threaded holes on the end faces of the retainer after the end cover flange, the lower floating sealing flange and the clamp spring are removed, and the sealing structure for the hydraulic motor disclosed by the application number of CN202121878386.8 is provided through a specific technical structure, and the technical defects of inconvenient disassembly of an oil disc and the like are really overcome, but the two hydraulic motors have the following defects in the use process:

1) The auxiliary structure for improving the rotation smoothness is not arranged in the sealing parts, so that the smoothness of the rotation fit between the sealing parts is inconvenient to improve.

Disclosure of Invention

The utility model aims to provide a sealing structure for a hydraulic motor, which is used for solving the problem that the prior art is inconvenient to promote the smoothness of rotation lamination among sealing components because an auxiliary structure for promoting the smoothness of rotation is not arranged in a plurality of sealing components.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a be used for hydraulic motor seal structure, includes motor housing, one side fixedly connected with motor right-hand member lid of motor housing, one side of motor right-hand member lid is equipped with the ring flange, the inboard threaded connection of ring flange has four dead bolts, four dead bolts all with the inboard threaded connection of motor right-hand member lid, motor housing's inside is equipped with the pivot, the one end fixedly connected with motor gear of pivot, motor housing's opposite side fixedly connected with motor left end lid, first seal groove has been seted up to one side of motor right-hand member lid, the second seal groove has been seted up to the opposite side of motor right-hand member lid, the inside of motor right-hand member lid is equipped with sealing component, sealing component includes first sealing washer, auxiliary sealing ring and auxiliary assembly, first sealing washer is fixed to be in the outside of dead bolt, one side fixedly connected with sealing washer, one side fixedly connected with auxiliary sealing ring of sealing washer is first, auxiliary assembly includes interior sealing ring and second sliding ring, interior fixedly set up the inboard of motor right-hand member, the inside of motor right-hand member is equipped with first sliding ring, the second sliding ring is fixedly connected with the inside of second sliding ring.

Preferably, the outer side of the first sealing ring is rotationally connected with the inner side of the first sealing groove.

Preferably, one side of the second slip ring is attached to one side of the first slip ring, and the outer side of the first slip ring is attached to the inner side of the sliding groove.

Preferably, one side of the auxiliary sealing ring is rotationally connected with one side of the inner sealing ring, and one side of the auxiliary sealing ring is attached to one side of the inner sealing ring.

Preferably, the outer side of the second sealing ring is rotationally connected with the inner side of the second sealing groove, and the inner side of the second sealing ring is fixedly connected with the outer side of the rotating shaft.

Compared with the related art, the sealing structure for the hydraulic motor has the following beneficial effects:

1. the first sealing ring and the second sealing ring are fixedly arranged between the first sealing ring and the rotating shaft, so that the first sealing ring and the second sealing ring are beneficial to preventing rotating friction between the first sealing ring and the rotating shaft, and simultaneously play a sealing role;

2. a be used for hydraulic motor seal structure, through sliding laminating mutually between first sliding ring and the second sliding ring, its smooth nature that slides mutually is supplementary to have promoted the smooth nature of rotating the laminating between supplementary sealing ring and the interior sealing ring, helps later to alleviate the frictional force of contact between the two, and does not influence the holistic leakproofness of part between first sealing washer to the second sealing washer.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a partial cross-sectional structure of the present utility model;

FIG. 3 is a schematic diagram of a partial cross-sectional structure of the present utility model;

FIG. 4 is an enlarged schematic view of the structure of FIG. 3A according to the present utility model;

fig. 5 is a schematic view of a partial structure of the present utility model.

In the figure: 1. a motor housing; 2. a seal assembly; 21. a first seal ring; 22. a sealing sheet; 23. an auxiliary sealing ring; 24. a first slip ring; 25. an auxiliary component; 251. an inner seal ring; 252. a chute; 253. a second slip ring; 254. a second seal ring; 3. a motor right end cover; 4. a flange plate; 5. a fixing bolt; 6. a rotating shaft; 7. a motor gear; 8. a motor left end cover; 9. a first seal groove; 10. and a second seal groove.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1:

referring to fig. 1-5, the present utility model provides a hydraulic motor sealing structure, which comprises a motor housing 1, one side of the motor housing 1 is fixedly connected with a motor right end cover 3, one side of the motor right end cover 3 is provided with a flange 4, the inner side of the flange 4 is in threaded connection with four fixing bolts 5, the four fixing bolts 5 are all in threaded connection with the inner side of the motor right end cover 3, a rotating shaft 6 is arranged in the motor housing 1, one end of the rotating shaft 6 is fixedly connected with a motor gear 7, the other side of the motor housing 1 is fixedly connected with a motor left end cover 8, one side of the motor right end cover 3 is provided with a first sealing groove 9, the other side of the motor right end cover 3 is provided with a second sealing groove 10, the inside of the motor right end cover 3 is provided with a sealing component 2, the sealing component 2 comprises a first sealing ring 21, an auxiliary sealing ring 23 and an auxiliary component 25, one side of the first sealing ring 21 is fixedly connected with a sealing piece 22, one side of the sealing piece 22 is fixedly connected with the auxiliary sealing ring 23, one side of the auxiliary sealing ring 23 is fixedly connected with a first 24, the auxiliary component 25 comprises a sliding ring 251 and a second sliding ring 253, the other side of the sliding ring 253 is fixedly connected with the inner side of the second sliding groove 251, the sliding groove 251 is fixedly connected with the inner side of the second sliding groove 252, and the inner side of the sliding groove is fixedly connected with the inner side of the second sliding groove 252 is provided with the inner side of the sliding groove 252.

Referring to fig. 2, 4 and 5, the outer side of the first seal ring 21 is rotatably connected to the inner side of the first seal groove 9.

Referring to fig. 2, 4 and 5, one side of the second slip ring 253 is attached to one side of the first slip ring 24, and the outer side of the first slip ring 24 is attached to the inner side of the chute 252.

Referring to fig. 2, 3, 4 and 5, one side of the auxiliary sealing ring 23 is rotatably connected to one side of the inner sealing ring 251, and one side of the auxiliary sealing ring 23 is attached to one side of the inner sealing ring 251.

Referring to fig. 2, 3, 4 and 5, the outer side of the second sealing ring 254 is rotatably connected to the inner side of the second sealing groove 10, and the inner side of the second sealing ring 254 is fixedly connected to the outer side of the rotating shaft 6;

working principle: in particular use, according to the sealing structure for the hydraulic motor, the first sealing groove 9 and the second sealing groove 10 are arranged to enable the first sealing ring 21 and the second sealing ring 254 to rotate in the sealing structure, and the first sealing ring 21 and the second sealing ring 254 are fixed with the outer side of the fixed bolt 5, so that when the fixed bolt 5 rotates, the sealing piece 22 and the auxiliary sealing ring 23 arranged on one side of the first sealing ring 21 and the second sealing ring 254 correspondingly rotate, and when the auxiliary sealing ring 23 drives the first sliding ring 24 to rotate, the first sliding ring 24 is in sliding fit with the second sliding ring 253, so that the sealing effect is not influenced, meanwhile, abrasion caused by the fit between the auxiliary sealing ring 23 and the inner sealing ring 251 is reduced by improving smoothness, and the first sealing ring 21 and the fixed bolt 5 are fixedly arranged, and therefore abrasion between the outer side of the fixed bolt 5 and the first sealing ring 21 is effectively prevented, namely, the other side of the auxiliary sealing ring 23 and the inner sealing ring 251 are also helped to be relieved by matching with the first sliding ring 24 and the second sealing ring 254 when the auxiliary sealing ring 23 drives the first sliding ring 24 to rotate, and the second sliding ring 251 simultaneously, and the whole sealing ring 251 is enabled to rotate well by the sealing piece 22 and the second sliding ring 251 of the sealing ring 1, and the sealing ring 251 of the motor.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A sealing structure for a hydraulic motor, comprising a motor housing (1), characterized in that: one side fixedly connected with motor right-hand member lid (3) of motor casing (1), one side of motor right-hand member lid (3) is equipped with ring flange (4), the inboard threaded connection of ring flange (4) has four gim peg (5), four gim peg (5) all with the inboard threaded connection of motor right-hand member lid (3), the inside of motor casing (1) is equipped with pivot (6), the one end fixedly connected with motor gear (7) of pivot (6), the opposite side fixedly connected with motor left end lid (8) of motor casing (1), first seal groove (9) have been seted up to one side of motor right-hand member lid (3), second seal groove (10) have been seted up to the opposite side of motor right-hand member lid (3), the inside of motor right-hand member lid (3) is equipped with sealing component (2), sealing component (2) include first sealing washer (21), auxiliary sealing ring (23) and auxiliary component (25), first sealing washer (21) fixedly set up the outside of gim peg (5), the one side fixedly connected with motor gear (7), sealing ring (22) have one side fixedly connected with sealing ring (24), the auxiliary assembly (25) comprises an inner sealing ring (251) and a second sliding ring (253), the inner sealing ring (251) is fixedly arranged on the inner side of the motor right end cover (3), a sliding groove (252) is formed in one side of the inner sealing ring (251), the second sliding ring (253) is fixedly arranged on the inner side of the sliding groove (252), and a second sealing ring (254) is rotatably connected to the other side of the inner sealing ring (251).

2. A sealing structure for a hydraulic motor according to claim 1, characterized in that: the outer side of the first sealing ring (21) is rotationally connected with the inner side of the first sealing groove (9).

3. A sealing structure for a hydraulic motor according to claim 1, characterized in that: one side of the second slip ring (253) is attached to one side of the first slip ring (24), and the outer side of the first slip ring (24) is attached to the inner side of the sliding groove (252).

4. A sealing structure for a hydraulic motor according to claim 1, characterized in that: one side of the auxiliary sealing ring (23) is rotationally connected with one side of the inner sealing ring (251), and one side of the auxiliary sealing ring (23) is attached to one side of the inner sealing ring (251).

5. A sealing structure for a hydraulic motor according to claim 1, characterized in that: the outer side of the second sealing ring (254) is rotationally connected with the inner side of the second sealing groove (10), and the inner side of the second sealing ring (254) is fixedly connected with the outer side of the rotating shaft (6).